{"id":55459,"date":"2024-06-16T16:53:12","date_gmt":"2024-06-16T08:53:12","guid":{"rendered":"http:\/\/www.biocloudservice.com\/wordpress\/?p=55459"},"modified":"2024-06-16T16:53:12","modified_gmt":"2024-06-16T08:53:12","slug":"%e6%9c%aa%e6%9d%a5%e6%97%a9%e7%9f%a5%e9%81%93%ef%bc%9a%e7%94%a8keras%e7%9a%84%e6%b7%b1%e5%ba%a6%e5%ad%a6%e4%b9%a0%e9%a2%84%e6%b5%8b%e7%96%be%e7%97%85-2","status":"publish","type":"post","link":"http:\/\/www.biocloudservice.com\/wordpress\/?p=55459","title":{"rendered":"\u672a\u6765\u65e9\u77e5\u9053\uff1a\u7528Keras\u7684\u6df1\u5ea6\u5b66\u4e60\u9884\u6d4b\u75be\u75c5"},"content":{"rendered":"


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style=\"font-size: 17px;color: rgb(255, 255, 255);text-align: right;letter-spacing: 4px;\" powered-by=\"xiumi.us\">\n<p><strong>\u70b9\u51fb\u84dd\u5b57<\/strong><\/p>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: top;width: auto;border-left: 4px solid rgb(242, 183, 183);border-bottom-left-radius: 0px;flex: 100 100 0%;align-self: stretch;height: auto;padding: 3px 10px;background-color: rgba(254, 245, 240, 0.8);\">\n<section style=\"color: rgb(181, 126, 121);font-size: 17px;letter-spacing: 4px;\" powered-by=\"xiumi.us\">\n<p><strong>\u5173\u6ce8\u5c0f\u56fe<\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section powered-by=\"xiumi.us\">\n<p style=\"text-indent: 0em;white-space: 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style=\"text-indent: 2em;white-space: normal;\"><br \/><\/p>\n<p style=\"text-indent: 0em;white-space: normal;\"><span style=\"color: rgb(62, 62, 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style=\"text-indent: 0em;white-space: normal;\"><br \/><\/p>\n<p style=\"text-indent: 0em;white-space: 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style=\"text-indent: 0em;white-space: normal;\">\u6700\u9177\u7684\u662f\uff0cKeras\u4e0d\u4ec5\u6613\u4e8e\u4f7f\u7528\uff0c\u800c\u4e14\u8fd8\u6709\u4e00\u4e2a\u5e9e\u5927\u7684\u793e\u533a\u652f\u6301\u3002\u4f60\u53ef\u4ee5\u5728\u793e\u533a\u91cc\u627e\u5230\u5404\u79cd\u5404\u6837\u7684\u4f8b\u5b50\u548c\u5e2e\u52a9\u3002\u8fd8\u6709\u5f88\u591a\u6709\u8da3\u7684\u6559\u7a0b\u548c\u535a\u5ba2\uff0c\u53ef\u4ee5\u8ba9\u4f60\u5728\u6df1\u5ea6\u5b66\u4e60\u7684\u4e16\u754c\u91cc\u7545\u6e38\u3002<\/p>\n<\/section>\n<p style=\"white-space: normal;\" powered-by=\"xiumi.us\"><br \/><\/p>\n<section powered-by=\"xiumi.us\">\n<p style=\"white-space: normal;\">\u603b\u800c\u8a00\u4e4b\uff0cKeras\u5c31\u662f\u4e00\u4e2a\u9177\u70ab\u5b9e\u7528\u7684\u6df1\u5ea6\u5b66\u4e60\u5de5\u5177\uff0c\u5e2e\u52a9\u4f60\u6784\u5efa\u5f3a\u5927\u7684\u795e\u7ecf\u7f51\u7edc\u3002\u4e0d\u7ba1\u4f60\u662f\u6df1\u5ea6\u5b66\u4e60\u65b0\u624b\u8fd8\u662f\u9ad8\u624b\uff0cKeras\u90fd\u662f\u4f60\u7684\u597d\u670b\u53cb\uff0c\u8ba9\u4f60\u8f7b\u677e\u6109\u5feb\u5730\u63a2\u7d22\u6df1\u5ea6\u5b66\u4e60\u7684\u5947\u5999\u4e16\u754c\uff01<\/p>\n<p style=\"white-space: normal;\"><br \/><\/p>\n<p style=\"white-space: normal;\"><strong>Keras\u4e3b\u9875<\/strong><\/p>\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=\"0.7066929133858267\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/1_Ejyw6f5foUBwXkbsW3UpgdOiaDK5RQ-3.