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wrap;\">\u5c0f\u5e08\u59b9\u66fe\u5728\u4e4b\u524d\u7684\u7ae0\u8282\u4e2d\u5411\u5927\u5bb6\u7b80\u5355\u4ecb\u7ecd\u4e86\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u8d85\u53c2\u6570\u6982\u5ff5\uff0c\u5e76\u5411\u5927\u5bb6\u6559\u5b66\u5982\u4f55\u624b\u52a8\u8c03\u8282\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u8d85\u53c2\u6570\uff0c\u4f46\u5728\u5b9e\u9645\u95ee\u9898\u4e2d\uff0c\u5c24\u5176\u5bf9\u4e8e\u673a\u5668\u5b66\u4e60\u5c0f\u767d\uff0c\u8d85\u53c2\u6570\u7684\u786e\u5b9a\u662f\u975e\u5e38\u56f0\u96be\u7684\uff0c\u6240\u4ee5\u901a\u8fc7\u624b\u52a8\u7684\u65b9\u6cd5\u5f80\u5f80\u5e76\u4e0d\u80fd\u7ed9\u51fa\u5408\u7406\u7684\u7b54\u6848\uff0c\u8fd9\u4e2a\u65f6\u5019\uff0c\u9700\u8981\u5f00\u53d1\u4e00\u79cd\u57fa\u4e8e\u6570\u636e\u7684\u8d85\u53c2\u6570\u5b66\u4e60\u65b9\u6cd5\uff0cmlr3\u5305\u4e2d\u7684mlr3tuning\u5c31\u662f\u4e89\u5bf9\u8fd9\u4e00\u95ee\u9898\u5f00\u53d1\u7684\u3002<\/p>\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u8f7d\u5165\u9700\u8981\u7684R\u5305\uff1a\uff08\u6ce8\u610f\uff0c\u5728\u8fd9\u91cc\u9700\u8981\u4e0b\u8f7dmlr3learners\u5305\uff0c\u4ee5\u83b7\u53d6\u66f4\u591a\u7684learner\u65b9\u6cd5\uff09<\/p>\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">library(mlr3) <\/span><\/code><code><span class=\"code-snippet_outer\">library(mlr3tuning) <\/span><\/code><code><span class=\"code-snippet_outer\">library(mlr3learners) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" 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auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"color: rgb(248, 183, 40);text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-align: center;text-wrap: wrap;\">\u25cf<\/p>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<section style=\"font-size: 24px;text-align: justify;\" powered-by=\"xiumi.us\">\n<p>\u4e00.\u6a21\u578b\u8c03\u4f18<\/p>\n<\/section>\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"display: flex;flex-flow: row;text-align: right;justify-content: flex-end;margin-bottom: 10px;transform: translate3d(28px, 0px, 0px) rotateY(180deg);\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;align-self: center;min-width: 10%;flex: 0 0 auto;height: auto;\">\n<section style=\"text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 16px;height: 16px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(255, 204, 91);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;\">\n<section style=\"text-align: center;margin-top: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 8px;height: 8px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(172, 193, 128);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 100 100 0%;height: auto;\">\n<section style=\"margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(172, 193, 128);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u5f53\u6d89\u53ca\u5230\u4f7f\u7528mlr3\u5305\u8fdb\u884c\u8d85\u53c2\u6570\u8c03\u4f18\u65f6\uff0c\u8ba9\u6211\u4eec\u4ee5\u4e00\u4e2a\u751f\u52a8\u7684\u4f8b\u5b50\u6765\u5177\u4f53\u5c55\u793a\u8fd9\u4e2a\u8fc7\u7a0b\u3002\u5047\u8bbe\u6211\u4eec\u60f3\u8981\u9488\u5bf9\u4e00\u4e2a\u6570\u636e\u96c6\u4e0a\u7684\u652f\u6301\u5411\u91cf\u673a\uff08SVM\uff09\u6a21\u578b\u8fdb\u884c\u8d85\u53c2\u6570\u8c03\u4f18\u3002\u8fd9\u4e2a\u6570\u636e\u96c6\u662f\u7528\u4e8e\u58f0\u7eb3\u4fe1\u53f7\u5206\u7c7b\u7684\u4efb\u52a1\uff0c\u6211\u4eec\u5c06\u4f7f\u7528mlr3\u5305\u6765\u4f18\u5316SVM\u7684\u6027\u80fd\u3002<\/p>\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u9010\u6b65\u770b\u4e00\u4e0b\u5982\u4f55\u8bbe\u7f6e\u8c03\u4f18\u5b9e\u4f8b\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u4e86\u89e3\u5982\u4f55\u63a7\u5236\u8c03\u4f18\u8fc7\u7a0b\u4ee5\u53ca\u5982\u4f55\u8bbe\u8ba1\u548c\u4f7f\u7528\u8c03\u4f18\u5668\u3002\u5728\u6211\u4eec\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528SVM\u6765\u5b66\u4e60\u58f0\u7eb3\u4efb\u52a1\uff0c\u540c\u65f6\u91c7\u7528\u4e09\u6298\u4ea4\u53c9\u9a8c\u8bc1\u6765\u4f18\u5316\u5206\u7c7b\u8bef\u5dee\u5ea6\u91cf\u3002\u4e3a\u4e86\u65b9\u4fbf\u6f14\u793a\uff0c\u6211\u4eec\u5c06\u628a\u7ec8\u6b62\u5668\u8bbe\u7f6e\u4e3a\u201c\u65e0\u9650\u5236\u201d\uff0c\u4ee5\u4fbf\u6ca1\u6709\u65f6\u95f4\u9650\u5236\u3002<\/p>\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u4efb\u52a1\u5bf9\u8c61\u6765\u52a0\u8f7dsonar\u6570\u636e\u96c6\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">tsk_sonar = tsk(<span class=\"code-snippet__string\">\"sonar\"<\/span>) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u5b66\u4e60\u5668\u5bf9\u8c61\uff0c\u5373\u652f\u6301\u5411\u91cf\u673a\u6a21\u578b\uff0c\u5e76\u6839\u636e\u7ecf\u9a8c\u8bbe\u7f6e\u5b83\u7684\u8d85\u53c2\u6570\u8303\u56f4\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">learner = lrn(<span class=\"code-snippet__string\">\"classif.svm\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> cost = to_tune(<span class=\"code-snippet__number\">1e-1<\/span>, <span class=\"code-snippet__number\">1e5<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> gamma = to_tune(<span class=\"code-snippet__number\">1e-1<\/span>, <span class=\"code-snippet__number\">1<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> kernel = <span class=\"code-snippet__string\">\"radial\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> type = <span class=\"code-snippet__string\">\"C-classification\"<\/span> <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u901a\u8fc7ti()\u521b\u5efa\u4e00\u4e2a\u8c03\u4f18\u5b9e\u4f8b\uff0c\u8fd9\u91cc\u6211\u4eec\u4f7f\u7528\u4e09\u6298\u4ea4\u53c9\u9a8c\u8bc1\u548c\u5206\u7c7b\u8bef\u5dee\u5ea6\u91cf\uff0c\u5e76\u901a\u8fc7terminator = trm(“none”) \u8bbe\u7f6e\u7ec8\u6b62\u5668\u4e3a\u201c\u65e0\u9650\u5236\u201d\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">instance = ti( <\/span><\/code><code><span class=\"code-snippet_outer\"> task = tsk_sonar, <\/span><\/code><code><span class=\"code-snippet_outer\"> learner = learner, <\/span><\/code><code><span class=\"code-snippet_outer\"> resampling = rsmp(<span class=\"code-snippet__string\">\"cv\"<\/span>, folds = <span class=\"code-snippet__number\">3<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> measures = msr(<span class=\"code-snippet__string\">\"classif.ce\"<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> terminator = trm(<span class=\"code-snippet__string\">\"none\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><\/pre>\n<\/section>\n<p style=\"text-indent: 2em;text-wrap: wrap;\" powered-by=\"xiumi.us\">\u8d85\u53c2\u6570\u4f18\u5316\u7684\u8c03\u4f18\u5668\u6709\u5f88\u591a\u79cd\uff0c\u6211\u4eec\u5217\u51fa\u5e38\u89c1\u7684\uff1a<\/p>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.5268518518518519\" data-s=\"300,640\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/2_Mn2fQQVbKbPBpmiaawLDHx6vQzGibQ.