{"id":246,"date":"2020-01-24T15:32:31","date_gmt":"2020-01-24T06:32:31","guid":{"rendered":"http:\/\/aiacademy.jp\/media\/?p=246"},"modified":"2024-08-08T16:29:55","modified_gmt":"2024-08-08T07:29:55","slug":"%e3%83%ad%e3%82%b8%e3%82%b9%e3%83%86%e3%82%a3%e3%83%83%e3%82%af%e5%9b%9e%e5%b8%b0%e3%81%a8%e3%81%af","status":"publish","type":"post","link":"https:\/\/aiacademy.jp\/media\/?p=246","title":{"rendered":"\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u3068\u306f"},"content":{"rendered":"<div id=\"sgb-css-id-1\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-font-size is-style-fill has-medium-font-size\"><a class=\"wp-block-button__link has-vivid-green-cyan-background-color has-background wp-element-button\" href=\"https:\/\/lin.ee\/3E4GzWk\" rel=\"nofollow noopener\" target=\"_blank\">LINE\u53cb\u3060\u3061\u767b\u9332 \u25b6 \u6a5f\u68b0\u5b66\u7fd2\u30b3\u30fc\u30b9 \u25b6 \u53d7\u8b1b\u5272\u5f15\u30af\u30fc\u30dd\u30f3 \u7121\u6599\u52d5\u753b<\/a><\/div>\n<\/div>\n<\/div>\n\n<div class=\"toc\">    <div id=\"toc_container\" class=\"sgb-toc--no-bullets js-smooth-scroll\" data-dialog-title=\"Table of Contents\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">\u306f\u3058\u3081\u306b<\/a>  <\/li>  <li>    <a href=\"#i-1\">\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30<\/a>  <\/li>  <li>    <a href=\"#i-2\">\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306e\u6d3b\u7528\u4f8b<\/a>  <\/li>  <li>    <a href=\"#i-3\">\u5206\u6790\u30a4\u30e1\u30fc\u30b8<\/a>  <\/li>  <li>    <a href=\"#i-4\">\u5b9f\u88c5<\/a>  <\/li>  <li>    <a href=\"#i-5\">\u307e\u3068\u3081<\/a>  <\/li>  <li class=\"last\">    <a href=\"#i-6\">\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u95a2\u6570\u3084\u30aa\u30c3\u30ba\u3001\u30aa\u30c3\u30ba\u6bd4\u3001\u5bfe\u6570\u30aa\u30c3\u30ba\u306a\u3069\u306b\u95a2\u3057\u3066<\/a>  <\/li><\/ul>\n      \n    <\/div><\/div><div class=\"toc\"><p><\/p>\n<\/div><h2 id=\"i-0\">\u306f\u3058\u3081\u306b<\/h2>\n<p>\u3053\u306e\u7ae0\u3067\u306f\u3001\u7c21\u5358\u306b\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306e\u8aac\u660e\u3068\u3001Scikit-learn\u3067\u6271\u3046\u305f\u3081\u306e\u65b9\u6cd5\u3092\u5b66\u3073\u307e\u3059\u3002<br>\u8a73\u3057\u3044\u7406\u8ad6\u306b\u95a2\u3057\u3066\u306f\u3001\u6a5f\u68b0\u5b66\u7fd2\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0(\u7406\u8ad6\u7de8)\u306e<a href=\"https:\/\/aiacademy.jp\/texts\/show\/?id=56\">\u30d1\u30fc\u30bb\u30d7\u30c8\u30ed\u30f3\u3068\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30<\/a>\u3092\u53c2\u8003\u306b\u3057\u3066\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2 id=\"i-1\">\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30<\/h2>\n<p><strong>\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30(logistice regression)\u306f\u51fa\u529b\u5909\u6570\u304c1\u3082\u3057\u304f\u306f0\u306e2\u5024\u306b\u306a\u308b\uff12\u5024\u5206\u985e\u3092\u4e88\u6e2c\u3059\u308b\u624b\u6cd5\u3067\u3059\u3002<\/strong><br>\u5177\u4f53\u7684\u306b\u306f\u4efb\u610f\u306e\u5024\u3092\uff10\u304b\u3089\uff11\u306b\u7f6e\u304d\u63db\u3048\u308b\u30b7\u30b0\u30e2\u30a4\u30c9\u95a2\u6570\u3092\u7528\u3044\u3066\u3001\u4e0e\u3048\u3089\u308c\u305f\u30c7\u30fc\u30bf\u304b\u30892\u3064\u306b\u5206\u3051\u307e\u3059\u3002<br><em>\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306f\u3001\u7dda\u5f62\u5206\u985e\u554f\u984c\u3068\u4e8c\u5024\u5206\u985e\u554f\u984c\u306b\u5bfe\u3059\u308b\u5206\u985e\u30e2\u30c7\u30eb\u3067\u30012\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u5206\u3051\u305f\u3044\u554f\u984c(\u7dda\u5f62\u5206\u96e2\u53ef\u80fd\u306a\u554f\u984c)\u306b\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u3092\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/em><br>\uff08\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306e\u540d\u524d\u306b\u306f\u300c\u56de\u5e30\u300d\u3068\u3064\u3044\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u5206\u985e\u306e\u305f\u3081\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3059\u306e\u3067\u3001\u56de\u5e30\u3068\u6df7\u540c\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002\uff09<\/p>\n\n<h2 