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomJwWdq4gEJORSHQMEPiappd6icI4Ejyw6f5foUBwXkbsW3UpgdOiaDK5RQ\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"1016\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section powered-by=\"xiumi.us\">\n<p style=\"white-space: normal;\"><br \/><\/p>\n<p style=\"white-space: normal;\">\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528R\u5305keras\u8fdb\u884c\u7cd6\u5c3f\u75c5\u9884\u6d4b\u6a21\u578b\u7684\u8bad\u7ec3\u548c\u8bc4\u4f30\uff1a<\/p>\n<p style=\"white-space: normal;\">\u4ee3\u7801\u5177\u4f53\u5305\u62ec\uff1a<\/p>\n<p style=\"white-space: normal;\"><br \/><\/p>\n<\/section>\n<section style=\"display: flex;flex-flow: row;text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomjDcNVDiacSntTHDicUU3LBJunzSFcMJLJUPwvz77ibQWolaCF1ItWxMuw\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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: top;width: auto;flex: 0 0 auto;align-self: stretch;min-width: 10%;height: auto;background-color: rgb(254, 227, 229);box-shadow: rgb(0, 0, 0) 0px 0px 0px;\">\n<section style=\"margin-right: 0%;margin-left: 0%;\" powered-by=\"xiumi.us\">\n<section style=\"color: rgb(84, 54, 54);padding-right: 10px;padding-left: 10px;text-align: justify;font-size: 17px;letter-spacing: 3px;\">\n<p style=\"white-space: normal;\"><strong>Step1 \u5bfc\u5165\u6570\u636e\u96c6\u4ee5\u53ca\u6570\u636e\u9884\u5904\u7406<\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomE90kgynZCsnpmLxlnTmG89bEDRXQe7nUdyH34HsF9cwzjGdicWE19Pg\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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 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<li><\/li>\n<li><\/li>\n<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\"># \u8fd9\u91cc\u7684<span class=\"code-snippet__string\">\"inputdata.txt\"<\/span>\u662f\u81ea\u884c\u51c6\u5907\u7684\u672c\u5730\u6587\u4ef6\uff0c\u5c0f\u56fe\u7ed9\u5927\u5bb6\u9644\u5728\u6700\u540e\u3002<\/span><\/code><code><span class=\"code-snippet_outer\"># <span class=\"code-snippet__number\">1.<\/span>\u5bfc\u5165\u6570\u636e\u96c6\u4ee5\u53ca\u6570\u636e\u9884\u5904\u7406<\/span><\/code><code><span class=\"code-snippet_outer\"># \u5b89\u88c5\u548c\u52a0\u8f7d\u6240\u9700\u7684\u5e93<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__meta\"># install.packages(<span class=\"code-snippet__meta-string\">\"keras\"<\/span>)<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">library(keras)<\/span><\/code><code><span class=\"code-snippet_outer\"><br \/><\/span><\/code><code><span class=\"code-snippet_outer\"># \u5bfc\u5165\u6570\u636e\u96c6<\/span><\/code><code><span class=\"code-snippet_outer\">data <- read.table(file = <span class=\"code-snippet__string\">\"D:\/wanglab\/life\/ziyuan\/20230628\/inputdata.txt\"<\/span>,header = T)  # \u66ff\u6362\u4e3a\u5b9e\u9645\u6570\u636e\u96c6\u6587\u4ef6\u7684\u8def\u5f84<\/span><\/code><code><span class=\"code-snippet_outer\"># \u6570\u636e\u9884\u5904\u7406<\/span><\/code><code><span class=\"code-snippet_outer\"># \u6570\u636e\u6807\u51c6\u5316<\/span><\/code><code><span class=\"code-snippet_outer\">data[, <span class=\"code-snippet__number\">1<\/span>:<span class=\"code-snippet__number\">8<\/span>] <- scale(data[, <span