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42Im0HngUrdXuHb4wUlQM2ef6R2aMn2fQQVbKbPBpmiaawLDHx6vQzGibQ\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u9009\u62e9\u5e76\u8bbe\u7f6e\u6211\u4eec\u7684\u8c03\u4f18\u5668\uff0c\u6211\u4eec\u4f7f\u7528\u7f51\u683c\u641c\u7d22\u8c03\u4f18\u5668\uff0c\u5206\u8fa8\u7387\u4e3a5\uff0c\u5728\u5b9e\u8df5\u4e2d\uff0c\u9996\u9009\u66f4\u5927\u7684\u5206\u8fa8\u7387\u3002\u5206\u8fa8\u7387\u662f\u6bcf\u4e2a\u8d85\u53c2\u6570\u8981\u5c1d\u8bd5\u7684\u4e0d\u540c\u503c\u7684\u6570\u91cf\uff0c\u8fd9\u610f\u5473\u7740\u5728\u6211\u4eec\u7684\u793a\u4f8b\u4e2d\uff0c\u8c03\u8c10\u5668\u5c06\u5728\u6307\u5b9a\u7684\u4e0a\u9650\u548c\u4e0b\u9650\u4e4b\u95f4\u6784\u9020\u4e00\u4e2a\u5305\u542b 5 \u4e2a\u7b49\u95f4\u8ddd\u70b9\u914d\u7f6e\u7684 25×4 \u7f51\u683c\u3002\u8c03\u8c10\u5668\u5c06\u5c1d\u8bd5\u6240\u6709\u914d\u7f6e\uff08\u4ee5\u968f\u673a\u987a\u5e8f\uff09\uff0c\u76f4\u5230\u8bc4\u4f30\u6240\u6709\u914d\u7f6e\u6216\u7ec8\u6b62\u5668\u53d1\u51fa\u9884\u7b97\u7528\u5c3d\u7684\u4fe1\u53f7\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u8bbe\u7f6e\u8c03\u4f18\u5668 <\/span><\/code><code><span class=\"code-snippet_outer\">tuner = tnr(<span class=\"code-snippet__string\">\"grid_search\"<\/span>, resolution = <span class=\"code-snippet__number\">5<\/span>, batch_size = <span class=\"code-snippet__number\">10<\/span>)<\/span><\/code><\/pre>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u6700\u540e\uff0c\u6211\u4eec\u8fd0\u884c\u8c03\u4f18\u8fc7\u7a0b\uff0c\u8ba9\u8c03\u4f18\u5668\u4f18\u5316\u6211\u4eec\u4e4b\u524d\u521b\u5efa\u7684\u8c03\u4f18\u5b9e\u4f8b\uff0c\u4f18\u5316\u5668\u8fd4\u56de\u6700\u4f73\u8d85\u53c2\u6570\u914d\u7f6e\u548c\u76f8\u5e94\u7684\u6027\u80fd\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u8c03\u4f18 <\/span><\/code><code><span class=\"code-snippet_outer\">tuner$optimize(instance) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.3851851851851852\" data-s=\"300,640\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/3_Vuf2SdQdRzIXqC7uft6bem54cFENTg.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42pKicGAVv7VDHwQDZy0nXzs0EVVuf2SdQdRzIXqC7uft6bem54cFENTg\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u53ef\u4ee5\u5728\u8fd9\u91cc\u770b\u51fa\uff0c\u6700\u7ec8\u8c03\u4f18\u7684\u7ed3\u679c\u663e\u793a\u5e94\u9009\u62e9\u8d85\u53c2\u6570cost=25000.09,gamma=0.1\u3002<\/p>\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u8fd8\u53ef\u4ee5\u5728\u8d85\u53c2\u6570\u8c03\u4f18\u4e2d\u4f7f\u7528\u5bf9\u6570\u53d8\u6362\uff0c\u5728\u8d85\u53c2\u6570\u8c03\u4f18\u4e2d\u4f7f\u7528\u5bf9\u6570\u53d8\u6362\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u6280\u5de7\uff0c\u4e3b\u8981\u662f\u4e3a\u4e86\u5728\u641c\u7d22\u8d85\u53c2\u6570\u7a7a\u95f4\u65f6\u66f4\u6709\u6548\u5730\u63a2\u7d22\u53ef\u80fd\u7684\u503c\u8303\u56f4\u3002\u8fd9\u79cd\u6280\u5de7\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u4ee5\u63d0\u4f9b\u4e00\u4e9b\u4f18\u52bf\uff0c\u5c24\u5176\u662f\u5f53\u8d85\u53c2\u6570\u7684\u53d6\u503c\u8303\u56f4\u8de8\u8d8a\u591a\u4e2a\u6570\u91cf\u7ea7\u65f6\u3002\u4f7f\u7528\u5bf9\u6570\u53d8\u6362\u5f88\u7b80\u5355\uff0c\u53ea\u9700\u8981\u5728to_tune\uff08\uff09\u4e2d\u52a0\u5165\u8f93\u5165logscale = TRUE.<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#--------\u3001 <\/span><\/code><code><span class=\"code-snippet_outer\">#\u5bf9\u6570\u53d8\u6362 <\/span><\/code><code><span class=\"code-snippet_outer\">learner = lrn(<span class=\"code-snippet__string\">\"classif.svm\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> cost = to_tune(<span class=\"code-snippet__number\">1e-5<\/span>, <span class=\"code-snippet__number\">1e5<\/span>, logscale = TRUE), <\/span><\/code><code><span class=\"code-snippet_outer\"> gamma = to_tune(<span class=\"code-snippet__number\">1e-5<\/span>, <span class=\"code-snippet__number\">1e5<\/span>, logscale = TRUE), <\/span><\/code><code><span class=\"code-snippet_outer\"> kernel = <span class=\"code-snippet__string\">\"radial\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> type = <span class=\"code-snippet__string\">\"C-classification\"<\/span> <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><code><span class=\"code-snippet_outer\">instance = ti( <\/span><\/code><code><span class=\"code-snippet_outer\"> task = tsk_sonar, <\/span><\/code><code><span class=\"code-snippet_outer\"> learner = learner, <\/span><\/code><code><span class=\"code-snippet_outer\"> resampling = rsmp(<span class=\"code-snippet__string\">\"cv\"<\/span>, folds = <span class=\"code-snippet__number\">3<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> measures = msr(<span class=\"code-snippet__string\">\"classif.ce\"<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> terminator = trm(<span class=\"code-snippet__string\">\"none\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><code><span class=\"code-snippet_outer\">tuner$optimize(instance) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.05657492354740061\" data-s=\"300,640\" data-type=\"png\" data-w=\"654\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/4_d8rE6GVea0RX1b6VYDjXKtIj6yIhlQ.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42NpNUNJc15bIxtiaDfmrLC4waod8rE6GVea0RX1b6VYDjXKtIj6yIhlQ\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 10px;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 76%;vertical-align: top;flex: 0 0 auto;height: auto;align-self: flex-start;\">\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"color: rgb(248, 183, 40);text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-align: center;text-wrap: wrap;\">\u25cf<\/p>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<section style=\"text-align: justify;font-size: 24px;\" powered-by=\"xiumi.us\">\n<p>\u4e8c.\u7ed3\u679c\u5206\u6790<\/p>\n<\/section>\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"display: flex;flex-flow: row;text-align: right;justify-content: flex-end;margin-bottom: 10px;transform: translate3d(28px, 0px, 0px) rotateY(180deg);\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;align-self: center;min-width: 10%;flex: 0 0 auto;height: auto;\">\n<section style=\"text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 16px;height: 16px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(255, 204, 91);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;\">\n<section style=\"text-align: center;margin-top: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 8px;height: 8px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(172, 193, 128);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 100 100 0%;height: auto;\">\n<section style=\"margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(172, 193, 128);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u6211\u4eec\u4f7f\u7528\u5bf9\u6570\u53d8\u6362\u540e\u7684\u8d85\u53c2\u6570\u4f18\u5316\u793a\u4f8b\u8fdb\u884c\u7ed3\u679c\u5206\u6790\uff0c\u53ef\u4ee5\u901a\u8fc7archive\u51fd\u6570\u8c03\u53d6\u6bcf\u6b21\u8d85\u53c2\u6570\u4f18\u5316\u7684\u7ed3\u679c\uff0c\u5148\u5c06\u8be5\u7ed3\u679c\u8f6c\u5316\u6210data.table\u683c\u5f0f\u518d\u8fdb\u884c\u7d22\u5f15\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u7ed3\u679c\u5206\u6790 <\/span><\/code><code><span class=\"code-snippet_outer\">as.data.table(instance$archive)[<span class=\"code-snippet__number\">1<\/span>:<span class=\"code-snippet__number\">5<\/span>, .