{"id":17918,"date":"2021-04-27T14:19:49","date_gmt":"2021-04-27T06:19:49","guid":{"rendered":"https:\/\/blog.tibame.com\/?p=17918"},"modified":"2021-11-10T15:56:41","modified_gmt":"2021-11-10T07:56:41","slug":"ai60%e5%95%8f-q22%e4%bb%80%e9%ba%bc%e6%98%af%e7%b7%9a%e6%80%a7%e5%9b%9e%e6%ad%b8%e5%88%86%e6%9e%90%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/blog.tibame.com\/?p=17918","title":{"rendered":"\u3010AI60\u554f\u3011Q22\u4ec0\u9ebc\u662f\u7dda\u6027\u56de\u6b78\u5206\u6790\uff1f"},"content":{"rendered":"\n<p>\u56de\u6b78\u662f\u4e00\u7a2e\u89e3\u984c\u65b9\u6cd5\uff0c\u6216\u8005\u8aaa\u300c\u5b78\u7fd2\u300d\u65b9\u6cd5\uff0c\u4e5f\u662f\u6a5f\u5668\u5b78\u7fd2\u3001\u8cc7\u6599\u63a2\u52d8\u4e2d\u4e00\u584a\u6bd4\u8f03\u91cd\u8981\u7684\u6982\u5ff5\u3002<br \/>\u7dda\u6027\u56de\u6b78\u5c0d\u65bc\u6a5f\u5668\u5b78\u7fd2\/\u8cc7\u6599\u79d1\u5b78\u7684\u521d\u5b78\u8005\u4f86\u8aaa\uff0c\u4ed6\u662f\u77e5\u540d\u5ea6\u6700\u5ee3\u7684\u5efa\u6a21\u65b9\u5f0f\u4e4b\u4e00\uff0c\u4ed6\u662f\u9996\u9078\u540d\u984d\uff0c\u6f14\u7b97\u6cd5\u9069\u7528\u6027\u5f88\u5ee3\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u5167\u5bb9\u76ee\u9304<\/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=\"\u986f\u793a\/\u96b1\u85cf\u5167\u5bb9\u76ee\u9304\"><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:\/\/blog.tibame.com\/?p=17918\/#%E4%BB%80%E9%BA%BC%E6%98%AF%E5%9B%9E%E6%AD%B8%E5%88%86%E6%9E%90%EF%BC%9F\" >\u4ec0\u9ebc\u662f\u56de\u6b78\u5206\u6790\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.tibame.com\/?p=17918\/#%E7%82%BA%E4%BB%80%E9%BA%BC%E8%A6%81%E9%81%8B%E7%94%A8%E5%9B%9E%E6%AD%B8%E5%88%86%E6%9E%90%EF%BC%9F\" >\u70ba\u4ec0\u9ebc\u8981\u904b\u7528\u56de\u6b78\u5206\u6790\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.tibame.com\/?p=17918\/#%E3%80%8C%E7%B7%9A%E6%80%A7%E3%80%8D%E5%9B%9E%E6%AD%B8%E5%88%86%E6%9E%90%E6%98%AF%E4%BB%80%E9%BA%BC%EF%BC%9F\" >\u300c\u7dda\u6027\u300d\u56de\u6b78\u5206\u6790\u662f\u4ec0\u9ebc\uff1f<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E4%BB%80%E9%BA%BC%E6%98%AF%E5%9B%9E%E6%AD%B8%E5%88%86%E6%9E%90%EF%BC%9F\"><\/span>\u4ec0\u9ebc\u662f\u56de\u6b78\u5206\u6790\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5148\u7c21\u55ae\u70ba\u5927\u5bb6\u8aaa\u660e\uff0c \u56de\u6b78\u7684\u82f1\u6587\u662fRegression\uff0c \u55ae\u8a5eRegress\u4e2d\u6587\u610f\u601d\u662f\u9000\u5316\u3001\u5012\u9000\u7684\u610f\u601d\u3002\u56de\u6b78\u5206\u6790\u662f\u9810\u6e2c\u5efa\u6a21\u7684\u6280\u8853\uff0c\u662f\u904b\u7528\u4e00\u500b\u6216\u4e00\u7d44\u8b8a\u6578\u4f86\u9810\u6e2c\u53e6\u4e00\u7d44\u8b8a\u6578\u7684\u7d71\u8a08\u6280\u8853\u7e3d\u7a31\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u81ea\u8b8a\u6578 Independent variable\uff1a\uff08\u9810\u6e2c\uff0c\u56e0\uff09\u9810\u6e2c\u7684\u8b8a\u9805<\/li><li>\u56e0\u8b8a\u6578 Dependent