class=\"code-snippet__number\">1<\/span>:<span class=\"code-snippet__number\">8<\/span>])<\/span><\/code><code><span class=\"code-snippet_outer\"># \u5c06\u76ee\u6807\u53d8\u91cf\u8f6c\u6362\u4e3a\u56e0\u5b50<\/span><\/code><code><span class=\"code-snippet_outer\">data$diabetes <- as.factor(data$diabetes)<\/span><\/code><code><span class=\"code-snippet_outer\"><br \/><\/span><\/code><code><span class=\"code-snippet_outer\"># \u5212\u5206\u6570\u636e\u96c6\u4e3a\u8bad\u7ec3\u96c6\u548c\u6d4b\u8bd5\u96c6<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__built_in\">set<\/span>.seed(<span class=\"code-snippet__number\">123<\/span>)  # \u8bbe\u7f6e\u968f\u673a\u79cd\u5b50\uff0c\u4fdd\u8bc1\u7ed3\u679c\u53ef\u590d\u73b0<\/span><\/code><code><span class=\"code-snippet_outer\">indices <- sample(<span class=\"code-snippet__number\">1<\/span>:nrow(data), nrow(data)*<span class=\"code-snippet__number\">0.8<\/span>)  # <span class=\"code-snippet__number\">80<\/span>%\u7684\u6570\u636e\u7528\u4e8e\u8bad\u7ec3\uff0c<span class=\"code-snippet__number\">20<\/span>%\u7684\u6570\u636e\u7528\u4e8e\u6d4b\u8bd5<\/span><\/code><code><span class=\"code-snippet_outer\">train_data <- data[indices, ]<\/span><\/code><code><span class=\"code-snippet_outer\">test_data <- data[-indices, ]<\/span><\/code><\/pre>\n<\/section>\n<p style=\"white-space: normal;\" powered-by=\"xiumi.us\"><br \/><\/p>\n<section style=\"display: flex;flex-flow: row;text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomjDcNVDiacSntTHDicUU3LBJunzSFcMJLJUPwvz77ibQWolaCF1ItWxMuw\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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: top;width: auto;flex: 0 0 auto;align-self: stretch;min-width: 10%;height: auto;background-color: rgb(254, 227, 229);box-shadow: rgb(0, 0, 0) 0px 0px 0px;\">\n<section style=\"margin-right: 0%;margin-left: 0%;\" powered-by=\"xiumi.us\">\n<section style=\"color: rgb(84, 54, 54);padding-right: 10px;padding-left: 10px;text-align: justify;font-size: 17px;letter-spacing: 3px;\">\n<p style=\"white-space: normal;\"><strong>Step2\u521b\u5efa\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b<\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomE90kgynZCsnpmLxlnTmG89bEDRXQe7nUdyH34HsF9cwzjGdicWE19Pg\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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 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\"># <span class=\"code-snippet__number\">2.<\/span>\u521b\u5efa\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b<\/span><\/code><code><span class=\"code-snippet_outer\">model <- keras_model_sequential()  # \u521b\u5efa\u5e8f\u8d2f\u6a21\u578b<\/span><\/code><code><span class=\"code-snippet_outer\">model %>% <\/span><\/code><code><span class=\"code-snippet_outer\">  layer_dense(units = <span class=\"code-snippet__number\">32<\/span>, activation = <span class=\"code-snippet__string\">\"relu\"<\/span>, input_shape = <span class=\"code-snippet__number\">8<\/span>) %>%  # \u6dfb\u52a0\u4e00\u4e2a\u5168\u8fde\u63a5\u5c42\uff0c\u5305\u542b<span class=\"code-snippet__number\">32<\/span>\u4e2a\u795e\u7ecf\u5143\uff0c\u4f7f\u7528ReLU\u6fc0\u6d3b\u51fd\u6570<\/span><\/code><code><span