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\u96c6\u6210\u65b9\u6cd5\u7684\u4e3b\u8981\u7c7b\u578b<\/h3>\n

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\"\"<\/p>\n

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\u5f31\u5b66\u4e60\u8005\u5982\u4f55\u7ec4\u5408\uff1f<\/h4>\n

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\u5e73\u5747\uff1a<\/strong>\u5f53\u8f93\u51fa\u662f\u6570\u5b57\u65f6\uff0c\u6700\u5e38\u89c1\u7684\u7ec4\u5408\u57fa\u7840\u5b66\u4e60\u8005\u7684\u65b9\u6cd5\u662f\u5e73\u5747\u3002\u5e73\u5747\u53ef\u4ee5\u662f\u7b80\u5355\u5e73\u5747\u6216\u52a0\u6743\u5e73\u5747\u3002\u5bf9\u4e8e\u56de\u5f52\u95ee\u9898\uff0c\u7b80\u5355\u5e73\u5747\u5c06\u662f\u6240\u6709\u57fa\u7840\u6a21\u578b\u7684\u8bef\u5dee\u4e4b\u548c\u9664\u4ee5\u5b66\u4e60\u8005\u603b\u6570\u3002\u52a0\u6743\u5e73\u5747\u7684\u7ec4\u5408\u8f93\u51fa\u662f\u901a\u8fc7\u7ed9\u6bcf\u4e2a\u57fa\u7840\u5b66\u4e60\u8005\u8d4b\u4e88\u4e0d\u540c\u7684\u6743\u91cd\u6765\u5b9e\u73b0\u7684\u3002\u5bf9\u4e8e\u56de\u5f52\u95ee\u9898\uff0c\u6211\u4eec\u5c06\u6bcf\u4e2a\u57fa\u5b66\u4e60\u8005\u7684\u8bef\u5dee\u4e0e\u7ed9\u5b9a\u7684\u6743\u91cd\u76f8\u4e58\uff0c\u7136\u540e\u6c42\u548c\u3002<\/p>\n

\u6295\u7968\uff1a<\/strong>\u6295\u7968\u662f\u200b\u7ec4\u5408\u57fa\u7840\u5b66\u4e60\u8005\u6700\u5e38\u7528\u7684\u65b9\u5f0f\u3002\u6295\u7968\u53ef\u4ee5\u662f\u4e0d\u540c\u7684\u7c7b\u578b\uff0c\u5982\u7edd\u5bf9\u591a\u6570\u6295\u7968\u3001\u76f8\u5bf9\u591a\u6570\u6295\u7968\u3001\u52a0\u6743\u6295\u7968\u548c\u8f6f\u6295\u7968\u3002<\/p>\n