variable\uff1a\uff08\u76ee\u6a19\uff0c\u679c\uff09\u88ab\u9810\u6e2c\u7684\u8b8a\u9805\u7a31<\/li><\/ul>\n\n\n\n<p>\u901a\u5e38\u904b\u7528\u5728\u9810\u6e2c\u5efa\u6a21\u3001\u6642\u9593\u9806\u5e8f\u3001\u67e5\u627e\u8b8a\u6578\u9593\u95dc\u4fc2\u4e0a\u4f7f\u7528\u3002<\/p>\n\n\n\n<p>\u53c8\u80fd\u5206\u70ba\u5169\u7a2e\u56de\u6b78\u5206\u6790\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>\u7c21\u55ae\u56de\u6b78 Simple Regression<\/strong><br \/>\u6839\u64da\u4e00\u500b\u300c\u81ea\u8b8a\u6578\u300d\u4f86\u9810\u6e2c\u300c\u56e0\u8b8a\u6578\u300d\u7684\u56de\u6b78\u5206\u6790<br \/><\/li><li><strong>\u591a\u5143\u56de\u6b78 Multiple regression<\/strong><br \/>\u300c\u81ea\u8b8a\u6578\u300d\u70ba\u5169\u500b\u6216\u5169\u500b\u4ee5\u4e0a<\/li><\/ul>\n\n\n\n<p>\u7c21\u55ae\u4f86\u8aaa\uff0c\u7576\u6211\u5011\u770b\u5230\u5927\u91cf\u4e8b\u5be6\u5448\u73fe\u7684\u72c0\u614b\u5f8c\uff0c\u53ef\u4ee5\u9032\u4e00\u6b65\u5224\u65b7\u5b83\u53ef\u80fd\u7684\u539f\u56e0\u8207\u72c0\u614b\u4e4b\u9593\u7684\u95dc\u4fc2\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u8209\u4f8b\uff1a\u7528\u9ad8\u4e2d\u5b78\u751f\u5728\u6821\u6210\u7e3e\u4f86\u9810\u6e2c\u5176\u5b78\u6e2c\u5206\u6578\uff0c\u5c31\u662f\u7c21\u55ae\u56de\u6b78\u5206\u6790\uff1b<br \/>\u800c\u82e5\u540c\u6642\u7528\u5b78\u751f\u5728\u6821\u6210\u7e3e\u3001\u667a\u5546\u5169\u500b\u300c\u81ea\u8b8a\u6578\u300d\u4f86\u9810\u6e2c\u5176\u5b78\u6e2c\u5206\u6578\uff0c\u5c31\u662f\u591a\u5143\u56de\u6b78\u5206\u6790\u7684\u61c9\u7528\u3002<\/p><\/blockquote>\n\n\n\n<p>\u56e0\u6b64\uff0c\u56de\u6b78\u5206\u6790\u5b83\u662f\u5efa\u6a21\u3001\u8cc7\u6599\u5206\u6790\u7684\u91cd\u8981\u5de5\u5177\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%82%BA%E4%BB%80%E9%BA%BC%E8%A6%81%E9%81%8B%E7%94%A8%E5%9B%9E%E6%AD%B8%E5%88%86%E6%9E%90%EF%BC%9F\"><\/span> \u70ba\u4ec0\u9ebc\u8981\u904b\u7528\u56de\u6b78\u5206\u6790\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u56de\u6b78\u5206\u6790\u662f\u4f30\u8a08\u5169\u500b\u6216\u5169\u500b\u4ee5\u4e0a\u8b8a\u6578\u9593\u7684\u95dc\u4fc2\u3002<\/p>\n\n\n\n<p>\u53ef\u4ee5\u8209\u500b\u4f8b\u5b50\uff0c\u5e6b\u52a9\u7406\u89e3\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u5047\u8a2dTibaMe\u8981\u9810\u4f30\u90193\u500b\u6708\u7684\u7dda\u4e0a\u8ab2\u92b7\u552e\u63d0\u5347\u5e45\u5ea6\uff0c<br \/>\u800cTibaMe\u7684\u5831\u8868\u4e0a\u986f\u793a\u7dda\u4e0a\u8ab2\u92b7\u552e\u984d\u70ba\u6bcf\u6708\u6210\u672c\u652f\u51fa\u76843\u500d\u3002<br \/>\u4e0b\u4e00\u6b65\u6211\u5011\u5c31\u53ef\u4ee5\u7c21\u55ae\u9810\u6e2c\u51fa\u672a\u4f86TibaMe\u53ef\u80fd\u7684\u7dda\u4e0a\u8ab2\u92b7\u552e\u60c5\u6cc1\u3002<\/p><\/blockquote>\n\n\n\n<p>\u9664\u6b64\u4e4b\u5916\uff0c\u56de\u6b78\u5206\u6790\u9084\u80fd\u4e86\u89e3\u540c\u500b\u8b8a\u6578\u53ef\u80fd\u5e36\u4f86\u7684\u4e0d\u540c\u5f71\u97ff\uff0c\u5982\uff1a\u50f9\u683c\u8b8a\u52d5\u5e45\u5ea6\u8207\u4fc3\u92b7\u6d3b\u52d5\u7684\u95dc\u806f\u3002<\/p>\n\n\n\n<p>\u5b83\u70ba\u5e02\u5834\u7814\u7a76\u54e1\u3001\u8cc7\u6599\u5206\u6790\u5e2b\u3001\u8cc