class=\"code-snippet_outer\">  layer_dense(units = <span class=\"code-snippet__number\">16<\/span>, activation = <span class=\"code-snippet__string\">\"relu\"<\/span>) %>%  # \u6dfb\u52a0\u7b2c\u4e8c\u4e2a\u5168\u8fde\u63a5\u5c42\uff0c\u5305\u542b<span class=\"code-snippet__number\">16<\/span>\u4e2a\u795e\u7ecf\u5143\uff0c\u4f7f\u7528ReLU\u6fc0\u6d3b\u51fd\u6570<\/span><\/code><code><span class=\"code-snippet_outer\">  layer_dense(units = <span class=\"code-snippet__number\">1<\/span>, activation = <span class=\"code-snippet__string\">\"sigmoid\"<\/span>)  # \u6dfb\u52a0\u8f93\u51fa\u5c42\uff0c\u4f7f\u7528Sigmoid\u6fc0\u6d3b\u51fd\u6570\uff0c\u8f93\u51fa\u4e3a\u4e8c\u8fdb\u5236\u5206\u7c7b\u7ed3\u679c<\/span><\/code><\/pre>\n<\/section>\n<p style=\"white-space: normal;\" powered-by=\"xiumi.us\"><br \/><\/p>\n<section style=\"display: flex;flex-flow: row;text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomjDcNVDiacSntTHDicUU3LBJunzSFcMJLJUPwvz77ibQWolaCF1ItWxMuw\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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: top;width: auto;flex: 0 0 auto;align-self: stretch;min-width: 10%;height: auto;background-color: rgb(254, 227, 229);box-shadow: rgb(0, 0, 0) 0px 0px 0px;\">\n<section style=\"margin-right: 0%;margin-left: 0%;\" powered-by=\"xiumi.us\">\n<section style=\"color: rgb(84, 54, 54);padding-right: 10px;padding-left: 10px;text-align: justify;font-size: 17px;letter-spacing: 3px;\">\n<p style=\"white-space: normal;\"><strong>Step3\u7f16\u8bd1\u6a21\u578b<\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomE90kgynZCsnpmLxlnTmG89bEDRXQe7nUdyH34HsF9cwzjGdicWE19Pg\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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 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\"># <span class=\"code-snippet__number\">3.<\/span>\u7f16\u8bd1\u6a21\u578b<\/span><\/code><code><span class=\"code-snippet_outer\">model %>% compile(<\/span><\/code><code><span class=\"code-snippet_outer\">  loss = <span class=\"code-snippet__string\">\"binary_crossentropy\"<\/span>,  # \u4f7f\u7528\u4e8c\u5143\u4ea4\u53c9\u71b5\u4f5c\u4e3a\u635f\u5931\u51fd\u6570<\/span><\/code><code><span class=\"code-snippet_outer\">  optimizer = <span class=\"code-snippet__string\">\"adam\"<\/span>,  # \u4f7f\u7528Adam\u4f18\u5316\u5668\u8fdb\u884c\u53c2\u6570\u4f18\u5316<\/span><\/code><code><span class=\"code-snippet_outer\">  metrics = c(<span class=\"code-snippet__string\">\"accuracy\"<\/span>)  # \u6307\u5b9a\u8bc4\u4f30\u6307\u6807\u4e3a\u51c6\u786e\u7387<\/span><\/code><code><span class=\"code-snippet_outer\">)<\/span><\/code><\/pre>\n<\/section>\n<p style=\"white-space: normal;\" powered-by=\"xiumi.us\"><br \/><\/p>\n<section style=\"display: flex;flex-flow: row;text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomjDcNVDiacSntTHDicUU3LBJunzSFcMJLJUPwvz77ibQWolaCF1ItWxMuw\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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: top;width: auto;flex: 0 0 auto;align-self: stretch;min-width: 10%;height: auto;background-color: rgb(254, 227, 229);box-shadow: rgb(0, 0, 0) 0px 0px 0px;\">\n<section style=\"margin-right: 0%;margin-left: 