(cost, gamma, classif.ce)] <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.2158920539730135\" data-s=\"300,640\" data-type=\"png\" data-w=\"667\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/5_2YI1EYSIMic8WQiawpaewwxddibwYA.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42ibN3XwLuTOVia97FG87Mq0taONG5H2YI1EYSIMic8WQiawpaewwxddibwYA\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u8fd8\u53ef\u4ee5\u8bfb\u53d6\u8d85\u53c2\u6570\u4f18\u5316\u4e2d\u7684\u8c03\u4f18\u65f6\u95f4\u3001\u8b66\u544a\u548c\u9519\u8bef\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">as.data.table(instance$archive)[<span class=\"code-snippet__number\">1<\/span>:<span class=\"code-snippet__number\">5<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> .(timestamp, runtime_learners, errors, warnings)]#\u8fd0\u884c\u65f6\u95f4\u3001\u9519\u8bef\u548c\u8b66\u544a\u8bfb\u53d6 <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.15950334288443171\" data-s=\"300,640\" data-type=\"png\" data-w=\"1047\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/6_IQdA8qxgVYPUrkhm2rKxPLvIS38xVg.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42pbe2BqSsrRB76Hs3YalIqDtyIQdA8qxgVYPUrkhm2rKxPLvIS38xVg\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u540c\u6837\u53ef\u4ee5\u4f7f\u7528mlr3viz\u5bf9\u7ed3\u679c\u8fdb\u884c\u53ef\u89c6\u5316\uff0c\u53ef\u4ee5\u901a\u8fc7\u7f51\u683c\u7684\u989c\u8272\u548c\u6a2a\u7eb5\u5750\u6807\u6765\u89c2\u5bdf\u4e0d\u540c\u53c2\u6570\u7684\u6a21\u578b\u4f18\u52a3\uff1a<\/p>\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u53ef\u89c6\u5316 <\/span><\/code><code><span class=\"code-snippet_outer\">library(mlr3viz) <\/span><\/code><code><span class=\"code-snippet_outer\">autoplot(instance, type = <span class=\"code-snippet__string\">\"surface\"<\/span>) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.993801652892562\" data-s=\"300,640\" data-type=\"png\" data-w=\"968\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/7_CV82sgwD6RCvEqXuAlXkfiacOCQSLA.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt424llWic2ZAteRbeAXFMibw9qvL14CV82sgwD6RCvEqXuAlXkfiacOCQSLA\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u6700\u540e\uff0c\u5f53\u6211\u4eec\u9009\u62e9\u4e86\u5408\u9002\u7684\u8d85\u53c2\u6570\uff0c\u5c31\u53ef\u4ee5\u7528\u5176\u5bf9\u6211\u4eec\u9700\u8981\u7684\u6570\u636e\u8fdb\u884c\u8bad\u7ec3\uff0c\u6765\u8bad\u7ec3\u6574\u4e2a\u6570\u636e\u7684\u6700\u7ec8\u6a21\u578b\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u53ea\u9700\u4f7f\u7528\u76f8\u540c\u7684\u5e95\u5c42\u7b97\u6cd5\u6784\u9020\u4e00\u4e2a\u65b0\u7684\u5b66\u4e60\u5668\uff0c\u5e76\u5c06\u5b66\u4e60\u5668\u8d85\u53c2\u6570\u8bbe\u7f6e\u4e3a\u6700\u4f73\u914d\u7f6e\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u8bad\u7ec3\u4f18\u5316\u540e\u7684\u6a21\u578b <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_svm_tuned = lrn(<span class=\"code-snippet__string\">\"classif.svm\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_svm_tuned$param_set$values = instance$result_learner_param_vals#\u5c06\u4f18\u5316\u540e\u7684\u8d85\u53c2\u6570\u8bfb\u5165\u6211\u4eec\u6240\u4f7f\u7528\u7684\u6a21\u578b\u4e2d <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_svm_tuned$train(tsk_sonar)$model <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.2222222222222222\" data-s=\"300,640\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/8_PMJa4ia2MuSdXmicvHiaricFMe8n0g.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42rVc6MyHL57mdpa49QGSeB0LGknbrPMJa4ia2MuSdXmicvHiaricFMe8n0g\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 10px;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 76%;vertical-align: top;flex: 0 0 auto;height: auto;align-self: flex-start;\">\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"color: rgb(248, 183, 40);text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-align: center;text-wrap: wrap;\">\u25cf<\/p>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<section style=\"text-align: justify;font-size: 24px;\" powered-by=\"xiumi.us\">\n<p>\u4e09.\u81ea\u52a8\u8c03\u4f18\u65b9\u6cd5<\/p>\n<\/section>\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"display: flex;flex-flow: row;text-align: right;justify-content: flex-end;margin-bottom: 10px;transform: translate3d(28px, 0px, 0px) rotateY(180deg);\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;align-self: center;min-width: 10%;flex: 0 0 auto;height: auto;\">\n<section style=\"text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 16px;height: 16px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(255, 204, 91);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;\">\n<section style=\"text-align: center;margin-top: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 8px;height: 8px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(172, 193, 128);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 100 100 0%;height: auto;\">\n<section style=\"margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(172, 193, 128);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u5728\u4e0a\u9762\u7684\u8c03\u4f18\u793a\u4f8b\u4e2d\uff0c\u5c0f\u5e08\u59b9\u5e26\u5927\u5bb6\u4f7f\u7528ti()\u51fd\u6570\u5e76\u9009\u62e9\u9700\u8981\u7684\u4f18\u5316\u65b9\u6cd5\u8fdb\u884c\u8d85\u53c2\u6570\u7684\u8c03\u4f18\uff0c\u800c\u518dmlr3tuning\u4e2d\uff0c\u63d0\u4f9b\u4e86\u5bf9\u65b0\u624b\u66f4\u4e3a\u53cb\u597d\u7684\u8c03\u4f18\u65b9\u6cd5\uff0c\u5c0f\u5e08\u59b9\u66f4\u63a8\u8350\u540c\u5b66\u4eec\u5c1d\u8bd5\uff01<\/p>\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u5176\u4e00\u662ftune()\u51fd\u6570\uff0c\u540c\u65f6\uff0c\u5b83\u53ef\u4ee5\u5728\u5185\u90e8\u8bbe\u7f6e\u76f8\u5e94\u7684\u91cd\u91c7\u6837\u65b9\u6cd5\uff0c\u66f4\u4e3a\u51c6\u786e\u5730\u8bc4\u4f30\u6a21\u578b\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">tnr_grid_search = tnr(<span class=\"code-snippet__string\">\"grid_search\"<\/span>, resolution = <span class=\"code-snippet__number\">5<\/span>, batch_size = <span class=\"code-snippet__number\">5<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_svm = lrn(<span class=\"code-snippet__string\">\"classif.svm\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> cost = to_tune(<span class=\"code-snippet__number\">1e-5<\/span>, <span class=\"code-snippet__number\">1e5<\/span>, logscale = TRUE), <\/span><\/code><code><span class=\"code-snippet_outer\"> gamma = to_tune(<span class=\"code-snippet__number\">1e-5<\/span>, <span class=\"code-snippet__number\">1e5<\/span>, logscale = TRUE), <\/span><\/code><code><span class=\"code-snippet_outer\"> kernel = <span class=\"code-snippet__string\">\"radial\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> type = <span class=\"code-snippet__string\">\"C-classification\"<\/span> <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><code><span class=\"code-snippet_outer\">rsmp_cv3 = rsmp(<span class=\"code-snippet__string\">\"cv\"<\/span>, folds = <span class=\"code-snippet__number\">3<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">msr_ce = msr(<span class=\"code-snippet__string\">\"classif.ce\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">instance = tune( <\/span><\/code><code><span class=\"code-snippet_outer\"> tuner = tnr_grid_search, <\/span><\/code><code><span class=\"code-snippet_outer\"> task = tsk_sonar, <\/span><\/code><code><span class=\"code-snippet_outer\"> learner = lrn_svm, <\/span><\/code><code><span class=\"code-snippet_outer\"> resampling = rsmp_cv3, <\/span><\/code><code><span class=\"code-snippet_outer\"> measures = msr_ce <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><code><span class=\"code-snippet_outer\">instance$result <\/span><\/code><\/pre>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u8fd8\u6709\u4e00\u4e2a\u66f4\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u4f7f\u7528auto_tuner()\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u63d0\u524d\u8bbe\u7f6e\uff0c\u7136\u540e\u518d\u8c03\u7528\u6570\u636e\u65f6\uff0c\u81ea\u52a8\u4e3a\u6570\u636e\u63d0\u4f9b\u4e00\u4e2a\u76f8\u5bf9\u6700\u4f18\u7684\u8d85\u53c2\u6570\uff0c\u76f4\u63a5\u4f7f\u7528auto_tuner\u8fd4\u56de\u7684\u5bf9\u8c61\uff0c\u5c31\u53ef\u4ee5\u9488\u5bf9\u7279\u5b9a\u6570\u636e\u96c6\u5206\u522b\u7ed9\u51fa\u5408\u9002\u7684\u8d85\u53c2\u6570\u3002<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"1.9445945945945946\" data-s=\"300,640\" data-type=\"png\" data-w=\"740\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/9_b0bT7qAmrxK2hOSMSQAcP8Zndz8jqA.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42D0afVpJFXzvwibXoicl7jaNmxWib0bT7qAmrxK2hOSMSQAcP8Zndz8jqA\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<p powered-by=\"xiumi.us\"><br \/><\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#auto_tuner <\/span><\/code><code><span class=\"code-snippet_outer\">ainst = auto_tuner( <\/span><\/code><code><span class=\"code-snippet_outer\"> tuner = tnr_grid_search, <\/span><\/code><code><span class=\"code-snippet_outer\"> learner = lrn_svm, <\/span><\/code><code><span class=\"code-snippet_outer\"> resampling = rsmp_cv3, <\/span><\/code><code><span class=\"code-snippet_outer\"> measure = msr_ce <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><code><span class=\"code-snippet_outer\">ainst <\/span><\/code><code><span class=\"code-snippet_outer\">split = partition(tsk_sonar) <\/span><\/code><code><span class=\"code-snippet_outer\">ainst$train(tsk_sonar, row_ids = split$train) <\/span><\/code><code><span class=\"code-snippet_outer\">ainst$predict(tsk_sonar, row_ids = split$test)$score() <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.13410596026490065\" data-s=\"300,640\" data-type=\"png\" data-w=\"604\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/10_hKcQica6mqpcpLNtmdRGqEVficU3PQ.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42u8c39iau5r54Y9azaLT36ia49UAnhKcQica6mqpcpLNtmdRGqEVficU3PQ\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 10px;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 76%;vertical-align: top;flex: 0 0 auto;height: auto;align-self: flex-start;\">\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"color: rgb(248, 183, 40);text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-align: center;text-wrap: wrap;\">\u25cf<\/p>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: 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wrap;\">\u5c0f\u5e08\u59b9\u66fe\u5728\u4e4b\u524d\u7684\u7ae0\u8282\u4e2d\u5411\u5927\u5bb6\u7b80\u5355\u4ecb\u7ecd\u4e86\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u8d85\u53c2\u6570\u6982\u5ff5\uff0c\u5e76\u5411\u5927\u5bb6\u6559\u5b66\u5982\u4f55\u624b\u52a8\u8c03\u8282\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u8d85\u53c2\u6570\uff0c\u4f46\u5728\u5b9e\u9645\u95ee\u9898\u4e2d\uff0c\u5c24\u5176\u5bf9\u4e8e\u673a\u5668\u5b66\u4e60\u5c0f\u767d\uff0c\u8d85\u53c2\u6570\u7684\u786e\u5b9a\u662f\u975e\u5e38\u56f0\u96be\u7684\uff0c\u6240\u4ee5\u901a\u8fc7\u624b\u52a8\u7684\u65b9\u6cd5\u5f80\u5f80\u5e76\u4e0d\u80fd\u7ed9\u51fa\u5408\u7406\u7684\u7b54\u6848\uff0c\u8fd9\u4e2a\u65f6\u5019\uff0c\u9700\u8981\u5f00\u53d1\u4e00\u79cd\u57fa\u4e8e\u6570\u636e\u7684\u8d85\u53c2\u6570\u5b66\u4e60\u65b9\u6cd5\uff0cmlr3\u5305\u4e2d\u7684mlr3tuning\u5c31\u662f\u4e89\u5bf9\u8fd9\u4e00\u95ee\u9898\u5f00\u53d1\u7684\u3002<\/p>\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u8f7d\u5165\u9700\u8981\u7684R\u5305\uff1a\uff08\u6ce8\u610f\uff0c\u5728\u8fd9\u91cc\u9700\u8981\u4e0b\u8f7dmlr3learners\u5305\uff0c\u4ee5\u83b7\u53d6\u66f4\u591a\u7684learner\u65b9\u6cd5\uff09<\/p>\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">library(mlr3) <\/span><\/code><code><span class=\"code-snippet_outer\">library(mlr3tuning) <\/span><\/code><code><span class=\"code-snippet_outer\">library(mlr3learners) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" data-ratio=\"0.47738693467336685\" data-s=\"300,640\" data-type=\"png\" data-w=\"597\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/1_3MwWIyzM1Y3PYqhuqibDHpANS5f91w.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42lc0porvjHcxyDUL4Q39vDXibeP3MwWIyzM1Y3PYqhuqibDHpANS5f91w\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 10px;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 76%;vertical-align: top;flex: 0 0 auto;height: auto;align-self: flex-start;\">\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"color: rgb(248, 183, 40);text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-align: center;text-wrap: wrap;\">\u25cf<\/p>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<section style=\"font-size: 24px;text-align: justify;\" powered-by=\"xiumi.us\">\n<p>\u4e00.