7\u6599\u79d1\u5b78\u5bb6\u69cb\u5efa\u9810\u6e2c\u6a21\u578b\u63d0\u4f9b\u5404\u7a2e\u91cd\u8981\u8b8a\u6578\u3002<\/p>\n\n\n\n<p>\u56de\u6b78\u5206\u6790\u65b9\u5f0f\u975e\u5e38\u591a\u7a2e\uff0c\u4f46\u6700\u6709\u540d\u7684\u5176\u4e2d\u4e00\u500b\u662f\u7dda\u6027\u56de\u6b78\u5206\u6790\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%80%8C%E7%B7%9A%E6%80%A7%E3%80%8D%E5%9B%9E%E6%AD%B8%E5%88%86%E6%9E%90%E6%98%AF%E4%BB%80%E9%BA%BC%EF%BC%9F\"><\/span>\u300c\u7dda\u6027\u300d\u56de\u6b78\u5206\u6790\u662f\u4ec0\u9ebc\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5c0d\u65bc\u7dda\u6027\u56de\u6b78\u5206\u6790\uff0c\u5b83\u7684\u56e0\u8b8a\u6578\u662f\u9023\u7e8c\u7684\uff0c\u81ea\u8b8a\u6578\u5247\u53ef\u4ee5\u662f\u9023\u7e8c\u7684\u6216\u662f\u96e2\u6563\u7684\u3002\u5b83\u7684\u56de\u6b78\u7dda\u5728\u672c\u8cea\u4e0a\u662f\u7dda\u6027\u7684\u3002 <\/p>\n\n\n\n<p>\u5728\u6a5f\u5668\u5b78\u7fd2\u3001\u8cc7\u6599\u63a2\u52d8\u9818\u57df\uff0c\u6700\u5e38\u7528\u7684\u56de\u6b78\u662f\u5169\u5927\u985e\uff1a<strong>\u7dda\u6027\u56de\u6b78<\/strong>\u3001<strong>\u975e\u7dda\u6027\u56de\u6b78<\/strong>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>\u7dda\u6027\u56de\u6b78 Linear Regression<\/strong>\uff1a<br \/>\u5047\u5b9a\u300c\u81ea\u8b8a\u6578\u300d\u548c\u300c\u56e0\u8b8a\u6578\u300d\u4e4b\u9593\u7684\u51fd\u6578\u95dc\u4fc2\u70ba\u7dda\u6027<br \/><\/li><li><strong>\u975e\u7dda\u5f62\u56de\u6b78 Nonlinear Regression<\/strong>\uff1a<br \/>\u5047\u5b9a\u300c\u81ea\u8b8a\u6578\u300d\u548c\u300c\u56e0\u8b8a\u6578\u300d\u4e4b\u9593\u7684\u51fd\u6578\u95dc\u4fc2\u70ba\u975e\u7dda\u6027<\/li><\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a2d\u8a08\u300c\u7dda\u6027\u56de\u6b78\u300d\u9019\u7a2e\u95dc\u4fc2\u70ba\uff1a<strong>y = f(x) = wx + b<\/strong><\/h3>\n\n\n\n<p>\u9019\u88e1\u7684w\u548cx\u5206\u5225\u662f1\u00d7n\u548cn\u00d71\u7684\u77e9\u9663\uff0cwx \u5247\u6307\u7684\u662f\u9019\u5169\u500b\u77e9\u9663\u7684\u5167\u7a4d\u3002<\/p>\n\n\n\n<p>\u5177\u9ad4\u4e00\u9ede\u8aaa\uff0c\u4f8b\u5982\uff1a\u5728\u4e00\u500b\u5be6\u9a57\u4e2d\u89c0\u5bdf\u5230\u4e00\u540d\u75c5\u60a3\u7684\u5e7e\u500b\u6307\u6a19\u5448\u73fe\u7dda\u6027\u95dc\u4fc2\u3002<br \/>\u82e5\u89c0\u5bdf\u5230\u7684\u4e0d\u662f\u7dda\u6027\u95dc\u4fc2\u800c\u7528\u7dda\u6027\u6a21\u578b\u4f86\u5efa\u6a21\u7684\u8a71\uff0c\u6703\u5f97\u5230<strong>\u6b20\u64ec\u5408<\/strong>\u7684\u7d50\u679c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-verse\">*<strong>\u6b20\u64ec\u5408 underfitting<\/strong>\uff1a<br \/>\u6307\u6a21\u578b<strong>\u64ec\u5408<\/strong>\u7a0b\u5ea6\u4e0d\u9ad8\uff0c\u6578\u64da\u8ddd\u96e2<strong>\u64ec\u5408<\/strong>\u66f2\u7dda\u8f03\u9060\uff0c<br \/>\u6216\u6307\u6a21\u578b\u6c92\u6709\u5f88\u597d\u5730\u6355\u6349\u5230\u6578\u64da\u7279\u5fb5\uff0c\u4e0d\u80fd\u5920\u5f88\u597d\u5730<strong>\u64ec\u5408<\/strong>\u6578\u64da\u3002<\/pre>\n\n\n\n<p>\u7576\u62ff\u5230\u7684x\u662f\u4e00\u500b5\u7dad\u7684\u5411\u91cf\uff0cx\u548cy\u90fd\u662f\u89c0\u6e2c\u5230\u7684\u503c\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>x\uff1a\u4ee3\u8868\u4e00\u540d\u60a3\u8005\u7684\u5e74\u9f61\u3001\u8eab\u9ad8\u3001\u9ad4\u91cd\u3001\u8840\u58d3\u3001\u8840\u8102\u9019\u5e7e\u500b\u6307\u6a19\u503c<\/li><li>y\uff1a\u63cf\u8ff0\u4ed6\u5011\u8840\u7cd6\u7a0b\u5ea6\u7684\u6307\u6a19\u503c<\/li><\/ul>\n\n\n\n<p>\u62ff\u5230\u5927\u91cf\u6a23\u672c\uff08\u5c31\u662f\u5927\u91cf\u7684x\u548cy\uff09\u5f8c\uff0c\u80fd\u731c\u6e2c\u5411\u91cf (\u5e74\u9f61\u3001\u8eab\u9ad8\u3001\u9ad4\u91cd\u3001\u8840\u58d3\u3001\u8840\u8102) \u548c\u8207\u5176\u6709\u95dc\u806f\u95dc\u4fc2\u7684\u8840\u7cd6\u7a0b\u5ea6y\u503c\u6709\u9019\u6a23\u7684\u95dc\u4fc2\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>y=w<\/strong><sub><strong>1<\/strong><\/sub><strong>\u00d7\u5e74\u9f61+w<\/strong><sub><strong>2<\/strong><\/sub><strong>\u00d7\u8eab\u9ad8+w<\/strong><sub><strong>3<\/strong><\/sub><strong>\u00d7\u9ad4\u91cd+w<\/strong><sub><strong>4<\/strong><\/sub><strong>\u00d7\u8840\u58d3+w<\/strong><sub><strong>5<\/strong><\/sub><strong>\u00d7\u8840\u8102+b<\/strong><\/h4>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u628a\u6bcf\u4e00\u540d\u60a3\u8005\u7684 (\u5e74\u9f61,\u8eab\u9ad8,\u9ad4\u91cd,\u8840\u58d3,\u8840\u8102) \u5177\u9ad4\u5411\u91cf\u503c\u5e36\u5165\uff0c\u4e26\u628a\u5176\u8840\u7cd6\u7a0b\u5ea6y\u503c\u4e5f\u5e36\u5165\u3002<\/p>\n\n\n\n<p>\u5982\u6b64\u4e00\u4f86\uff0c\u5728\u6240\u6709\u7684\u60a3\u8005\u6578\u64da\u8f38\u5165\u5f8c\uff0c\u6703\u51fa\u73fe\u4e00\u7cfb\u5217\u7684\u516d\u5143\u4e00\u6b21\u65b9\u7a0b\uff0c\u672a\u77e5\u6578\u662fw<sub>1<\/sub>~w<sub>5<\/sub>\u548cb\u2014\u4e5f\u5c31\u662fw\u77e9\u9663\u7684\u5167\u5bb9\u548c\u504f\u7f6eb\u7684\u5167\u5bb9\u3002<\/p>\n\n\n\n<p>\u63a5\u8457\u8981\u505a\u7684\u4e8b\uff0c\u662f\u8981\u628aw\u77e9\u9663\u7684\u5167\u5bb9\u548c\u504f\u7f6eb\u7684\u5167\u5bb9\u6c42\u51fa\u4e00\u500b\u6700\u300c\u5408\u9069\u300d\u7684\u89e3\u4f86\u3002<\/p>\n\n\n\n<p>\u9019\u500b\u300c\u5408\u9069\u300d\u7684\u6982\u5ff5\uff0c\u662f\u8981\u5f97\u5230\u4e00\u500b\u5728\u7bc4\u570d\u5167\u7531f(x)\u6620\u5c04\u5f97\u5230\u7684y\uff0c\u548c\u771f\u5be6\u89c0\u6e2c\u5230\u7684y\u7684\u5dee\u8ddd\u7684\u52a0\u7e3d\uff0c\u5beb\u51fa\u4f86\u6703\u662f\u9019\u7a2e\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/blog.wiedu.tw\/wp-content\/uploads\/2021\/04\/\u7dda\u6027\u56de\u6b78.jpg\" alt=\"\u7def\u80b2TibaMeAI 60\u554f-\u4ec0\u9ebc\u662f\u7dda\u6027\u56de\u6b78\uff1f\" class=\"wp-image-18324\" width=\"306\" height=\"86\" srcset=\"https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u7dda\u6027\u56de\u6b78.jpg 773w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u7dda\u6027\u56de\u6b78-300x85.jpg 300w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u7dda\u6027\u56de\u6b78-768x219.jpg 