0%;\" powered-by=\"xiumi.us\">\n<section style=\"color: rgb(84, 54, 54);padding-right: 10px;padding-left: 10px;text-align: justify;font-size: 17px;letter-spacing: 3px;\">\n<p style=\"white-space: normal;\"><strong>Step4\u8bad\u7ec3\u6a21\u578b<\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomE90kgynZCsnpmLxlnTmG89bEDRXQe7nUdyH34HsF9cwzjGdicWE19Pg\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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 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<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\"># <span class=\"code-snippet__number\">4.<\/span>\u8bad\u7ec3\u6a21\u578b<\/span><\/code><code><span class=\"code-snippet_outer\">history <- model %>% fit(<\/span><\/code><code><span class=\"code-snippet_outer\">  x = as.matrix(train_data[, <span class=\"code-snippet__number\">1<\/span>:<span class=\"code-snippet__number\">8<\/span>]),  # \u8f93\u5165\u7279\u5f81<\/span><\/code><code><span class=\"code-snippet_outer\">  y = as.numeric(train_data$diabetes) - <span class=\"code-snippet__number\">1<\/span>,  # \u76ee\u6807\u53d8\u91cf\uff08\u5c06\u56e0\u5b50\u8f6c\u6362\u4e3a\u6570\u503c\uff09<\/span><\/code><code><span class=\"code-snippet_outer\">  epochs = <span class=\"code-snippet__number\">10<\/span>,  # \u8fed\u4ee3\u6b21\u6570<\/span><\/code><code><span class=\"code-snippet_outer\">  batch_size = <span class=\"code-snippet__number\">32<\/span>,  # \u6279\u5904\u7406\u5927\u5c0f<\/span><\/code><code><span class=\"code-snippet_outer\">  validation_split = <span class=\"code-snippet__number\">0.2<\/span>  # \u5c06\u8bad\u7ec3\u96c6\u7684<span class=\"code-snippet__number\">20<\/span>%\u7528\u4e8e\u9a8c\u8bc1<\/span><\/code><code><span class=\"code-snippet_outer\">)<\/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=\"0.4626218851570964\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/2_qqcGQuEvqzJyFKrjmwliaUZBIUChLA-3.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomGyXE5gjkIZP9LgVS12ZPU3u64qqcGQuEvqzJyFKrjmwliaUZBIUChLA\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"923\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<p style=\"white-space: normal;\" powered-by=\"xiumi.us\"><br \/><\/p>\n<section style=\"display: flex;flex-flow: row;text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomjDcNVDiacSntTHDicUU3LBJunzSFcMJLJUPwvz77ibQWolaCF1ItWxMuw\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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: top;width: auto;flex: 0 0 auto;align-self: stretch;min-width: 10%;height: auto;background-color: rgb(254, 227, 229);box-shadow: rgb(0, 0, 0) 0px 0px 0px;\">\n<section style=\"margin-right: 0%;margin-left: 0%;\" powered-by=\"xiumi.us\">\n<section style=\"color: rgb(84, 54, 54);padding-right: 10px;padding-left: 10px;text-align: justify;font-size: 17px;letter-spacing: 3px;\">\n<p style=\"white-space: normal;\"><strong>Step5\u8bc4\u4f30\u6a21\u578b<\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomE90kgynZCsnpmLxlnTmG89bEDRXQe7nUdyH34HsF9cwzjGdicWE19Pg\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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 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<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\"># <span class=\"code-snippet__number\">5.