\u5bf9\u4e8e\u5206\u7c7b\u95ee\u9898\uff0c\u7edd\u5bf9\u591a\u6570\u6295\u7968\u7ed9\u6bcf\u4e2a\u5b66\u4e60\u8005\u4e00\u7968\uff0c\u4ed6\u4eec\u6295\u7968\u7ed9\u4e00\u4e2a\u7c7b\u6807\u7b7e\u3002\u65e0\u8bba\u54ea\u4e2a\u7c7b\u83b7\u5f97\u8d85\u8fc7 50% \u7684\u9009\u7968\uff0c\u90fd\u662f\u96c6\u6210\u7684\u9884\u6d4b\u7ed3\u679c\u3002\u4f46\u662f\uff0c\u5982\u679c\u6ca1\u6709\u4e00\u4e2a\u7c7b\u6807\u7b7e\u83b7\u5f97\u8d85\u8fc7 50% \u7684\u9009\u7968\uff0c\u5219\u4f1a\u7ed9\u51fa\u62d2\u7edd\u9009\u9879\uff0c\u8fd9\u610f\u5473\u7740\u7ec4\u5408\u96c6\u6210\u65e0\u6cd5\u505a\u51fa\u4efb\u4f55\u9884\u6d4b\u3002\u5728\u76f8\u5bf9\u591a\u6570\u6295\u7968\u4e2d\uff0c\u83b7\u5f97\u6700\u591a\u7968\u6570\u7684\u7c7b\u6807\u7b7e\u662f\u9884\u6d4b\u7ed3\u679c\uff0c\u8d85\u8fc750%\u7684\u7968\u6570\u5bf9\u7c7b\u4e0d\u662f\u5fc5\u9700\u7684\u3002\u610f\u601d\u662f\uff0c\u5982\u679c\u6211\u4eec\u6709\u4e09\u4e2a\u8f93\u51fa\u6807\u7b7e\uff0c\u4e09\u4e2a\u5f97\u5230\u7684\u7ed3\u679c\u90fd\u5c11\u4e8e50%\uff0c\u6bd4\u598240% 30% 30%\uff0c\u90a3\u4e48\u83b7\u5f9740%\u7684\u7c7b\u6807\u7b7e\u5c31\u662f\u96c6\u5408\u6a21\u578b\u7684\u9884\u6d4b\u7ed3\u679c\u3002\u52a0\u6743\u6295\u7968\uff0c\u5c31\u50cf\u52a0\u6743\u5e73\u5747\u4e00\u6837\uff0c\u6839\u636e\u5206\u7c7b\u5668\u7684\u91cd\u8981\u6027\u548c\u7279\u5b9a\u5b66\u4e60\u8005\u7684\u5f3a\u5ea6\u4e3a\u5206\u7c7b\u5668\u5206\u914d\u6743\u91cd\u3002\u8f6f\u6295\u7968\u7528\u4e8e\u6982\u7387\uff080\u52301\u4e4b\u95f4\u7684\u503c\uff09\u800c\u4e0d\u662f\u6807\u7b7e\uff08\u4e8c\u8fdb\u5236\u6216\u5176\u4ed6\uff09\u7c7b\u7684\u8f93\u51fa\u3002\u8f6f\u6295\u7968\u8fdb\u4e00\u6b65\u5206\u4e3a\u7b80\u5355\u8f6f\u6295\u7968\uff08\u5bf9\u6982\u7387\u8fdb\u884c\u7b80\u5355\u5e73\u5747\uff09\u548c\u52a0\u6743\u8f6f\u6295\u7968\uff08\u5c06\u6743\u91cd\u5206\u914d\u7ed9\u5b66\u4e60\u8005\uff0c\u6982\u7387\u4e58\u4ee5\u8fd9\u4e9b\u6743\u91cd\u5e76\u76f8\u52a0\uff09\u3002<\/p>\n

\u5b66\u4e60:<\/strong>\u53e6\u4e00\u79cd\u7ec4\u5408\u65b9\u6cd5\u662f\u901a\u8fc7\u5b66\u4e60\u8fdb\u884c\u7ec4\u5408\uff0c\u8fd9\u662fstacking\u96c6\u6210\u65b9\u6cd5\u4f7f\u7528\u7684\u3002\u5728\u8fd9\u79cd\u65b9\u6cd5\u4e2d\uff0c\u4e00\u4e2a\u79f0\u4e3a\u5143\u5b66\u4e60\u8005\u7684\u5355\u72ec\u5b66\u4e60\u8005\u5728\u65b0\u6570\u636e\u96c6\u4e0a\u8fdb\u884c\u8bad\u7ec3\uff0c\u4ee5\u7ec4\u5408\u4ece\u539f\u59cb\u673a\u5668\u5b66\u4e60\u6570\u636e\u96c6\u751f\u6210\u7684\u5176\u4ed6\u57fa\u7840\/\u5f31\u5b66\u4e60\u8005\u3002<\/p>\n