768w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u7dda\u6027\u56de\u6b78-585x166.jpg 585w\" sizes=\"(max-width: 306px) 100vw, 306px\" \/><figcaption>\u571622-1<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Loss\u7684\u542b\u7fa9\u662f\u4ec0\u9ebc\uff1f<\/h3>\n\n\n\n<p>\u5982\u679cw\u548cb\u7d66\u7684\u503c\u7406\u60f3\uff0c\u5dee\u8ddd\u503c\u6703\u662f0\uff0c\u56e0\u70ba\u6bcf\u500bx\u7d93\u904e\u6620\u5c04\u90fd\u548c\u89c0\u6e2c\u503c\u4e00\u81f4\uff0c\u9019\u7a2e\u7406\u60f3\u72c0\u6cc1\uff0c\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u898b\u4e0d\u5230\u3002\u6240\u4ee5\uff0cLoss\u8d8a\u5c0f\uff0c\u6620\u5c04\u95dc\u4fc2\u63cf\u8ff0\u8d8a\u7cbe\u6e96\u3002<\/p>\n\n\n\n<p>\u82e5\u60f3\u8fa6\u6cd5\u628a Loss \u63cf\u8ff0\u6210\uff1aLoss=f\uff08w, b\uff09\uff0cLoss\u76e1\u53ef\u80fd\u5c0f\u7684w\u548cb\u7684\u53d6\u503c\uff0c\u5c31\u6210\u529f\u4e86\u3002\u5f97\u5230\u4e00\u500b\u8aa4\u5dee\u8db3\u5920\u5c0f\u7684w\u548cb\uff0c\u80fd\u5920\u5728\u9a57\u8b49\u7528\u7684\u8cc7\u6599\u96c6\u4e0a\u6709\u6eff\u8db3\u7576\u524d\u9700\u6c42\u7684\u7cbe\u5ea6\u8868\u73fe\u3002<\/p>\n\n\n\n<p>\u5982\uff1a\u9810\u6e2c\u75c5\u60a3\u7684\u8840\u7cd6\u8aa4\u5dee\u70ba\u8aa4\u5dee\u5e73\u5747&lt;=0.3\u70ba\u5bb9\u5fcd\u4e0a\u7dda\uff0c\u8a13\u7df4\u5f8c\u5728\u9a57\u8b49\u96c6\u4e0a\u7684\u8868\u73fe\u70ba\u8aa4\u5dee\u5e73\u5747\u70ba0.2\uff0c\u5c31\u662f\u5408\u683c\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1024\" height=\"410\" src=\"https:\/\/blog.wiedu.tw\/wp-content\/uploads\/2021\/03\/week5\u88fd\u5716_\u571622-1024x410.png\" alt=\"\" class=\"wp-image-17920\" srcset=\"https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/03\/week5\u88fd\u5716_\u571622-1024x410.png 1024w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/03\/week5\u88fd\u5716_\u571622-300x120.png 300w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/03\/week5\u88fd\u5716_\u571622-768x307.png 768w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/03\/week5\u88fd\u5716_\u571622-1920x768.png 1920w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/03\/week5\u88fd\u5716_\u571622-1170x468.png 1170w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/03\/week5\u88fd\u5716_\u571622-585x234.png 585w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>\u571622-2 \u8cc7\u6599\u96c6\u5206\u6210\u8a13\u7df4\u96c6\u3001\u9a57\u8b49\u96c6<\/figcaption><\/figure>\n\n\n\n<p>\u4ee5\u5f80\u7684\u6a5f\u5668\u5b78\u7fd2\u3001\u8cc7\u6599\u63a2\u52d8\u4e2d\u56de\u6b78\u3001\u5206\u985e\uff0c\u9019\u4e9b\u6f14\u7b97\u6cd5\u90fd\u6709\u4e00\u500b\u8981\u628a\u7372\u53d6\u5230\u7684\u8cc7\u6599\u96c6\u5206\u6210\u8a13\u7df4\u96c6\u3001\u9a57\u8b49\u96c6\u7684\u904e\u7a0b\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u8a13\u7df4\u96c6\u8cc7\u6599\uff1a\u8a13\u7df4\u3001\u6b78\u7d0d\u95dc\u4fc2\u4f7f\u7528<\/li><li>\u9a57\u8b49\u96c6\u8cc7\u6599\uff1a\u505a\u9a57\u8b49\uff0c\u907f\u514d\u904e\u64ec\u5408\u73fe\u8c61<\/li><\/ul>\n\n\n\n<pre