\u6a21\u578b\u8c03\u4f18<\/p>\n<\/section>\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"display: flex;flex-flow: row;text-align: right;justify-content: flex-end;margin-bottom: 10px;transform: translate3d(28px, 0px, 0px) rotateY(180deg);\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;align-self: center;min-width: 10%;flex: 0 0 auto;height: auto;\">\n<section style=\"text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 16px;height: 16px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(255, 204, 91);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;\">\n<section style=\"text-align: center;margin-top: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 8px;height: 8px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(172, 193, 128);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 100 100 0%;height: auto;\">\n<section style=\"margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(172, 193, 128);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u5f53\u6d89\u53ca\u5230\u4f7f\u7528mlr3\u5305\u8fdb\u884c\u8d85\u53c2\u6570\u8c03\u4f18\u65f6\uff0c\u8ba9\u6211\u4eec\u4ee5\u4e00\u4e2a\u751f\u52a8\u7684\u4f8b\u5b50\u6765\u5177\u4f53\u5c55\u793a\u8fd9\u4e2a\u8fc7\u7a0b\u3002\u5047\u8bbe\u6211\u4eec\u60f3\u8981\u9488\u5bf9\u4e00\u4e2a\u6570\u636e\u96c6\u4e0a\u7684\u652f\u6301\u5411\u91cf\u673a\uff08SVM\uff09\u6a21\u578b\u8fdb\u884c\u8d85\u53c2\u6570\u8c03\u4f18\u3002\u8fd9\u4e2a\u6570\u636e\u96c6\u662f\u7528\u4e8e\u58f0\u7eb3\u4fe1\u53f7\u5206\u7c7b\u7684\u4efb\u52a1\uff0c\u6211\u4eec\u5c06\u4f7f\u7528mlr3\u5305\u6765\u4f18\u5316SVM\u7684\u6027\u80fd\u3002<\/p>\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u9010\u6b65\u770b\u4e00\u4e0b\u5982\u4f55\u8bbe\u7f6e\u8c03\u4f18\u5b9e\u4f8b\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u4e86\u89e3\u5982\u4f55\u63a7\u5236\u8c03\u4f18\u8fc7\u7a0b\u4ee5\u53ca\u5982\u4f55\u8bbe\u8ba1\u548c\u4f7f\u7528\u8c03\u4f18\u5668\u3002\u5728\u6211\u4eec\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528SVM\u6765\u5b66\u4e60\u58f0\u7eb3\u4efb\u52a1\uff0c\u540c\u65f6\u91c7\u7528\u4e09\u6298\u4ea4\u53c9\u9a8c\u8bc1\u6765\u4f18\u5316\u5206\u7c7b\u8bef\u5dee\u5ea6\u91cf\u3002\u4e3a\u4e86\u65b9\u4fbf\u6f14\u793a\uff0c\u6211\u4eec\u5c06\u628a\u7ec8\u6b62\u5668\u8bbe\u7f6e\u4e3a\u201c\u65e0\u9650\u5236\u201d\uff0c\u4ee5\u4fbf\u6ca1\u6709\u65f6\u95f4\u9650\u5236\u3002<\/p>\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u4efb\u52a1\u5bf9\u8c61\u6765\u52a0\u8f7dsonar\u6570\u636e\u96c6\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">tsk_sonar = tsk(<span class=\"code-snippet__string\">\"sonar\"<\/span>) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u5b66\u4e60\u5668\u5bf9\u8c61\uff0c\u5373\u652f\u6301\u5411\u91cf\u673a\u6a21\u578b\uff0c\u5e76\u6839\u636e\u7ecf\u9a8c\u8bbe\u7f6e\u5b83\u7684\u8d85\u53c2\u6570\u8303\u56f4\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">learner = lrn(<span class=\"code-snippet__string\">\"classif.svm\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> cost = to_tune(<span class=\"code-snippet__number\">1e-1<\/span>, <span class=\"code-snippet__number\">1e5<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> gamma = to_tune(<span class=\"code-snippet__number\">1e-1<\/span>, <span class=\"code-snippet__number\">1<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> kernel = <span class=\"code-snippet__string\">\"radial\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> type = <span class=\"code-snippet__string\">\"C-classification\"<\/span> <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u901a\u8fc7ti()\u521b\u5efa\u4e00\u4e2a\u8c03\u4f18\u5b9e\u4f8b\uff0c\u8fd9\u91cc\u6211\u4eec\u4f7f\u7528\u4e09\u6298\u4ea4\u53c9\u9a8c\u8bc1\u548c\u5206\u7c7b\u8bef\u5dee\u5ea6\u91cf\uff0c\u5e76\u901a\u8fc7terminator = trm(“none”) \u8bbe\u7f6e\u7ec8\u6b62\u5668\u4e3a\u201c\u65e0\u9650\u5236\u201d\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">instance = ti( <\/span><\/code><code><span class=\"code-snippet_outer\"> task = tsk_sonar, <\/span><\/code><code><span class=\"code-snippet_outer\"> learner = learner, <\/span><\/code><code><span class=\"code-snippet_outer\"> resampling = rsmp(<span class=\"code-snippet__string\">\"cv\"<\/span>, folds = <span class=\"code-snippet__number\">3<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> measures = msr(<span class=\"code-snippet__string\">\"classif.ce\"<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> terminator = trm(<span class=\"code-snippet__string\">\"none\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><\/pre>\n<\/section>\n<p style=\"text-indent: 2em;text-wrap: wrap;\" powered-by=\"xiumi.us\">\u8d85\u53c2\u6570\u4f18\u5316\u7684\u8c03\u4f18\u5668\u6709\u5f88\u591a\u79cd\uff0c\u6211\u4eec\u5217\u51fa\u5e38\u89c1\u7684\uff1a<\/p>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.5268518518518519\" data-s=\"300,640\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/2_Mn2fQQVbKbPBpmiaawLDHx6vQzGibQ.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42Im0HngUrdXuHb4wUlQM2ef6R2aMn2fQQVbKbPBpmiaawLDHx6vQzGibQ\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u9009\u62e9\u5e76\u8bbe\u7f6e\u6211\u4eec\u7684\u8c03\u4f18\u5668\uff0c\u6211\u4eec\u4f7f\u7528\u7f51\u683c\u641c\u7d22\u8c03\u4f18\u5668\uff0c\u5206\u8fa8\u7387\u4e3a5\uff0c\u5728\u5b9e\u8df5\u4e2d\uff0c\u9996\u9009\u66f4\u5927\u7684\u5206\u8fa8\u7387\u3002\u5206\u8fa8\u7387\u662f\u6bcf\u4e2a\u8d85\u53c2\u6570\u8981\u5c1d\u8bd5\u7684\u4e0d\u540c\u503c\u7684\u6570\u91cf\uff0c\u8fd9\u610f\u5473\u7740\u5728\u6211\u4eec\u7684\u793a\u4f8b\u4e2d\uff0c\u8c03\u8c10\u5668\u5c06\u5728\u6307\u5b9a\u7684\u4e0a\u9650\u548c\u4e0b\u9650\u4e4b\u95f4\u6784\u9020\u4e00\u4e2a\u5305\u542b 5 \u4e2a\u7b49\u95f4\u8ddd\u70b9\u914d\u7f6e\u7684 25×4 \u7f51\u683c\u3002\u8c03\u8c10\u5668\u5c06\u5c1d\u8bd5\u6240\u6709\u914d\u7f6e\uff08\u4ee5\u968f\u673a\u987a\u5e8f\uff09\uff0c\u76f4\u5230\u8bc4\u4f30\u6240\u6709\u914d\u7f6e\u6216\u7ec8\u6b62\u5668\u53d1\u51fa\u9884\u7b97\u7528\u5c3d\u7684\u4fe1\u53f7\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u8bbe\u7f6e\u8c03\u4f18\u5668 <\/span><\/code><code><span class=\"code-snippet_outer\">tuner = tnr(<span class=\"code-snippet__string\">\"grid_search\"<\/span>, resolution = <span class=\"code-snippet__number\">5<\/span>, batch_size = <span class=\"code-snippet__number\">10<\/span>)<\/span><\/code><\/pre>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u6700\u540e\uff0c\u6211\u4eec\u8fd0\u884c\u8c03\u4f18\u8fc7\u7a0b\uff0c\u8ba9\u8c03\u4f18\u5668\u4f18\u5316\u6211\u4eec\u4e4b\u524d\u521b\u5efa\u7684\u8c03\u4f18\u5b9e\u4f8b\uff0c\u4f18\u5316\u5668\u8fd4\u56de\u6700\u4f73\u8d85\u53c2\u6570\u914d\u7f6e\u548c\u76f8\u5e94\u7684\u6027\u80fd\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u8c03\u4f18 <\/span><\/code><code><span class=\"code-snippet_outer\">tuner$optimize(instance) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.3851851851851852\" data-s=\"300,640\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/3_Vuf2SdQdRzIXqC7uft6bem54cFENTg.