{"id":64427,"date":"2023-11-30T23:18:59","date_gmt":"2023-11-30T15:18:59","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=64427"},"modified":"2023-11-30T23:19:04","modified_gmt":"2023-11-30T15:19:04","slug":"%e4%ba%a4%e5%8f%89%e9%aa%8c%e8%af%81%e5%92%8c%e5%bc%95%e5%af%bc%e6%b3%95%e5%9c%a8%e7%bb%9f%e8%ae%a1%e5%bb%ba%e6%a8%a1%e4%b8%ad%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/64427.html","title":{"rendered":"\u4ea4\u53c9\u9a8c\u8bc1\u548c\u5f15\u5bfc\u6cd5\u5728\u7edf\u8ba1\u5efa\u6a21\u4e2d\u6709\u4ec0\u4e48\u533a\u522b"},"content":{"rendered":"\n
\n

\u4ea4\u53c9\u9a8c\u8bc1\u548c\u5f15\u5bfc\u6cd5\uff08Bootstrap\uff09\u662f\u7edf\u8ba1\u5efa\u6a21\u4e2d\u7528\u4e8e\u8bc4\u4f30\u548c\u4f18\u5316\u6a21\u578b\u6027\u80fd\u7684\u4e24\u79cd\u5173\u952e\u6280\u672f\u3002\u867d\u7136\u5b83\u4eec\u5171\u540c\u76ee\u6807\u662f\u63d0\u9ad8\u6a21\u578b\u7684\u51c6\u786e\u6027\u548c\u53ef\u9760\u6027\uff0c\u4f46\u5728\u65b9\u6cd5\u8bba\u3001\u5b9e\u73b0\u8fc7\u7a0b\u548c\u9002\u7528\u573a\u666f\u4e0a\u6709\u663e\u8457\u5dee\u5f02\u3002\u5b83\u4eec\u7684\u533a\u522b\u4e3b\u8981\u6709\uff1a1.\u57fa\u672c\u539f\u7406\u548c\u5b9e\u73b0\u8fc7\u7a0b\uff1b2.\u9002\u7528\u6027\u548c\u76ee\u6807\uff1b3.\u4e0d\u540c\u7c7b\u578b\u7684\u4ea4\u53c9\u9a8c\u8bc1\uff1b4.\u5f15\u5bfc\u6cd5\u7684\u5177\u4f53\u5e94\u7528\uff1b5.\u6a21\u578b\u8bc4\u4f30\u7684\u51c6\u786e\u6027\u548c\u504f\u5dee\uff1b6.\u8ba1\u7b97\u590d\u6742\u6027\u548c\u8d44\u6e90\u9700\u6c42\u3002<\/p>\n<\/blockquote>\n\n\n\n

1.\u57fa\u672c\u539f\u7406\u548c\u5b9e\u73b0\u8fc7\u7a0b<\/h2>\n\n\n\n

\u4ea4\u53c9\u9a8c\u8bc1\uff1a\u4ea4\u53c9\u9a8c\u8bc1\u901a\u8fc7\u5c06\u6570\u636e\u96c6\u5212\u5206\u4e3a\u591a\u4e2a\u5b50\u96c6\u6765\u8bc4\u4f30\u6a21\u578b\u6027\u80fd\u3002\u5728K\u6298\u4ea4\u53c9\u9a8c\u8bc1\u4e2d\uff0c\u6570\u636e\u88ab\u5206\u6210K\u4e2a\u5927\u5c0f\u76f8\u7b49\u7684\u90e8\u5206\uff0c\u6bcf\u4e2a\u90e8\u5206\u8f6e\u6d41\u4f5c\u4e3a\u6d4b\u8bd5\u96c6\uff0c\u5176\u4f59\u90e8\u5206\u4f5c\u4e3a\u8bad\u7ec3\u96c6\u3002\u4f8b\u5982\uff0c\u57285\u6298\u4ea4\u53c9\u9a8c\u8bc1\u4e2d\uff0c\u6570\u636e\u96c6\u88ab\u5206\u4e3a\u4e94\u90e8\u5206\uff0c\u6bcf\u90e8\u5206\u4f9d\u6b21\u6210\u4e3a\u6d4b\u8bd5\u96c6\uff0c\u800c\u5176\u4ed6\u56db\u90e8\u5206\u7528\u4e8e\u6a21\u578b\u8bad\u7ec3\u3002\u8fd9\u79cd\u65b9\u6cd5\u5141\u8bb8\u6240\u6709\u6570\u636e\u65e2\u88ab\u7528\u4e8e\u8bad\u7ec3\u53c8\u88ab\u7528\u4e8e\u6d4b\u8bd5\uff0c\u63d0\u4f9b\u4e86\u5168\u9762\u7684\u6027\u80fd\u8bc4\u4f30\u3002<\/p>\n\n\n\n

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2.\u9002\u7528\u6027\u548c\u76ee\u6807<\/h2>\n\n\n\n

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3.\u4e0d\u540c\u7c7b\u578b\u7684\u4ea4\u53c9\u9a8c\u8bc1<\/h2>\n\n\n\n