<\/span>\u8bc4\u4f30\u6a21\u578b<\/span><\/code><code><span class=\"code-snippet_outer\">eval <- model %>% evaluate(<\/span><\/code><code><span class=\"code-snippet_outer\">  x = as.matrix(test_data[, <span class=\"code-snippet__number\">1<\/span>:<span class=\"code-snippet__number\">8<\/span>]),  # \u6d4b\u8bd5\u96c6\u7684\u8f93\u5165\u7279\u5f81<\/span><\/code><code><span class=\"code-snippet_outer\">  y = as.numeric(test_data$diabetes) - <span class=\"code-snippet__number\">1<\/span>,  # \u6d4b\u8bd5\u96c6\u7684\u76ee\u6807\u53d8\u91cf\uff08\u5c06\u56e0\u5b50\u8f6c\u6362\u4e3a\u6570\u503c\uff09<\/span><\/code><code><span class=\"code-snippet_outer\">  verbose = <span class=\"code-snippet__number\">0<\/span>  # \u4e0d\u663e\u793a\u8be6\u7ec6\u4fe1\u606f<\/span><\/code><code><span class=\"code-snippet_outer\">)<\/span><\/code><code><span class=\"code-snippet_outer\">cat(<span class=\"code-snippet__string\">\"Test Accuracy:\"<\/span>, eval, <span class=\"code-snippet__string\">\"n\"<\/span>)<\/span><\/code><code><span class=\"code-snippet_outer\">eval[<span class=\"code-snippet__number\">2<\/span>]<\/span><\/code><code><span class=\"code-snippet_outer\"># \u7ed8\u5236\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\u7684\u51c6\u786e\u7387\u548c\u635f\u5931\u53d8\u5316\u66f2\u7ebf<\/span><\/code><code><span class=\"code-snippet_outer\">plot(history)<\/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=\"1\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/3_NRIgaqkdzic4fzPsVvxFocyeOKOQ8Q-3.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUom1syDkhMVFMke38VebmWQ8TTc6NRIgaqkdzic4fzPsVvxFocyeOKOQ8Q\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"664\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/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;\"><br \/><\/section>\n<\/section>\n<section style=\"display: flex;flex-flow: row;text-align: center;justify-content: center;margin-top: 10px;margin-bottom: 20px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomjDcNVDiacSntTHDicUU3LBJunzSFcMJLJUPwvz77ibQWolaCF1ItWxMuw\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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: top;width: auto;flex: 0 0 auto;align-self: stretch;min-width: 10%;height: auto;background-color: rgb(254, 227, 229);box-shadow: rgb(0, 0, 0) 0px 0px 0px;\">\n<section style=\"margin-right: 0%;margin-left: 0%;\" powered-by=\"xiumi.us\">\n<section style=\"color: rgb(84, 54, 54);padding-right: 10px;padding-left: 10px;text-align: justify;font-size: 17px;letter-spacing: 3px;\">\n<p style=\"white-space: normal;\"><strong>Step6\u7ed8\u5236AUC\u66f2\u7ebf<\/strong><\/p>\n<\/section>\n<\/section>\n<\/section>\n<section style=\"display: inline-block;vertical-align: top;width: auto;flex: 0 0 0%;align-self: stretch;height: auto;background-position: 0% 0%;background-repeat: repeat-y;background-size: 100%;background-attachment: scroll;background-image: url("https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomE90kgynZCsnpmLxlnTmG89bEDRXQe7nUdyH34HsF9cwzjGdicWE19Pg\/640?wx_fmt=png");\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 5px;height: 10px;vertical-align: top;overflow: hidden;\"><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 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<\/ul>\n<pre class=\"code-snippet__js\" data-lang=\"c\"><code><span class=\"code-snippet_outer\"># \u9884\u6d4b\u6982\u7387<\/span><\/code><code><span class=\"code-snippet_outer\">predictions <- model %>% predict(as.matrix(test_data[, <span class=\"code-snippet__number\">1<\/span>:<span class=\"code-snippet__number\">8<\/span>]))<\/span><\/code><code><span class=\"code-snippet_outer\">predicted_classes <- ifelse(predictions > <span class=\"code-snippet__number\">0.5<\/span>, <span class=\"code-snippet__number\">1<\/span>, <span class=\"code-snippet__number\">0<\/span>)  # \u5c06\u6982\u7387\u8f6c\u6362\u4e3a\u7c7b\u522b\u9884\u6d4b\uff08\u5927\u4e8e<span class=\"code-snippet__number\">0.5<\/span>\u4e3a\u6b63\u7c7b\uff0c\u5426\u5219\u4e3a\u8d1f\u7c7b\uff09<\/span><\/code><code><span class=\"code-snippet_outer\"># \u8ba1\u7b97<span class=\"code-snippet__function\">AUC<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__title\">library<\/span><span class=\"code-snippet__params\">(pROC)<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">roc_obj <- <span class=\"code-snippet__title\">roc<\/span><span class=\"code-snippet__params\">(test_data$diabetes, predictions)<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">auc_value <- <span class=\"code-snippet__title\">auc<\/span><span class=\"code-snippet__params\">(roc_obj)<\/span><\/span><\/code><code><span class=\"code-snippet_outer\"># \u7ed8\u5236AUC\u66f2\u7ebf<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__title\">plot<\/span><span class=\"code-snippet__params\">(roc_obj, main = <span class=\"code-snippet__string\">\"ROC Curve\"<\/span>)<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">text(<span class=\"code-snippet__number\">0.5<\/span>, <span class=\"code-snippet__number\">0.3<\/span>, paste0(<span class=\"code-snippet__string\">\"AUC = \"<\/span>, round(auc_value, <span class=\"code-snippet__number\">3<\/span>)), col = <span class=\"code-snippet__string\">\"red\"<\/span>, cex = <span class=\"code-snippet__number\">1.2<\/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=\"1\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/4_fLqWvRiatkUcfFkKfZicNicOOnwbdA-3.png?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomDgFafDq0Ediam2lAYP9vTUHjI4jvfLqWvRiatkUcfFkKfZicNicOOnwbdA\/640?wx_fmt=png'\" data-type=\"png\" data-w=\"664\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" \/><\/section>\n<\/section>\n<section powered-by=\"xiumi.us\">\n<p style=\"white-space: normal;\"><strong style=\"color: rgb(110, 75, 36);\">\u6ce8\uff1a<\/strong><br \/><\/p>\n<p style=\"white-space: normal;\"># \u8bf7\u786e\u4fdd\u5c06\u8def\u5f84”inputdata.txt”\u66ff\u6362\u4e3a\u5b9e\u9645\u6570\u636e\u96c6\u6587\u4ef6\u7684\u8def\u5f84\uff0c\u5e76\u6839\u636e\u9700\u8981\u8c03\u6574\u6a21\u578b\u53c2\u6570\u548c\u5176\u4ed6\u914d\u7f6e\u3002<\/p>\n<p style=\"white-space: normal;\"># \u5728\u7ed8\u5236AUC\u66f2\u7ebf\u4e4b\u524d\uff0c\u786e\u4fdd\u60a8\u7684\u6a21\u578b\u8f93\u51fa\u7684\u662f\u9884\u6d4b\u7684\u6982\u7387\u503c\uff0c\u800c\u4e0d\u662f\u7c7b\u522b\u6807\u7b7e\u3002<\/p>\n<p