class=\"wp-block-verse\">* <strong>\u904e\u64ec\u5408 Overfitting<\/strong>\uff1a<br \/>\u64ec\u5408\u4e86\u6bcf\u500b\u6578\u64da\uff0c\u53cd\u800c\u4e1f\u5931\u8981\u7684\u898f\u5f8b\uff0c<br \/>\u4f7f\u7528\u64ec\u5408\u7d50\u679c\u53bb\u9810\u6e2c\u53e6\u4e00\u500b\u8a13\u7df4\u96c6\u6642\u8aa4\u5dee\u6703\u66f4\u70ba\u660e\u986f\u3002<\/pre>\n\n\n\n<p>\u8cc7\u6599\u96c6\u7684\u5283\u5206\u53ef\u4ee5\u4e09\u4e03\u958b\u3001\u4e8c\u516b\u958b\uff0c\u73fe\u5728\u751f\u7522\u74b0\u5883\u4e2d\u5927\u591a\u4f7f\u7528\u9019\u6a23\u7684\u6bd4\u4f8b\uff0c\u8a13\u7df4\u96c6\u5247\u4f7f\u7528\u8cc7\u6599\u8f03\u591a\u7684\u90e8\u5206\u3002<\/p>\n\n\n\n<p>\u7531\u65bc\u9019\u7a2e\u5047\u8a2d\u4e2d\u8f38\u5165\u7684x\u5411\u91cf\u8207\u6a19\u7c64\u503cy\u662f\u4e00\u7a2e\u7dda\u6027\u95dc\u4fc2 y=f\uff08x\uff09=wx+b\uff0c\u6240\u4ee5\u624d\u53eb\u505a\u7dda\u6027\u56de\u6b78\uff0c\u9019\u4e5f\u662f\u6700\u5e38\u898b\u7684\u5f62\u5f0f\b\uff0c\u4e5f\u5c31\u662fx\u548cw\u90fd\u662f\u4e00\u7dad\u5411\u91cf\u7684\u60c5\u6cc1\u3002<\/p>\n\n\n\n<p>\u82e5\u662f\u5448\u73fe\u5176\u4ed6\u95dc\u4fc2\uff0c\u5982\u6307\u6578\u3001\u5c0d\u6578\u95dc\u4fc2\uff0c\u9019\u6642\u5019\u4f7f\u7528\u7dda\u6027\u56de\u6b78\u53bb\u505a\u300c\u64ec\u5408\u300d\u6703\u767c\u73fe\u640d\u5931\u51fd\u6578\u904e\u5927\uff0c\u9a57\u8b49\u96c6\u7684\u8aa4\u5dee\u4e5f\u6703\u904e\u5927\uff0c\u6703\u51fa\u73fe\u6b20\u64ec\u5408\u73fe\u8c61\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u4ee5\u4e0a\u7c21\u55ae\u4ecb\u7d39\uff0c\u56de\u6b78\u5206\u6790\u7684\u5b9a\u7fa9\u8207\u7528\u8655\u3001\u7dda\u6027\u56de\u6b78\u5206\u6790\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u7def\u80b2TibaMe\u5df2\u7d93\u670910\u842c\u4eba\u6b21\u4f86\u5b78\u7fd2AI\/\u8cc7\u6599\u79d1\u5b78\u77e5\u8b58\u6216\u6280\u8853\uff0c\u82e5\u4f60\u60f3\u9032\u4e00\u6b65\u4e86\u89e3\u6216\u5b78\u7fd2 AI \/ \u8cc7\u6599\u79d1\u5b78\u7684\u76f8\u95dc\u77e5\u8b58\u6216\u6280\u80fd\uff0c\u6b61\u8fce\u4f86TibaMe &#x1f449; <a href=\"https:\/\/bit.ly\/3o4N39e\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" https:\/\/bit.ly\/3o4N39e  (\u5728\u65b0\u5206\u9801\u4e2d\u958b\u555f)\"> https:\/\/bit.ly\/3o4N39e <\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><a href=\"https:\/\/bit.ly\/3o4N39e\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" src=\"https:\/\/blog.wiedu.tw\/wp-content\/uploads\/2021\/10\/\u5b98\u7db2BN-002-1024x576.png\" alt=\"AI\u8cc7\u6599\u79d1\u5b78\u5bb6\u5168\u65b9\u4f4d\u5b78\u7a0b\" class=\"wp-image-19995\" width=\"512\" height=\"288\" srcset=\"https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/10\/\u5b98\u7db2BN-002-1024x576.png 1024w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/10\/\u5b98\u7db2BN-002-300x169.png 300w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/10\/\u5b98\u7db2BN-002-768x432.png 768w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/10\/\u5b98\u7db2BN-002-1170x659.png 