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42pKicGAVv7VDHwQDZy0nXzs0EVVuf2SdQdRzIXqC7uft6bem54cFENTg\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u53ef\u4ee5\u5728\u8fd9\u91cc\u770b\u51fa\uff0c\u6700\u7ec8\u8c03\u4f18\u7684\u7ed3\u679c\u663e\u793a\u5e94\u9009\u62e9\u8d85\u53c2\u6570cost=25000.09,gamma=0.1\u3002<\/p>\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u8fd8\u53ef\u4ee5\u5728\u8d85\u53c2\u6570\u8c03\u4f18\u4e2d\u4f7f\u7528\u5bf9\u6570\u53d8\u6362\uff0c\u5728\u8d85\u53c2\u6570\u8c03\u4f18\u4e2d\u4f7f\u7528\u5bf9\u6570\u53d8\u6362\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u6280\u5de7\uff0c\u4e3b\u8981\u662f\u4e3a\u4e86\u5728\u641c\u7d22\u8d85\u53c2\u6570\u7a7a\u95f4\u65f6\u66f4\u6709\u6548\u5730\u63a2\u7d22\u53ef\u80fd\u7684\u503c\u8303\u56f4\u3002\u8fd9\u79cd\u6280\u5de7\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u4ee5\u63d0\u4f9b\u4e00\u4e9b\u4f18\u52bf\uff0c\u5c24\u5176\u662f\u5f53\u8d85\u53c2\u6570\u7684\u53d6\u503c\u8303\u56f4\u8de8\u8d8a\u591a\u4e2a\u6570\u91cf\u7ea7\u65f6\u3002\u4f7f\u7528\u5bf9\u6570\u53d8\u6362\u5f88\u7b80\u5355\uff0c\u53ea\u9700\u8981\u5728to_tune\uff08\uff09\u4e2d\u52a0\u5165\u8f93\u5165logscale = TRUE.<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#--------\u3001 <\/span><\/code><code><span class=\"code-snippet_outer\">#\u5bf9\u6570\u53d8\u6362 <\/span><\/code><code><span class=\"code-snippet_outer\">learner = lrn(<span class=\"code-snippet__string\">\"classif.svm\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> cost = to_tune(<span class=\"code-snippet__number\">1e-5<\/span>, <span class=\"code-snippet__number\">1e5<\/span>, logscale = TRUE), <\/span><\/code><code><span class=\"code-snippet_outer\"> gamma = to_tune(<span class=\"code-snippet__number\">1e-5<\/span>, <span class=\"code-snippet__number\">1e5<\/span>, logscale = TRUE), <\/span><\/code><code><span class=\"code-snippet_outer\"> kernel = <span class=\"code-snippet__string\">\"radial\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> type = <span class=\"code-snippet__string\">\"C-classification\"<\/span> <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><code><span class=\"code-snippet_outer\">instance = ti( <\/span><\/code><code><span class=\"code-snippet_outer\"> task = tsk_sonar, <\/span><\/code><code><span class=\"code-snippet_outer\"> learner = learner, <\/span><\/code><code><span class=\"code-snippet_outer\"> resampling = rsmp(<span class=\"code-snippet__string\">\"cv\"<\/span>, folds = <span class=\"code-snippet__number\">3<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> measures = msr(<span class=\"code-snippet__string\">\"classif.ce\"<\/span>), <\/span><\/code><code><span class=\"code-snippet_outer\"> terminator = trm(<span class=\"code-snippet__string\">\"none\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><code><span class=\"code-snippet_outer\">tuner$optimize(instance) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.05657492354740061\" data-s=\"300,640\" data-type=\"png\" data-w=\"654\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/4_d8rE6GVea0RX1b6VYDjXKtIj6yIhlQ.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42NpNUNJc15bIxtiaDfmrLC4waod8rE6GVea0RX1b6VYDjXKtIj6yIhlQ\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 10px;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 76%;vertical-align: top;flex: 0 0 auto;height: auto;align-self: flex-start;\">\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"color: rgb(248, 183, 40);text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-align: center;text-wrap: wrap;\">\u25cf<\/p>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<section style=\"text-align: justify;font-size: 24px;\" powered-by=\"xiumi.us\">\n<p>\u4e8c.\u7ed3\u679c\u5206\u6790<\/p>\n<\/section>\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"display: flex;flex-flow: row;text-align: right;justify-content: flex-end;margin-bottom: 10px;transform: translate3d(28px, 0px, 0px) rotateY(180deg);\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;align-self: center;min-width: 10%;flex: 0 0 auto;height: auto;\">\n<section style=\"text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 16px;height: 16px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(255, 204, 91);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;\">\n<section style=\"text-align: center;margin-top: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 8px;height: 8px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(172, 193, 128);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 100 100 0%;height: auto;\">\n<section style=\"margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(172, 193, 128);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u6211\u4eec\u4f7f\u7528\u5bf9\u6570\u53d8\u6362\u540e\u7684\u8d85\u53c2\u6570\u4f18\u5316\u793a\u4f8b\u8fdb\u884c\u7ed3\u679c\u5206\u6790\uff0c\u53ef\u4ee5\u901a\u8fc7archive\u51fd\u6570\u8c03\u53d6\u6bcf\u6b21\u8d85\u53c2\u6570\u4f18\u5316\u7684\u7ed3\u679c\uff0c\u5148\u5c06\u8be5\u7ed3\u679c\u8f6c\u5316\u6210data.table\u683c\u5f0f\u518d\u8fdb\u884c\u7d22\u5f15\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u7ed3\u679c\u5206\u6790 <\/span><\/code><code><span class=\"code-snippet_outer\">as.data.table(instance$archive)[<span class=\"code-snippet__number\">1<\/span>:<span class=\"code-snippet__number\">5<\/span>, .(cost, gamma, classif.ce)] <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.2158920539730135\" data-s=\"300,640\" data-type=\"png\" data-w=\"667\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/5_2YI1EYSIMic8WQiawpaewwxddibwYA.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42ibN3XwLuTOVia97FG87Mq0taONG5H2YI1EYSIMic8WQiawpaewwxddibwYA\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u8fd8\u53ef\u4ee5\u8bfb\u53d6\u8d85\u53c2\u6570\u4f18\u5316\u4e2d\u7684\u8c03\u4f18\u65f6\u95f4\u3001\u8b66\u544a\u548c\u9519\u8bef\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">as.data.table(instance$archive)[<span class=\"code-snippet__number\">1<\/span>:<span class=\"code-snippet__number\">5<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> .(timestamp, runtime_learners, errors, warnings)]#\u8fd0\u884c\u65f6\u95f4\u3001\u9519\u8bef\u548c\u8b66\u544a\u8bfb\u53d6 <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.15950334288443171\" data-s=\"300,640\" data-type=\"png\" data-w=\"1047\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/6_IQdA8qxgVYPUrkhm2rKxPLvIS38xVg.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42pbe2BqSsrRB76Hs3YalIqDtyIQdA8qxgVYPUrkhm2rKxPLvIS38xVg\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u540c\u6837\u53ef\u4ee5\u4f7f\u7528mlr3viz\u5bf9\u7ed3\u679c\u8fdb\u884c\u53ef\u89c6\u5316\uff0c\u53ef\u4ee5\u901a\u8fc7\u7f51\u683c\u7684\u989c\u8272\u548c\u6a2a\u7eb5\u5750\u6807\u6765\u89c2\u5bdf\u4e0d\u540c\u53c2\u6570\u7684\u6a21\u578b\u4f18\u52a3\uff1a<\/p>\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u53ef\u89c6\u5316 <\/span><\/code><code><span class=\"code-snippet_outer\">library(mlr3viz) <\/span><\/code><code><span class=\"code-snippet_outer\">autoplot(instance, type = <span class=\"code-snippet__string\">\"surface\"<\/span>) <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.993801652892562\" data-s=\"300,640\" data-type=\"png\" data-w=\"968\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/7_CV82sgwD6RCvEqXuAlXkfiacOCQSLA.