id=\"i-2\">\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306e\u6d3b\u7528\u4f8b<\/h2>\n<p>\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306f<span class=\"s1\">\u5224\u5b9a\u78ba\u7387\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u51fa\u6765\u308b\u305f\u3081\u3001<\/span><span class=\"s1\">\u5206\u985e\u306e\u78ba\u4fe1\u5ea6\u5408\u3044\u30920~1\u306e\u78ba\u7387\u3067\u7b97\u51fa\u51fa\u6765\u307e\u3059\u3002<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">\u3053\u306e\u3088\u3046\u306a\u7279\u5fb4\u304b\u3089<\/span><span class=\"s1\"><b>\u30c0\u30a4\u30ec\u30af\u30c8\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0<\/b>\u3001<b>\u533b\u7642\u5206\u91ce<\/b>\u7b49\u3067\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n\n<blockquote>\n<p class=\"p1\"><span class=\"s1\">\u30fb\u60a3\u8005\u304c\u764c\u304b\u764c\u3067\u306f\u306a\u3044\u304b\u306e\u5224\u5b9a<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">\u30fb\u5c4a\u3044\u305f\u30e1\u30fc\u30eb\u304c\u30b9\u30d1\u30e0\u30e1\u30fc\u30eb\u304b\u3001\u901a\u5e38\u30e1\u30fc\u30eb\u304b\uff08\u30e1\u30fc\u30eb\u306e\u30b9\u30d1\u30e0\u30d5\u30a3\u30eb\u30bf\uff09<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">\u30fb\u6708\u984d\u8ab2\u91d1\u30b5\u30fc\u30d3\u30b9\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u89e3\u7d04\u3059\u308b\u304b\u3057\u306a\u3044\u304b\u3092\u5224\u5b9a<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">\u30fb\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u306e\u53d6\u5f15\u4e0d\u6b63\u691c\u77e5<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">\u30fb\u30c0\u30a4\u30ec\u30af\u30c8\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u3092\u9001\u308a\u3001\u53cd\u5fdc\u3059\u308b\u304b\u3057\u306a\u3044\u304b<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">\u30fb\u3042\u308b\u9867\u5ba2\u304c\u5546\u54c1\u3092\u8cb7\u3046\u304b\u8cb7\u308f\u306a\u3044\u304b<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">\u30fb\u3042\u308b\u9867\u5ba2\u304c\u4f55\u30d1\u30fc\u30bb\u30f3\u30c8\u306e\u78ba\u7387\u3067\u5546\u54c1\u3092\u8cb7\u3046\u304b<\/span><\/p>\n<\/blockquote>\n<h2 id=\"i-3\">\u5206\u6790\u30a4\u30e1\u30fc\u30b8<\/h2>\n\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"715\" class=\"wp-image-729\" src=\"https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2021-12-10-17.08.28-1024x715.png\" alt=\"\" srcset=\"https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2021-12-10-17.08.28-1024x715.png 1024w, https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2021-12-10-17.08.28-300x209.png 300w, https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2021-12-10-17.08.28-768x536.png 768w, https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2021-12-10-17.08.28-1536x1072.png 1536w, https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2021-12-10-17.08.28-940x656.png 940w, https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2021-12-10-17.08.28.png 1988w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"><\/figure>\n<p>\n\n\n<\/p>\n<h2 id=\"i-4\">\u5b9f\u88c5<\/h2>\n<p>\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u3092\u5b9f\u88c5\u3059\u308b\u306b\u306f\u3001Sckit-learn\u306eLogisticRegression\u3092\u4f7f\u3046\u3053\u3068\u3067\u30e2\u30c7\u30eb\u306e\u5b9f\u88c5\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre><code class=\"python:\">from sklearn.model_selection import train_test_split\nfrom sklearn.metrics import accuracy_score\nfrom sklearn.datasets import load_iris\nfrom sklearn.linear_model import LogisticRegression \n\ndataset = load_iris() \nX, y = dataset.data, dataset.target\n\n\n# \u5206\u5272 (\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3068\u30c6\u30b9\u30c8\u7528\u306b\u30c7\u30fc\u30bf\u3092\u5206\u3051\u308b)\u3057\u3066\u3001\u30e2\u30c7\u30eb\u3092\u4f5c\u308a\u3001\u6700\u5f8c \u306b\u4e88\u6e2c\u306e\u7cbe\u5ea6\u3092\u898b\u307e\u3059\nX_train, X_test, Y_train, Y_test = train_test_split(X, y)\n# \u30e2\u30c7\u30eb\u306e\u4f5c\u6210(\u521d\u671f\u5316)\n\"\"\"\nPython\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c3.7\u306e\u5834\u5408\u3001\u4e0b\u8a18\u306e\u30b3\u30fc\u30c9\u3060\u3068Warning\u304c\u3067\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\n\u305d\u306e\u969b\u306b\u306f\u3001model = LogisticRegression()\u306e\u90e8\u5206\u3092\u3001\nmodel = LogisticRegression(solver='liblinear')\n\u306b\u66f8\u304d\u63db\u3048\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\n\"\"\"\n\n# \u30e2\u30c7\u30eb\u4f5c\u6210(\u521d\u671f\u5316)\nmodel = LogisticRegression()\nmodel.fit(X_train, Y_train)\n# \u5024\u306e\u4e88\u6e2c\npred = model.predict(X_test)\n# \u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u3092\u4f7f\u3063\u3066\u3001\u3069\u308c\u304f\u3089\u3044\u6b63\u3057\u3044\u304b\u3069\u3046\u304b\u3092\u8a08\u7b97\naccuracy_score(Y_test, pred)\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u6b63\u89e3\u7387\u304c90~97%\u3042\u305f\u308a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2 id=\"i-5\">\u307e\u3068\u3081<\/h2>\n<p>\u3053\u306e\u7ae0\u3067\u306f\u3001\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306b\u95a2\u3057\u3066\u5b66\u3093\u3067\u304d\u307e\u3057\u305f\u3002<br>\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306f\u3001\uff12\u5024\u5206\u985e\u306b\u5229\u7528\u3067\u304d\u308b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3057\u305f\u3002<br>\u7dda\u5f62\u5206\u96e2\u53ef\u80fd\u306a\u5834\u5408\u306b\u6709\u52b9\u306a\u624b\u6cd5\u3067\u3059\u306e\u3067\u3001\u662f\u975e\u4f7f\u3048\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2 id=\"i-6\">\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u95a2\u6570\u3084\u30aa\u30c3\u30ba\u3001\u30aa\u30c3\u30ba\u6bd4\u3001\u5bfe\u6570\u30aa\u30c3\u30ba\u306a\u3069\u306b\u95a2\u3057\u3066<\/h2>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u95a2\u6570\u3084\u30aa\u30c3\u30ba\u3001\u30aa\u30c3\u30ba\u6bd4\u3001\u5bfe\u6570\u30aa\u30c3\u30ba\u3001\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306e\u5b9f\u88c5\u3092scikit-learn\u306a\u3069\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u7528\u3044\u3066\uff10\u304b\u3089\u5b9f\u88c5\u306b\u95a2\u3059\u308b\u8a71\u984c\u306b\u95a2\u3057\u3066\u306f\u89e3\u8aac\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u305d\u308c\u3089\u306e\u5185\u5bb9\u307e\u3067\u5b66\u3073\u305f\u3044\u65b9\u306f\u3001AI Academy Bootcamp\u3092\u691c\u8a0e\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/aiacademy.jp\/bootcamp\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"341\" src=\"https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/bootcamp_ad_72ppi-1024x341.png\" alt=\"\" class=\"wp-image-691\" srcset=\"https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/bootcamp_ad_72ppi-1024x341.png 1024w, https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/bootcamp_ad_72ppi-300x100.png 300w, https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/bootcamp_ad_72ppi-768x256.png 768w, https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/bootcamp_ad_72ppi-940x313.png 940w, https:\/\/aiacademy.jp\/media\/wp-content\/uploads\/2021\/12\/bootcamp_ad_72ppi.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"><\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u6b21 \u306f\u3058\u3081\u306b \u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30 \u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306e\u6d3b\u7528\u4f8b \u5206\u6790\u30a4\u30e1\u30fc\u30b8 \u5b9f\u88c5 \u307e\u3068\u3081 \u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u95a2\u6570\u3084\u30aa\u30c3\u30ba\u3001\u30aa\u30c3\u30ba\u6bd4\u3001\u5bfe\u6570\u30aa\u30c3\u30ba\u306a\u3069\u306b\u95a2\u3057\u3066 \u306f\u3058\u3081\u306b \u3053\u306e\u7ae0\u3067\u306f\u3001\u7c21\u5358\u306b\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306e\u8aac\u660e\u3068\u3001Sciki &#8230; 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