1170w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/10\/\u5b98\u7db2BN-002-585x329.png 585w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/10\/\u5b98\u7db2BN-002.png 1201w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><\/a><figcaption><a href=\"https:\/\/bit.ly\/3o4N39e\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"AI\u8cc7\u6599\u79d1\u5b78\u5bb6\u5168\u65b9\u4f4d\u5b78\u7a0b (\u5728\u65b0\u5206\u9801\u4e2d\u958b\u555f)\">AI\u8cc7\u6599\u79d1\u5b78\u5bb6\u5168\u65b9\u4f4d\u5b78\u7a0b<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u4e0b\u7bc7\u5c07\u8207\u5927\u5bb6\u5206\u4eab<strong>\u4ec0\u9ebc\u662f\u6c7a\u7b56\u6a39\u6f14\u7b97\u6cd5\uff1f<\/strong><\/p>\n\n\n\n<p>\u6bcf\u90314\u5247\uff0c\u6bcf\u65e55\u5206\u9418\uff0c&nbsp;<a href=\"https:\/\/blog.wiedu.tw\/?author=44\">\u63d0\u62d4\u6211\u5712\u4e01<\/a>\u966a\u4f60\u5feb\u901f\u6dfb\u88dcAI\/\u8cc7\u6599\u79d1\u5b78\u77e5\u8b58\u8207\u6280\u80fd\u3002<\/p>\n\n\n\n<p>\u82e5\u60a8\u60f3\u4e86\u89e3\u66f4\u591aAI\/\u8cc7\u6599\u79d1\u5b78\u7684\u5c0f\u77e5\u8b58\u3001\u53ca\u5404\u7522\u696d\u7684\u76f8\u95dc\u61c9\u7528\uff0c\u6b61\u8fce\u8a02\u95b1TibaMe FB\u53ca\u90e8\u843d\u683c\uff0c\u6216\u4f60\u6709\u5176\u4ed6\u60f3\u4e86\u89e3\u7684\u4e3b\u984c\u6b61\u8fce\u5728\u4e0b\u65b9\u7559\u8a00\u8b93\u6211\u5011\u77e5\u9053\u5537\uff01<\/p>\n\n\n\n<p><a href=\"https:\/\/www.facebook.com\/Tibame\">\u7def\u80b2TibaMe FB<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.facebook.com\/groups\/TiBaMe.For.Business\">\u4f01\u696d\u4eba\u624d\u6578\u4f4d\u8f49\u578bFB<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/lihi1.com\/OygGK\">\u4f01\u696dAI\u3001\u6578\u4f4d\u4eba\u624dor\u5e73\u53f0\u57f9\u8a13\u65b9\u6848\u8acb\u9ede\u9078<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><a href=\"https:\/\/www.tibame.com\/free?utm_source=blog&amp;utm_medium=free&amp;utm_campaign=course\"><img decoding=\"async\" src=\"https:\/\/blog.wiedu.tw\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a-1024x922.png\" alt=\"\" class=\"wp-image-18372\" width=\"416\" height=\"374\" srcset=\"https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a-1024x922.png 1024w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a-300x270.png 300w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a-768x691.png 768w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a-1170x1053.png 1170w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a-585x527.png 585w, https:\/\/blog.tibame.com\/wp-content\/uploads\/2021\/04\/\u6703\u54e1\u8a3b\u518a.png 1200w\" sizes=\"(max-width: 416px) 100vw, 416px\" \/><\/a><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u53c3\u8003\u8cc7\u6599<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.webtourguide.com\/document\/9fc746cb40c29efe6b61c3cfd2f41d15\">\u8f15\u9b06\u770b\u61c2\u6a5f\u5668\u5b78\u7fd2\uff013\u500b\u6848\u4f8b\u8a73\u89e3\u805a\u985e\u3001\u56de\u6b78\u3001\u5206\u985e\u7b97\u6cd5<\/a><\/li><li><a