{"id":1160,"date":"2024-09-26T18:20:55","date_gmt":"2024-09-26T09:20:55","guid":{"rendered":"https:\/\/itstudy365.com\/blog\/?page_id=1160"},"modified":"2024-09-26T18:27:21","modified_gmt":"2024-09-26T09:27:21","slug":"machine-learning-%e6%a9%9f%e6%a2%b0%e5%ad%a6%e7%bf%92-4-scikit-learn","status":"publish","type":"page","link":"https:\/\/itstudy365.com\/blog\/machine-learning-%e6%a9%9f%e6%a2%b0%e5%ad%a6%e7%bf%92-4-scikit-learn\/","title":{"rendered":"Machine Learning (\u6a5f\u68b0\u5b66\u7fd2) (4) scikit-learn"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_62 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/itstudy365.com\/blog\/machine-learning-%e6%a9%9f%e6%a2%b0%e5%ad%a6%e7%bf%92-4-scikit-learn\/#scikit-learn_%E3%81%A8%E3%81%AF\" title=\"scikit-learn \u3068\u306f\">scikit-learn \u3068\u306f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/itstudy365.com\/blog\/machine-learning-%e6%a9%9f%e6%a2%b0%e5%ad%a6%e7%bf%92-4-scikit-learn\/#AND%E6%BC%94%E7%AE%97%E3%82%92%E8%A9%A6%E3%81%99\" title=\"AND\u6f14\u7b97\u3092\u8a66\u3059\">AND\u6f14\u7b97\u3092\u8a66\u3059<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/itstudy365.com\/blog\/machine-learning-%e6%a9%9f%e6%a2%b0%e5%ad%a6%e7%bf%92-4-scikit-learn\/#%E3%82%B4%E3%83%BC%E3%83%AB%E3%81%AE%E8%A8%AD%E5%AE%9A\" title=\"\u30b4\u30fc\u30eb\u306e\u8a2d\u5b9a\">\u30b4\u30fc\u30eb\u306e\u8a2d\u5b9a<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/itstudy365.com\/blog\/machine-learning-%e6%a9%9f%e6%a2%b0%e5%ad%a6%e7%bf%92-4-scikit-learn\/#%E3%82%A2%E3%83%AB%E3%82%B4%E3%83%AA%E3%82%BA%E3%83%A0%E3%81%AE%E9%81%B8%E6%8A%9E\" title=\"\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u9078\u629e\">\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u9078\u629e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/itstudy365.com\/blog\/machine-learning-%e6%a9%9f%e6%a2%b0%e5%ad%a6%e7%bf%92-4-scikit-learn\/#XOR%E6%BC%94%E7%AE%97%E3%82%92%E8%A9%A6%E3%81%99\" title=\"XOR\u6f14\u7b97\u3092\u8a66\u3059\">XOR\u6f14\u7b97\u3092\u8a66\u3059<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"scikit-learn_%E3%81%A8%E3%81%AF\"><\/span>scikit-learn \u3068\u306f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul>\n<li>\u6a5f\u68b0\u5b66\u7fd2\u3067\u4f7f\u308f\u308c\u3066\u3044\u308b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u5bfe\u5fdc<\/li>\n\n\n\n<li>\u6a5f\u68b0\u5b66\u7fd2\u306e\u7d50\u679c\u3092\u691c\u8a3c\u3059\u308b\u6a5f\u80fd\u304c\u3042\u308b<\/li>\n\n\n\n<li>\u6a5f\u68b0\u5b66\u7fd2\u3067\u3088\u304f\u5229\u7528\u3055\u308c\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\uff08\u300cPandas\u300d\u300cNumPy\u300d\u300cScipy\u300d\u300cMatplotlib\u300d\u306a\u3069\uff09\u3068\u89aa\u548c\u6027\u304c\u9ad8\u3044<\/li>\n\n\n\n<li>BSD\u30e9\u30a4\u30bb\u30f3\u30b9\u306e\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u305f\u3081\u3001\u7121\u6599\u3067\u5546\u7528\u5229\u7528\u304c\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"AND%E6%BC%94%E7%AE%97%E3%82%92%E8%A9%A6%E3%81%99\"><\/span>AND\u6f14\u7b97\u3092\u8a66\u3059<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%82%B4%E3%83%BC%E3%83%AB%E3%81%AE%E8%A8%AD%E5%AE%9A\"><\/span>\u30b4\u30fc\u30eb\u306e\u8a2d\u5b9a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul>\n<li>\u5165\u529b\uff08X,Y\uff09\u3068\u7d50\u679c\uff08X and Y\uff09\u306e\u5168\u30d1\u30bf\u30fc\u30f3\u3092\u5b66\u7fd2\u3055\u305b\u308b<\/li>\n\n\n\n<li>\u6b63\u3057\u3044\u7d50\u679c\uff08X and Y\uff09\u306b\u5206\u985e\u3057\u3066\u304f\u308c\u308b\u304b\u3092\u8a55\u4fa1\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%82%A2%E3%83%AB%E3%82%B4%E3%83%AA%E3%82%BA%E3%83%A0%E3%81%AE%E9%81%B8%E6%8A%9E\"><\/span>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u9078\u629e<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u30c1\u30fc\u30c8\u30b7\u30fc\u30c8\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd<\/p>\n\n\n\n<figure class=\"wp-block-embed\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/scikit-learn.org\/stable\/machine_learning_map.html\n<\/div><\/figure>\n\n\n\n<p>\u4eca\u56de\u306f\u300cLinearSVC\u300d\u3092\u63a1\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-python\" data-lang=\"Python\"><code>from sklearn.svm import LinearSVC\nfrom sklearn.metrics import accuracy_score\n\n# Data for learning\nlearn_data = [[0,0], [1,0], [0,1], [1,1]]\nlearn_label = [0, 0, 0, 1]\n\n# Algorithm\nclf = LinearSVC()\n\n# Learning\nclf.fit(learn_data, learn_label)\n\n# Data for testing\ntest_data = [[0,0], [1,0], [0,1], [1,1]]\ntest_label = clf.predict(test_data)\n\n# Evaluation\nprint(&quot;Prediction for &quot;, test_data, &quot; is &quot;, test_label)\nprint(&quot;Accuracy score = &quot;, accuracy_score([0, 0, 0, 1], test_label))<\/code><\/pre><\/div>\n\n\n\n<ul>\n<li>sklearn.svm.LinearSVC : LinearSVC\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u306e\u30d1\u30c3\u30b1\u30fc\u30b8<\/li>\n\n\n\n<li>sklearn.metrics.accuracy_score\uff1a\u30c6\u30b9\u30c8\u7d50\u679c\u3092\u8a55\u4fa1\u3059\u308b\u305f\u3081\u306e\u30d1\u30c3\u30b1\u30fc\u30b8<\/li>\n<\/ul>\n\n\n\n<p>\u7d50\u679c\uff1a\u6b63\u89e3\u7387\u304c1.0\u3067100%\u3067\u3042\u308b<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"XOR%E6%BC%94%E7%AE%97%E3%82%92%E8%A9%A6%E3%81%99\"><\/span>XOR\u6f14\u7b97\u3092\u8a66\u3059<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-python\" data-lang=\"Python\"><code>from sklearn.svm import LinearSVC\nfrom sklearn.metrics import accuracy_score\n\n# Data for learning\nlearn_data = [[0,0], [1,0], [0,1], [1,1]]\nlearn_label = [0, 1, 1, 0]\n\n# Algorithm\nclf = LinearSVC()\n\n# Learning\nclf.fit(learn_data, learn_label)\n\n# Data for testing\ntest_data = [[0,0], [1,0], [0,1], [1,1]]\ntest_label = clf.predict(test_data)\n\n# Evaluation\nprint(&quot;Prediction for &quot;, test_data, &quot; is &quot;, test_label)\nprint(&quot;Accuracy score = &quot;, accuracy_score([0, 1, 1, 0], test_label))<\/code><\/pre><\/div>\n\n\n\n<p>\u7d50\u679c\uff1a\u6b63\u89e3\u7387\u304c25%, 50%, 75%\u3068\u5b9f\u884c\u3059\u308b\u5ea6\u306b\u5909\u5316\u3059\u308b\u3002100%\u306b\u306f\u306a\u3089\u306a\u3044\u3002<\/p>\n\n\n\n<p>\u5225\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u8a66\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u300cKNeighborsClassifier\u300d\u3092\u63a1\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-python\" data-lang=\"Python\"><code>from sklearn.neighbors import KNeighborsClassifier\nfrom sklearn.metrics import accuracy_score\n\n# Data for learning\nlearn_data = [[0,0], [1,0], [0,1], [1,1]]\nlearn_label = [0, 1, 1, 0]\n\n# Algorithm\nclf = KNeighborsClassifier(n_neighbors = 1)\n\n# Learning\nclf.fit(learn_data, learn_label)\n\n# Data for testing\ntest_data = [[0,0], [1,0], [0,1], [1,1]]\ntest_label = clf.predict(test_data)\n\n# Evaluation\nprint(&quot;Prediction for &quot;, test_data, &quot; is &quot;, test_label)\nprint(&quot;Accuracy score = &quot;, accuracy_score([0, 1, 1, 0], test_label))<\/code><\/pre><\/div>\n\n\n\n<ul>\n<li>KNeighborsClassifier(n_neighbors = 1)\u3000\u3067\u306f\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u547c\u3073\u51fa\u3057\u3066\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210\u3057\u3066\u3044\u308b\u304c\u3001\u305d\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306b n_neighbors \u3092\u6307\u5b9a\u3057\u3066\u3044\u308b\u3002<br><code>n_neighbors<\/code>\u306b\u3088\u308a\u3001\u8fd1\u508d\u3068\u3057\u3066\u53d6\u308a\u6271\u3046\u30c7\u30fc\u30bf\u306e\u6570\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u7d50\u679c\uff1a\u6b63\u89e3\u7387\u304c1.0\u3067100%\u3067\u3042\u308b<\/p>\n\n\n\n<p>\u8a55\u4fa1\u7d50\u679c\u304c\u826f\u304f\u306a\u3044\u5834\u5408\u3001\u5225\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u63a1\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u8a55\u4fa1\u304c\u5411\u4e0a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>scikit-learn \u3068\u306f AND\u6f14\u7b97\u3092\u8a66\u3059 \u30b4\u30fc\u30eb\u306e\u8a2d&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/itstudy365.com\/blog\/wp-json\/wp\/v2\/pages\/1160"}],"collection":[{"href":"https:\/\/itstudy365.com\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/itstudy365.com\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/itstudy365.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itstudy365.com\/blog\/wp-json\/wp\/v2\/comments?post=1160"}],"version-history":[{"count":2,"href":"https:\/\/itstudy365.com\/blog\/wp-json\/wp\/v2\/pages\/1160\/revisions"}],"predecessor-version":[{"id":1164,"href":"https:\/\/itstudy365.com\/blog\/wp-json\/wp\/v2\/pages\/1160\/revisions\/1164"}],"wp:attachment":[{"href":"https:\/\/itstudy365.com\/blog\/wp-json\/wp\/v2\/media?parent=1160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}