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt424llWic2ZAteRbeAXFMibw9qvL14CV82sgwD6RCvEqXuAlXkfiacOCQSLA\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u6700\u540e\uff0c\u5f53\u6211\u4eec\u9009\u62e9\u4e86\u5408\u9002\u7684\u8d85\u53c2\u6570\uff0c\u5c31\u53ef\u4ee5\u7528\u5176\u5bf9\u6211\u4eec\u9700\u8981\u7684\u6570\u636e\u8fdb\u884c\u8bad\u7ec3\uff0c\u6765\u8bad\u7ec3\u6574\u4e2a\u6570\u636e\u7684\u6700\u7ec8\u6a21\u578b\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u53ea\u9700\u4f7f\u7528\u76f8\u540c\u7684\u5e95\u5c42\u7b97\u6cd5\u6784\u9020\u4e00\u4e2a\u65b0\u7684\u5b66\u4e60\u5668\uff0c\u5e76\u5c06\u5b66\u4e60\u5668\u8d85\u53c2\u6570\u8bbe\u7f6e\u4e3a\u6700\u4f73\u914d\u7f6e\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#\u8bad\u7ec3\u4f18\u5316\u540e\u7684\u6a21\u578b <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_svm_tuned = lrn(<span class=\"code-snippet__string\">\"classif.svm\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_svm_tuned$param_set$values = instance$result_learner_param_vals#\u5c06\u4f18\u5316\u540e\u7684\u8d85\u53c2\u6570\u8bfb\u5165\u6211\u4eec\u6240\u4f7f\u7528\u7684\u6a21\u578b\u4e2d <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_svm_tuned$train(tsk_sonar)$model <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.2222222222222222\" data-s=\"300,640\" data-type=\"png\" data-w=\"1080\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/8_PMJa4ia2MuSdXmicvHiaricFMe8n0g.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42rVc6MyHL57mdpa49QGSeB0LGknbrPMJa4ia2MuSdXmicvHiaricFMe8n0g\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 10px;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 76%;vertical-align: top;flex: 0 0 auto;height: auto;align-self: flex-start;\">\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"color: rgb(248, 183, 40);text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-align: center;text-wrap: wrap;\">\u25cf<\/p>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<section style=\"text-align: justify;font-size: 24px;\" powered-by=\"xiumi.us\">\n<p>\u4e09.\u81ea\u52a8\u8c03\u4f18\u65b9\u6cd5<\/p>\n<\/section>\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"display: flex;flex-flow: row;text-align: right;justify-content: flex-end;margin-bottom: 10px;transform: translate3d(28px, 0px, 0px) rotateY(180deg);\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;align-self: center;min-width: 10%;flex: 0 0 auto;height: auto;\">\n<section style=\"text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 16px;height: 16px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(255, 204, 91);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;\">\n<section style=\"text-align: center;margin-top: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 8px;height: 8px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(172, 193, 128);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 100 100 0%;height: auto;\">\n<section style=\"margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(172, 193, 128);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;margin-bottom: 12px;text-wrap: wrap;\">\u5728\u4e0a\u9762\u7684\u8c03\u4f18\u793a\u4f8b\u4e2d\uff0c\u5c0f\u5e08\u59b9\u5e26\u5927\u5bb6\u4f7f\u7528ti()\u51fd\u6570\u5e76\u9009\u62e9\u9700\u8981\u7684\u4f18\u5316\u65b9\u6cd5\u8fdb\u884c\u8d85\u53c2\u6570\u7684\u8c03\u4f18\uff0c\u800c\u518dmlr3tuning\u4e2d\uff0c\u63d0\u4f9b\u4e86\u5bf9\u65b0\u624b\u66f4\u4e3a\u53cb\u597d\u7684\u8c03\u4f18\u65b9\u6cd5\uff0c\u5c0f\u5e08\u59b9\u66f4\u63a8\u8350\u540c\u5b66\u4eec\u5c1d\u8bd5\uff01<\/p>\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u5176\u4e00\u662ftune()\u51fd\u6570\uff0c\u540c\u65f6\uff0c\u5b83\u53ef\u4ee5\u5728\u5185\u90e8\u8bbe\u7f6e\u76f8\u5e94\u7684\u91cd\u91c7\u6837\u65b9\u6cd5\uff0c\u66f4\u4e3a\u51c6\u786e\u5730\u8bc4\u4f30\u6a21\u578b\uff1a<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">tnr_grid_search = tnr(<span class=\"code-snippet__string\">\"grid_search\"<\/span>, resolution = <span class=\"code-snippet__number\">5<\/span>, batch_size = <span class=\"code-snippet__number\">5<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">lrn_svm = lrn(<span class=\"code-snippet__string\">\"classif.svm\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> cost = to_tune(<span class=\"code-snippet__number\">1e-5<\/span>, <span class=\"code-snippet__number\">1e5<\/span>, logscale = TRUE), <\/span><\/code><code><span class=\"code-snippet_outer\"> gamma = to_tune(<span class=\"code-snippet__number\">1e-5<\/span>, <span class=\"code-snippet__number\">1e5<\/span>, logscale = TRUE), <\/span><\/code><code><span class=\"code-snippet_outer\"> kernel = <span class=\"code-snippet__string\">\"radial\"<\/span>, <\/span><\/code><code><span class=\"code-snippet_outer\"> type = <span class=\"code-snippet__string\">\"C-classification\"<\/span> <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><code><span class=\"code-snippet_outer\">rsmp_cv3 = rsmp(<span class=\"code-snippet__string\">\"cv\"<\/span>, folds = <span class=\"code-snippet__number\">3<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">msr_ce = msr(<span class=\"code-snippet__string\">\"classif.ce\"<\/span>) <\/span><\/code><code><span class=\"code-snippet_outer\">instance = tune( <\/span><\/code><code><span class=\"code-snippet_outer\"> tuner = tnr_grid_search, <\/span><\/code><code><span class=\"code-snippet_outer\"> task = tsk_sonar, <\/span><\/code><code><span class=\"code-snippet_outer\"> learner = lrn_svm, <\/span><\/code><code><span class=\"code-snippet_outer\"> resampling = rsmp_cv3, <\/span><\/code><code><span class=\"code-snippet_outer\"> measures = msr_ce <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><code><span class=\"code-snippet_outer\">instance$result <\/span><\/code><\/pre>\n<\/section>\n<section style=\"display: flex;flex-flow: row;margin-bottom: 10px;text-align: left;justify-content: flex-start;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: auto;vertical-align: top;border-left: 1px solid rgb(172, 193, 128);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: flex-start;height: auto;margin-left: 16px;padding: 26px;\">\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u8fd8\u6709\u4e00\u4e2a\u66f4\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u4f7f\u7528auto_tuner()\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u63d0\u524d\u8bbe\u7f6e\uff0c\u7136\u540e\u518d\u8c03\u7528\u6570\u636e\u65f6\uff0c\u81ea\u52a8\u4e3a\u6570\u636e\u63d0\u4f9b\u4e00\u4e2a\u76f8\u5bf9\u6700\u4f18\u7684\u8d85\u53c2\u6570\uff0c\u76f4\u63a5\u4f7f\u7528auto_tuner\u8fd4\u56de\u7684\u5bf9\u8c61\uff0c\u5c31\u53ef\u4ee5\u9488\u5bf9\u7279\u5b9a\u6570\u636e\u96c6\u5206\u522b\u7ed9\u51fa\u5408\u9002\u7684\u8d85\u53c2\u6570\u3002<\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"1.9445945945945946\" data-s=\"300,640\" data-type=\"png\" data-w=\"740\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/9_b0bT7qAmrxK2hOSMSQAcP8Zndz8jqA.