\u8bf7\u6ce8\u610f\uff0c\u65e0\u8bba\u662f boosting\u3001bagging\u8fd8\u662f stacking\uff0c\u6240\u6709\u8fd9\u4e09\u79cd\u96c6\u6210\u65b9\u6cd5\u90fd\u53ef\u4ee5\u4f7f\u7528\u540c\u8d28\u6216\u5f02\u8d28\u5f31\u5b66\u4e60\u8005\u751f\u6210\u3002\u6700\u5e38\u89c1\u7684\u505a\u6cd5\u662f\u4f7f\u7528\u540c\u8d28\u5f31\u5b66\u4e60\u8005\u8fdb\u884c Bagging \u548c Boosting\uff0c\u4f7f\u7528\u5f02\u8d28\u5f31\u5b66\u4e60\u8005\u8fdb\u884c Stacking\u3002\u4e0b\u56fe\u5f88\u597d\u5730\u5206\u7c7b\u4e86\u4e09\u79cd\u4e3b\u8981\u7684\u96c6\u6210\u65b9\u6cd5\u3002<\/p>\n

\"\"<\/p>\n

\u5bf9\u96c6\u6210\u65b9\u6cd5\u7684\u4e3b\u8981\u7c7b\u578b\u8fdb\u884c\u5206\u7c7b<\/p>\n

\u96c6\u6210\u591a\u6837\u6027<\/h3>\n

\u96c6\u6210\u591a\u6837\u6027\u662f\u6307\u57fa\u7840\u5b66\u4e60\u8005\u4e4b\u95f4\u7684\u5dee\u5f02\u6709\u591a\u5927\uff0c\u8fd9\u5bf9\u4e8e\u751f\u6210\u826f\u597d\u7684\u96c6\u6210\u6a21\u578b\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002\u7406\u8bba\u4e0a\u5df2\u7ecf\u8bc1\u660e\uff0c\u901a\u8fc7\u4e0d\u540c\u7684\u7ec4\u5408\u65b9\u6cd5\uff0c\u5b8c\u5168\u72ec\u7acb\uff08\u591a\u6837\u5316\uff09\u7684\u57fa\u7840\u5b66\u4e60\u8005\u53ef\u4ee5\u6700\u5927\u7a0b\u5ea6\u5730\u51cf\u5c11\u9519\u8bef\uff0c\u800c\u5b8c\u5168\uff08\u9ad8\u5ea6\uff09\u76f8\u5173\u7684\u5b66\u4e60\u8005\u4e0d\u4f1a\u5e26\u6765\u4efb\u4f55\u6539\u8fdb\u3002\u8fd9\u5728\u73b0\u5b9e\u751f\u6d3b\u4e2d\u786e\u5b9e\u662f\u4e00\u4e2a\u5177\u6709\u6311\u6218\u6027\u7684\u95ee\u9898\uff0c\u56e0\u4e3a\u6211\u4eec\u6b63\u5728\u8bad\u7ec3\u6240\u6709\u5f31\u5b66\u4e60\u8005\u901a\u8fc7\u4f7f\u7528\u76f8\u540c\u7684\u6570\u636e\u96c6\u6765\u89e3\u51b3\u76f8\u540c\u7684\u95ee\u9898\uff0c\u4ece\u800c\u5bfc\u81f4\u9ad8\u76f8\u5173\u6027\u3002\u5728\u6b64\u4e4b\u4e0a\uff0c\u6211\u4eec\u9700\u8981\u786e\u4fdd\u5f31\u5b66\u4e60\u8005\u4e0d\u662f\u771f\u6b63\u7cdf\u7cd5\u7684\u6a21\u578b\uff0c\u56e0\u4e3a\u8fd9\u751a\u81f3\u53ef\u80fd\u5bfc\u81f4\u96c6\u6210\u6027\u80fd\u6076\u5316\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u5c06\u5f3a\u800c\u51c6\u786e\u7684\u57fa\u7840\u5b66\u4e60\u8005\u7ec4\u5408\u8d77\u6765\uff0c\u4e5f\u53ef\u80fd\u6ca1\u6709\u5c06\u4e00\u4e9b\u5f31\u5b66\u4e60\u8005\u548c\u4e00\u4e9b\u5f3a\u5b66\u4e60\u8005\u7ec4\u5408\u8d77\u6765\u7684\u6548\u679c\u597d\u3002\u56e0\u6b64\uff0c\u9700\u8981\u5728\u57fa\u7840\u5b66\u4e60\u8005\u7684\u51c6\u786e\u7a0b\u5ea6\u4e0e\u57fa\u7840\u5b66\u4e60\u8005\u4e4b\u95f4\u7684\u5dee\u5f02\u4e4b\u95f4\u53d6\u5f97\u5e73\u8861\u3002<\/p>\n