\u9664\u4e86K\u6298\u4ea4\u53c9\u9a8c\u8bc1\uff0c\u8fd8\u6709\u5176\u4ed6\u7c7b\u578b\u7684\u4ea4\u53c9\u9a8c\u8bc1\u65b9\u6cd5\uff0c\u5982\u7559\u4e00\u4ea4\u53c9\u9a8c\u8bc1\uff08LOOCV\uff09\uff0c\u5176\u4e2d\u6bcf\u6b21\u53ea\u7559\u4e0b\u4e00\u4e2a\u6837\u672c\u4f5c\u4e3a\u6d4b\u8bd5\u96c6\uff0c\u5176\u4f59\u6240\u6709\u6837\u672c\u7528\u4e8e\u8bad\u7ec3\u3002LOOCV\u9002\u7528\u4e8e\u6837\u672c\u91cf\u5c0f\u7684\u6570\u636e\u96c6\uff0c\u4f46\u8ba1\u7b97\u6210\u672c\u8f83\u9ad8\u3002<\/p>\n\n\n\n

4.\u5f15\u5bfc\u6cd5\u7684\u5177\u4f53\u5e94\u7528<\/h2>\n\n\n\n

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5.\u6a21\u578b\u8bc4\u4f30\u7684\u51c6\u786e\u6027\u548c\u504f\u5dee<\/h2>\n\n\n\n

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6.\u8ba1\u7b97\u590d\u6742\u6027\u548c\u8d44\u6e90\u9700\u6c42<\/h2>\n\n\n\n

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\u7ed3\u8bba<\/h2>\n\n\n\n

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\"\u4ea4\u53c9\u9a8c\u8bc1\u548c\u5f15\u5bfc\u6cd5\u5728\u7edf\u8ba1\u5efa\u6a21\u4e2d\u6709\u4ec0\u4e48\u533a\u522b\"<\/p>\n\n\n\n

\n\n\n\n

\u5e38\u89c1\u95ee\u7b54<\/strong><\/h2>\n\n\n\n
\n
    \n
  • \u95ee\uff1a\u4ea4\u53c9\u9a8c\u8bc1\u548c\u5f15\u5bfc\u6cd5\uff08Bootstrap\uff09\u5728\u7edf\u8ba1\u5efa\u6a21\u4e2d\u5404\u81ea\u7684\u4e3b\u8981\u76ee\u7684\u662f\u4ec0\u4e48\uff1f<\/strong> <\/li>\n\n\n\n
  • \u7b54\uff1a<\/strong>\u4ea4\u53c9\u9a8c\u8bc1\u4e3b\u8981\u7528\u4e8e\u8bc4\u4f30\u6a21\u578b\u7684\u6cdb\u5316\u80fd\u529b\uff0c\u5373\u6a21\u578b\u5728\u672a\u89c1\u6570\u636e\u4e0a\u7684\u8868\u73b0\u3002\u901a\u8fc7\u5c06\u6570\u636e\u96c6\u5206\u6210\u591a\u4e2a\u5c0f\u7ec4\uff0c\u8f6e\u6d41\u4f7f\u7528\u5176\u4e2d\u4e00\u90e8\u5206\u4f5c\u4e3a\u6d4b\u8bd5\u96c6\uff0c\u5176\u4f59\u4f5c\u4e3a\u8bad\u7ec3\u96c6\uff0c\u53ef\u4ee5\u51cf\u5c11\u6a21\u578b\u8bc4\u4f30\u7684\u504f\u5dee\u3002\u5f15\u5bfc\u6cd5\u5219\u4e3b\u8981\u7528\u4e8e\u4f30\u8ba1\u7edf\u8ba1\u91cf\u7684\u5206\u5e03\uff0c\u5982\u5747\u503c\u3001\u4e2d\u4f4d\u6570\u6216\u6a21\u578b\u53c2\u6570\u7684\u7f6e\u4fe1\u533a\u95f4\u3002\u5b83\u901a\u8fc7\u91cd\u590d\u4ece\u539f\u59cb\u6570\u636e\u96c6\u4e2d\u968f\u673a\u62bd\u6837\uff08\u5141\u8bb8\u91cd\u590d\uff09\u6765\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n<\/div>\n\n\n\n
    \n
      \n
    • \u95ee\uff1a\u4ea4\u53c9\u9a8c\u8bc1\u7684\u5e38\u89c1\u7c7b\u578b\u6709\u54ea\u4e9b\uff1f<\/strong> <\/li>\n\n\n\n
    • \u7b54\uff1a<\/strong>\u4ea4\u53c9\u9a8c\u8bc1\u7684\u5e38\u89c1\u7c7b\u578b\u5305\u62eck\u6298\u4ea4\u53c9\u9a8c\u8bc1\uff08k-fold cross-validation\uff09\uff0c\u5176\u4e2d\u6570\u636e\u96c6\u88ab\u5206\u6210k\u4e2a\u5927\u5c0f\u76f8\u7b49\u7684\u5b50\u96c6\uff1b\u7559\u4e00\u4ea4\u53c9\u9a8c\u8bc1\uff08leave-one-out cross-validation\uff09\uff0c\u6bcf\u6b21\u7559\u4e0b\u4e00\u4e2a\u6837\u672c\u4f5c\u4e3a\u6d4b\u8bd5\u96c6\uff1b\u548c\u5206\u5c42\u4ea4\u53c9\u9a8c\u8bc1\uff08stratified cross-validation\uff09\uff0c\u5c24\u5176\u9002\u7528\u4e8e\u5904\u7406\u7c7b\u522b\u4e0d\u5e73\u8861\u7684\u6570\u636e\u96c6\u3002<\/li>\n<\/ul>\n<\/div>\n\n\n\n
      \n
        \n
      • \u95ee\uff1a\u5f15\u5bfc\u6cd5\u5728\u7edf\u8ba1\u5efa\u6a21\u4e2d\u662f\u5982\u4f55\u8fd0\u4f5c\u7684\uff1f<\/strong> <\/li>\n\n\n\n
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