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42D0afVpJFXzvwibXoicl7jaNmxWib0bT7qAmrxK2hOSMSQAcP8Zndz8jqA\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<p powered-by=\"xiumi.us\"><br \/><\/p>\n<section class=\"code-snippet__fix code-snippet__js\">\n<ul class=\"code-snippet__line-index code-snippet__js\">\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\">#auto_tuner <\/span><\/code><code><span class=\"code-snippet_outer\">ainst = auto_tuner( <\/span><\/code><code><span class=\"code-snippet_outer\"> tuner = tnr_grid_search, <\/span><\/code><code><span class=\"code-snippet_outer\"> learner = lrn_svm, <\/span><\/code><code><span class=\"code-snippet_outer\"> resampling = rsmp_cv3, <\/span><\/code><code><span class=\"code-snippet_outer\"> measure = msr_ce <\/span><\/code><code><span class=\"code-snippet_outer\">) <\/span><\/code><code><span class=\"code-snippet_outer\">ainst <\/span><\/code><code><span class=\"code-snippet_outer\">split = partition(tsk_sonar) <\/span><\/code><code><span class=\"code-snippet_outer\">ainst$train(tsk_sonar, row_ids = split$train) <\/span><\/code><code><span class=\"code-snippet_outer\">ainst$predict(tsk_sonar, row_ids = split$test)$score() <\/span><\/code><\/pre>\n<\/section>\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\" powered-by=\"xiumi.us\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.13410596026490065\" data-s=\"300,640\" data-type=\"png\" data-w=\"604\" style=\"vertical-align: middle;width: 100%;height: auto !important;\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/10_hKcQica6mqpcpLNtmdRGqEVficU3PQ.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/oCSOtP61aEXuWkcJI9W3hTkaTibAoVt42u8c39iau5r54Y9azaLT36ia49UAnhKcQica6mqpcpLNtmdRGqEVficU3PQ\/640?wx_fmt=png'\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section style=\"text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 10px;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 76%;vertical-align: top;flex: 0 0 auto;height: auto;align-self: flex-start;\">\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"color: rgb(248, 183, 40);text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-align: center;text-wrap: wrap;\">\u25cf<\/p>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(255, 204, 91);background-color: rgb(255, 204, 91);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;margin-right: 8px;\">\n<section style=\"font-size: 19px;margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;border-width: 1px;border-style: solid;border-color: rgb(172, 193, 128);background-color: rgb(172, 193, 128);width: 1.8em;height: 1.8em;line-height: 1.8em;border-radius: 100%;margin-left: auto;margin-right: auto;font-size: 16px;color: rgb(255, 255, 255);\">\n<p><br \/><\/p>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p><br \/><\/p>\n<\/section>\n<section style=\"text-align: justify;\" powered-by=\"xiumi.us\">\n<p style=\"text-indent: 2em;text-wrap: wrap;\">\u4f7f\u7528mlr3tuning\u8fdb\u884c\u8d85\u53c2\u6570\u8c03\u4f18\u7684\u5b66\u4e60\u5c31\u5230\u8fd9\u91cc\u7ed3\u675f\u5566\uff0c\u5c0f\u4f19\u4f34\u4eec\u662f\u5426\u5b66\u4f1a\u4e86\u5462\uff0c\u5e0c\u671b\u8bfe\u4e0b\u5927\u5bb6\u53ef\u4ee5\u6253\u5f00R\u8bed\u8a00\u4e00\u8d77\u7ec3\u4e60\u54e6\u3002\u5c0f\u5e08\u59b9\u8981\u548c\u5927\u5bb6\u8bf4\u518d\u89c1\u54af\uff0c\u4e00\u5b9a\u8981\u81ea\u5df1\u7ec3\u4e60\u4e00\u4e0b\u54e6\uff0c\u540c\u65f6\u5982\u679c\u5927\u5bb6\u60f3\u8981\u7ee7\u7eed\u4e86\u89e3\u66f4\u591a\u6709\u5173R\u8bed\u8a00\u5185\u5bb9\u53ef\u4ee5\u6301\u7eed\u5173\u6ce8\u5c0f\u5e08\u59b9\u54e6\uff5e\uff5e\u6216\u8005\u4e5f\u53ef\u4ee5\u5173\u6ce8\u6211\u4eec\u7684\u5b98\u7f51\u4e5f\u4f1a\u6301\u7eed\u66f4\u65b0\u7684\u54e6\uff5e http:\/\/www.biocloudservice.com\/home.html<\/p>\n<\/section>\n<section style=\"transform: perspective(0px);transform-style: flat;\" powered-by=\"xiumi.us\">\n<section style=\"display: flex;flex-flow: row;text-align: right;justify-content: flex-end;margin-bottom: 10px;transform: translate3d(28px, 0px, 0px) rotateY(180deg);\">\n<section style=\"display: inline-block;vertical-align: middle;width: auto;align-self: center;min-width: 10%;flex: 0 0 auto;height: auto;\">\n<section style=\"text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 16px;height: 16px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(255, 204, 91);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: middle;width: auto;min-width: 10%;flex: 0 0 auto;height: auto;align-self: center;\">\n<section style=\"text-align: center;margin-top: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 8px;height: 8px;vertical-align: top;overflow: hidden;border-width: 0px;border-radius: 205px;border-style: none;border-color: rgb(62, 62, 62);background-color: rgb(172, 193, 128);\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: bottom;width: auto;align-self: flex-end;flex: 100 100 0%;height: auto;\">\n<section style=\"margin-right: 0%;margin-left: 0%;text-align: center;\" powered-by=\"xiumi.us\">\n<section style=\"background-color: rgb(172, 193, 128);height: 1px;\"><svg viewbox=\"0 0 1 1\" style=\"float:left;line-height:0;width:0;vertical-align:top;\"><\/svg><\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<\/section>\n<p style=\"text-indent: 2em;text-wrap: wrap;\" powered-by=\"xiumi.us\">\u4f7f\u7528mlr3tuning\u8fdb\u884c\u8d85\u53c2\u6570\u8c03\u4f18\u7684\u5b66\u4e60\u5c31\u5230\u8fd9\u91cc\u7ed3\u675f\u5566\uff0c\u5c0f\u4f19\u4f34\u4eec\u662f\u5426\u5b66\u4f1a\u4e86\u5462\uff0c\u5e0c\u671b\u8bfe\u4e0b\u5927\u5bb6\u53ef\u4ee5\u6253\u5f00R\u8bed\u8a00\u4e00\u8d77\u7ec3\u4e60\u54e6\u3002\u5c0f\u5e08\u59b9\u8981\u548c\u5927\u5bb6\u8bf4\u518d\u89c1\u54af\uff0c\u4e00\u5b9a\u8981\u81ea\u5df1\u7ec3\u4e60\u4e00\u4e0b\u54e6\uff0c\u540c\u65f6\u5982\u679c\u5927\u5bb6\u60f3\u8981\u7ee7\u7eed\u4e86\u89e3\u66f4\u591a\u6709\u5173R\u8bed\u8a00\u5185\u5bb9\u53ef\u4ee5\u6301\u7eed\u5173\u6ce8\u5c0f\u5e08\u59b9\u54e6\uff5e\uff5e\u6216\u8005\u4e5f\u53ef\u4ee5\u5173\u6ce8\u6211\u4eec\u7684\u5b98\u7f51\u4e5f\u4f1a\u6301\u7eed\u66f4\u65b0\u7684\u54e6\uff5e http:\/\/www.biocloudservice.com\/home.html<\/p>\n<\/section>\n<p style=\"margin-bottom: 24px;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"0.5555555555555556\" data-s=\"300,640\" 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