\u5982\u4f55\u5b9e\u73b0\u96c6\u6210\u591a\u6837\u6027\uff1f<\/h4>\n

1. \u6570\u636e\u5904\u7406<\/h4>\n

\u6211\u4eec\u53ef\u4ee5\u5c06\u6211\u4eec\u7684\u6570\u636e\u96c6\u5212\u5206\u4e3a\u5b50\u96c6\u4f9b\u57fa\u7840\u5b66\u4e60\u8005\u4f7f\u7528\u3002\u5982\u679c\u673a\u5668\u5b66\u4e60\u6570\u636e\u96c6\u5f88\u5927\uff0c\u6211\u4eec\u53ef\u4ee5\u7b80\u5355\u5730\u5c06\u6570\u636e\u96c6\u5206\u6210\u76f8\u7b49\u7684\u90e8\u5206\uff0c\u7136\u540e\u8f93\u5165\u5230\u673a\u5668\u5b66\u4e60\u6a21\u578b\u4e2d\u3002\u5982\u679c\u6570\u636e\u96c6\u5f88\u5c0f\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u968f\u673a\u62bd\u6837\u66ff\u6362\uff0c\u4ece\u539f\u59cb\u6570\u636e\u96c6\u751f\u6210\u65b0\u7684\u6570\u636e\u96c6\u3002Bagging\u65b9\u6cd5\u4f7f\u7528bootstrapping\u6280\u672f\u6765\u751f\u6210\u65b0\u7684\u6570\u636e\u96c6\uff0c\u5b83\u57fa\u672c\u4e0a\u662f\u5e26\u66ff\u6362\u7684\u968f\u673a\u62bd\u6837\u3002\u901a\u8fc7bootstrapping\uff0c\u6211\u4eec\u80fd\u591f\u521b\u9020\u4e00\u4e9b\u968f\u673a\u6027\uff0c\u56e0\u4e3a\u6240\u6709\u751f\u6210\u7684\u6570\u636e\u96c6\u90fd\u5fc5\u987b\u62e5\u6709\u4e00\u4e9b\u4e0d\u540c\u7684\u503c\u3002\u7136\u800c\uff0c\u8bf7\u6ce8\u610f\uff0c\u5927\u591a\u6570\u503c(\u6839\u636e\u7406\u8bba\u7ea6\u4e3a67%)\u4ecd\u7136\u4f1a\u91cd\u590d\uff0c\u56e0\u6b64\u6570\u636e\u96c6\u4e0d\u4f1a\u5b8c\u5168\u72ec\u7acb\u3002<\/p>\n

2.\u8f93\u5165\u7279\u5f81<\/h4>\n

\u6240\u6709\u6570\u636e\u96c6\u90fd\u5305\u542b\u63d0\u4f9b\u6709\u5173\u6570\u636e\u4fe1\u606f\u7684\u7279\u5f81\u3002\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u7279\u5f81\u5b50\u96c6\u5e76\u751f\u6210\u4e0d\u540c\u7684\u6570\u636e\u96c6\u5e76\u5c06\u5176\u8f93\u5165\u6a21\u578b\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u4e00\u4e2a\u6a21\u578b\u4e2d\u7684\u6240\u6709\u7279\u5f81\u3002\u8fd9\u79cd\u65b9\u6cd5\u88ab\u968f\u673a\u68ee\u6797\u6280\u672f\u91c7\u7528\uff0c\u5f53\u6570\u636e\u4e2d\u5b58\u5728\u5927\u91cf\u5197\u4f59\u7279\u5f81\u65f6\u6709\u6548\u3002\u5f53\u6570\u636e\u96c6\u4e2d\u7684\u7279\u5f81\u5f88\u5c11\u65f6\uff0c\u6709\u6548\u6027\u4f1a\u964d\u4f4e\u3002<\/p>\n