href=\"https:\/\/www.jianshu.com\/p\/936a374f4373\">\u7c21\u66f8&#8211;\u8f15\u9b06\u770b\u61c2\u6a5f\u5668\u5b78\u7fd2\uff013\u500b\u6848\u4f8b\u8a73\u89e3\u805a\u985e\u3001\u56de\u6b78\u3001\u5206\u985e\u6f14\u7b97\u6cd5<\/a><\/li><li><a href=\"https:\/\/www.finereport.com\/tw\/data-analysis\/7-huigui-ff.html\">\u90197\u7a2e\u56de\u6b78\u5206\u6790\u65b9\u6cd5\uff0c\u8cc7\u6599\u5206\u6790\u5e2b\u5fc5\u9808\u638c\u63e1\uff01<\/a><\/li><li><a href=\"https:\/\/chih-sheng-huang821.medium.com\/%E7%B7%9A%E6%80%A7%E5%9B%9E%E6%AD%B8-linear-regression-3a271a7453e\">\u7dda\u6027\u56de\u6b78(Linear Regression)<\/a><\/li><li><a href=\"http:\/\/www.gotop.com.tw\/epaper\/e0719\/AEM000900n.pdf\">\u8ff4\u6b78\u5206\u6790<\/a><\/li><li><a href=\"https:\/\/terms.naer.edu.tw\/detail\/1453810\/\">\u8ff4\u6b78\u5206\u6790\u8fad\u5178<\/a><\/li><li><a href=\"https:\/\/ithelp.ithome.com.tw\/articles\/10219583\">\u904e\u64ec\u5408\u8207\u6b20\u64ec\u5408<\/a><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u56de\u6b78\u662f\u4e00\u7a2e\u89e3\u984c\u65b9\u6cd5\uff0c\u6216\u8005\u8aaa\u300c\u5b78\u7fd2\u300d\u65b9\u6cd5\uff0c\u4e5f\u662f\u6a5f\u5668\u5b78\u7fd2\u3001\u8cc7\u6599\u63a2\u52d8\u4e2d\u4e00\u584a\u6bd4\u8f03\u91cd\u8981\u7684\u6982\u5ff5\u3002<\/p>\n<p>\u7dda\u6027\u56de\u6b78\u5c0d\u65bc\u6a5f\u5668\u5b78\u7fd2\/\u8cc7\u6599\u79d1\u5b78\u7684\u521d\u5b78\u8005\u4f86\u8aaa\uff0c\u4ed6\u662f\u77e5\u540d\u5ea6\u6700\u5ee3\u7684\u5efa\u6a21\u65b9\u5f0f\u4e4b\u4e00\uff0c\u4ed6\u662f\u9996\u9078\u540d\u984d\uff0c\u6f14\u7b97\u6cd5\u9069\u7528\u6027\u5f88\u5ee3\u3002<\/p>\n","protected":false},"author":44,"featured_media":17921,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[480,1196,173],"tags":[1225,1226,1269],"class_list":["post-17918","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology","category-ai-","category-173","tag-1225","tag-1226","tag-1269"],"aioseo_notices":[],"views":3116,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/blog.tibame.com\/index.php?rest_route=\/wp\/v2\/posts\/17918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.tibame.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.tibame.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.tibame.com\/index.php?rest_route=\/wp\/v2\/users\/44"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.tibame.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17918"}],"version-history":[{"count":30,"href":"https:\/\/blog.tibame.com\/index.php?rest_route=\/wp\/v2\/posts\/17918\/revisions"}],"predecessor-version":[{"id":20053,"href":"https:\/\/blog.tibame.com\/index.php?rest_route=\/wp\/v2\/posts\/17918\/revisions\/20053"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.tibame.com\/index.php?rest_route=\/wp\/v2\/media\/17921"}],"wp:attachment":[{"href":"https:\/\/blog.tibame.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.tibame.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.tibame.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}