style=\"white-space: normal;\"><br \/><\/p>\n<\/section>\n<p style=\"text-indent: 0em;white-space: normal;\" powered-by=\"xiumi.us\">\u5389\u5bb3\u5427\uff0c\u6df1\u5ea6\u5b66\u4e60\u5728R\u8bed\u8a00\u4e2d\u7684\u5b9e\u73b0\u975e\u5e38\u7b80\u5355\u3002\u6211\u4eec\u4f7f\u7528\u7684\u90fd\u662f\u5165\u95e8\u7ea7\u51fd\u6570\uff0c\u53ea\u9700\u5bf9R\u8bed\u8a00\u6709\u4e00\u5b9a\u4e86\u89e3\uff0c\u5c31\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u5566\u3002<\/p>\n<p style=\"white-space: normal;\" powered-by=\"xiumi.us\"><br \/><\/p>\n<section style=\"text-align: left;justify-content: flex-start;display: flex;flex-flow: row;margin-bottom: 10px;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;border-style: solid;border-width: 1px;border-color: rgb(176, 176, 176);padding: 7px;\">\n<section style=\"justify-content: flex-start;display: flex;flex-flow: row;\" powered-by=\"xiumi.us\">\n<section style=\"display: inline-block;width: 100%;vertical-align: top;align-self: flex-start;flex: 0 0 auto;background-color: rgba(249, 238, 237, 0.5);padding: 18px;\">\n<section style=\"\" powered-by=\"xiumi.us\">\n<section style=\"text-align: justify;font-size: 14px;\">\n<p style=\"white-space: normal;\">\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u8981\u4f7f\u7528\u6df1\u5ea6\u5b66\u4e60\u8fdb\u884c\u5206\u6790\uff0c\u5e76\u4e14\u7279\u5f81\u503c\u8f83\u591a\uff0c\u53ef\u80fd\u9700\u8981\u5927\u91cf\u7684\u5185\u5b58\u3002\u5728\u672c\u5730\u7535\u8111\u4e0a\u4f1a\u9762\u4e34\u5185\u5b58\u4e0d\u8db3\u7684\u95ee\u9898\u3002\u56e0\u6b64\uff0c\u5efa\u8bae\u4f7f\u7528\u670d\u52a1\u5668\u8fdb\u884c\u5206\u6790\u3002\u7136\u800c\uff0c\u79df\u7528\u670d\u52a1\u5668\u7684\u8d39\u7528\u53ef\u80fd\u8f83\u9ad8\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u5efa\u8bae\u4f7f\u7528\u6211\u4eec\u7684\u4e91\u751f\u4fe1\u5e73\u53f0\uff0c\u8be5\u5e73\u53f0\u63d0\u4f9b\u5f3a\u5927\u7684\u8ba1\u7b97\u8d44\u6e90\u548c\u6df1\u5ea6\u5b66\u4e60\u5de5\u5177\u3002\u60a8\u53ef\u4ee5\u8bbf\u95ee\u6211\u4eec\u7684\u4e91\u751f\u4fe1\u5e73\u53f0\uff0c\u94fe\u63a5\u4e3a\uff1ahttp:\/\/www.biocloudservice.com\/home.html\u3002<\/p>\n<p style=\"white-space: normal;\"><br \/><\/p>\n<p style=\"white-space: normal;\">\u6b22\u8fce\u4f7f\u7528\uff1a\u4e91\u751f\u4fe1\u5e73\u53f0 ( http:\/\/www.biocloudservice.com\/home.html)<\/p>\n<\/section>\n<\/section>\n<section style=\"transform: scale(0.5);transform-origin: center center;margin-top: -65px;margin-bottom: -65px;\" powered-by=\"xiumi.us\">\n<section style=\"text-align: center;margin-top: 10px;margin-bottom: 10px;line-height: 0;\">\n<section style=\"vertical-align: middle;display: inline-block;line-height: 0;\"><img decoding=\"async\" class=\"rich_pages wxw-img\" data-ratio=\"1\" data-s=\"300,640\" src=\"https:\/\/i0.wp.com\/www.biocloudservice.com\/wordpress\/wp-content\/uploads\/2024\/06\/5_K5iappeibzCgTsZRGSk8Tb8wcH9NNA-3.jpg?w=640\" onerror=\"this.src='https:\/\/mmbiz.qpic.cn\/sz_mmbiz_jpg\/2wJ7bWfS0QvFUqElClw2rZ4A296CFUomNVZHmuz4LS2qALhFrsyn0fzBnLK5iappeibzCgTsZRGSk8Tb8wcH9NNA\/640?wx_fmt=jpeg'\" data-type=\"jpeg\" data-w=\"258\" style=\"vertical-align: middle;width: 100%;\" data-recalc-dims=\"1\" 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