3.\u5b66\u4e60\u53c2\u6570<\/h4>\n

\u8be5\u6280\u672f\u901a\u8fc7\u5bf9\u57fa\u7840\u5b66\u4e60\u7b97\u6cd5\u5e94\u7528\u4e0d\u540c\u7684\u53c2\u6570\u8bbe\u7f6e\uff0c\u5373\u8d85\u53c2\u6570\u8c03\u4f18\uff0c\u5728\u57fa\u7840\u5b66\u4e60\u8005\u4e2d\u4ea7\u751f\u968f\u673a\u6027\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u6539\u53d8\u6b63\u5219\u5316\u9879\uff0c\u53ef\u4ee5\u5c06\u4e0d\u540c\u7684\u521d\u59cb\u6743\u91cd\u5206\u914d\u7ed9\u5404\u4e2a\u795e\u7ecf\u7f51\u7edc\u3002<\/p>\n

\u96c6\u6210\u526a\u679d<\/h3>\n

\u6700\u540e\uff0c\u96c6\u6210\u526a\u679d\u6280\u672f\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u6709\u52a9\u4e8e\u83b7\u5f97\u66f4\u597d\u7684\u96c6\u6210\u6027\u80fd\u3002\u96c6\u6210\u526a\u679d(Ensemble Pruning)\u7684\u610f\u601d\u662f\uff0c\u6211\u4eec\u53ea\u7ec4\u5408\u5b66\u4e60\u8005\u7684\u5b50\u96c6\uff0c\u800c\u4e0d\u662f\u7ec4\u5408\u6240\u6709\u5f31\u5b66\u4e60\u8005\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u66f4\u5c0f\u7684\u96c6\u6210\u53ef\u4ee5\u8282\u7701\u5b58\u50a8\u548c\u8ba1\u7b97\u8d44\u6e90\uff0c\u4ece\u800c\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n

\u6700\u540e<\/h3>\n

\u672c\u6587\u4ec5\u4ec5\u662f\u673a\u5668\u5b66\u4e60\u96c6\u6210\u65b9\u6cd5\u6982\u8ff0\u3002\u5e0c\u671b\u5927\u5bb6\u80fd\u591f\u66f4\u52a0\u6df1\u5165\u5730\u8fdb\u884c\u7814\u7a76\uff0c\u66f4\u91cd\u8981\u7684\u662f\u80fd\u8d2d\u5c06\u7814\u7a76\u5e94\u7528\u4e8e\u73b0\u5b9e\u751f\u6d3b\u4e2d\u3002<\/p>\n

<\/div>\n

<\/g><\/svg><\/i> \"Loading\"<\/p>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

\u60f3\u8c61\u4e00\u4e0b\uff0c\u4f60\u6b63\u5728\u7f51\u4e0a\u8d2d\u7269\uff0c\u4f60\u53d1\u73b0\u6709\u4e24\u5bb6\u5e97\u94fa\u9500\u552e\u540c\u4e00\u79cd\u5546\u54c1\uff0c\u5b83\u4eec\u7684\u8bc4\u5206\u76f8\u540c\u3002\u7136\u800c\uff0c\u7b2c\u4e00\u5bb6\u53ea\u6709\u4e00\u4e2a\u4eba\u7684\u8bc4\u5206\uff0c\u7b2c\u4e8c\u5bb6 […]<\/p>\n

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