{"id":283,"date":"2024-03-29T09:28:49","date_gmt":"2024-03-29T01:28:49","guid":{"rendered":"https:\/\/www.xuzhe.tj.cn\/?p=283"},"modified":"2025-05-03T09:28:26","modified_gmt":"2025-05-03T01:28:26","slug":"diversity-matrix-based-performance-improvement-for-ensemble-learning","status":"publish","type":"post","link":"https:\/\/www.xuzhe.tj.cn\/index.php\/2024\/03\/29\/diversity-matrix-based-performance-improvement-for-ensemble-learning\/","title":{"rendered":"Diversity Matrix based Performance Improvement for Ensemble Learning \uff5c \u8bba\u6587\u7b14\u8bb0"},"content":{"rendered":"\n

\u96c6\u6210\u5b66\u4e60\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u673a\u5668\u5b66\u4e60\u6280\u672f\uff0c\u5b83\u901a\u8fc7\u7ed3\u5408\u591a\u4e2a\u6a21\u578b\u6765\u63d0\u9ad8\u5206\u7c7b\u7cbe\u5ea6\u3002\u4f46\u662f\uff0c\u5982\u679c\u6211\u4eec\u80fd\u591f\u4ece\u8fd9\u4e9b\u96c6\u6210\u4e2d squeezing even more performance <\/strong>\uff0c\u90a3\u4f1a\u600e\u4e48\u6837\u5462\uff1f<\/p>\n\n\n\n

\u7814\u7a76\u4eba\u5458\u5f00\u53d1\u4e86\u4e00\u79cd\u65b0\u7684\u57fa\u4e8e\u591a\u6837\u6027\u7684\u526a\u679d\u6280\u672f\uff0c\u4ece\u96c6\u6210\u4e2d\u9009\u62e9\u4e00\u4e2a\u9884\u6d4b\u5668\u5b50\u96c6\uff0c\u4ece\u800c\u663e\u8457\u63d0\u9ad8\u7cbe\u5ea6\u3002\u8fd9\u9879\u6280\u672f\u5728\u8111\u673a\u63a5\u53e3\u7684\u8111\u7535\u4fe1\u53f7\u5206\u7c7b\u4e2d\u663e\u793a\u51fa promising results \uff0c\u6700\u9ad8\u7cbe\u5ea6\u63d0\u5347\u4e86 7.14%\u3002<\/p>\n\n\n

\u611f\u5174\u8da3\u5417\uff1f<\/strong>\u6df1\u5165\u672c\u7ae0\uff0c\u63a2\u7d22\u8fd9\u79cd\u521b\u65b0\u65b9\u6cd5\u7684\u7ec6\u8282\u53ca\u5176\u5f7b\u5e95\u6539\u53d8\u96c6\u6210\u5b66\u4e60\u7684\u6f5c\u529b\uff01<\/p>\n\n\n

\u5185\u5bb9\u603b\u7ed3<\/h2>\n\n\n

<\u7814\u7a76\u80cc\u666f\u4e0e\u76ee\u7684><\/p>\n\n\n

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<\u521b\u65b0\u70b9><\/p>\n\n\n

\u8fd9\u7bc7\u8bba\u6587\u7684\u4e3b\u8981\u521b\u65b0\u70b9\u662f\u63d0\u51fa\u4e86\u4e00\u4e2a\u65b0\u7684\u57fa\u4e8e\u591a\u6837\u6027\u77e9\u9635\u7684\u526a\u679d\u6280\u672f\u3002\u8be5\u6280\u672f\u5229\u7528\u4e0d\u540c\u7684\u591a\u6837\u6027\u5ea6\u91cf\u65b9\u6cd5\u6765\u6784\u5efa\u591a\u6837\u6027\u77e9\u9635\uff0c\u5e76\u6839\u636e\u9884\u6d4b\u5668\u7684\u591a\u6837\u6027\u8d21\u732e\u5ea6\u9009\u62e9\u4e00\u4e2a\u5b50\u96c6\uff0c\u671f\u671b\u8be5\u5b50\u96c6\u80fd\u591f\u83b7\u5f97\u6bd4\u539f\u59cb\u96c6\u6210\u66f4\u9ad8\u7684\u7cbe\u5ea6\u3002<\/p>\n\n\n

<\u7ed3\u8bba><\/p>\n\n\n

\u8bba\u6587\u901a\u8fc7\u5b9e\u8bc1\u7814\u7a76\u8868\u660e\uff0c\u6240\u63d0\u51fa\u7684\u526a\u679d\u6280\u672f\u80fd\u591f\u6709\u6548\u5730\u63d0\u9ad8\u96c6\u6210\u5b66\u4e60\u7684\u5206\u7c7b\u7cbe\u5ea6\u3002\u5728\u8111\u7535\u4fe1\u53f7\u5206\u7c7b\u4efb\u52a1\u4e2d\uff0c\u8be5\u65b9\u6cd5\u53d6\u5f97\u4e86\u6700\u9ad8 7.14% \u7684\u7cbe\u5ea6\u63d0\u5347\uff0c\u5e76\u4e14\u5728\u4e0d\u540c\u7684\u6570\u636e\u96c6\u548c\u53c2\u6570\u8bbe\u7f6e\u4e0b\u8868\u73b0\u51fa\u7a33\u5b9a\u7684\u6027\u80fd\u3002<\/p>\n\n\n

<\u5b9e\u9a8c\u5185\u5bb9><\/p>\n\n\n

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<\u5bf9\u672c\u9886\u57df\u7684\u8d21\u732e><\/p>\n\n\n

\u8fd9\u7bc7\u8bba\u6587\u63d0\u51fa\u4e86\u4e00\u4e2a\u65b0\u7684\u96c6\u6210\u5b66\u4e60\u6027\u80fd\u63d0\u5347\u65b9\u6cd5\uff0c\u4e3a\u8be5\u9886\u57df\u7684\u7814\u7a76\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\u548c\u65b9\u5411\u3002\u8be5\u65b9\u6cd5\u7b80\u5355\u6613\u884c\uff0c\u5e76\u4e14\u80fd\u591f\u6709\u6548\u5730\u63d0\u9ad8\u5206\u7c7b\u7cbe\u5ea6\uff0c\u5177\u6709\u91cd\u8981\u7684\u7406\u8bba\u610f\u4e49\u548c\u5e94\u7528\u4ef7\u503c\u3002<\/p>\n\n\n

<\u4e3b\u8981\u5b9a\u7406><\/p>\n\n\n

\u8bba\u6587\u6ca1\u6709\u63d0\u51fa\u65b0\u7684\u4e3b\u8981\u5b9a\u7406\uff0c\u800c\u662f\u57fa\u4e8e\u73b0\u6709\u7684\u96c6\u6210\u5b66\u4e60\u7406\u8bba\u548c\u591a\u6837\u6027\u5ea6\u91cf\u65b9\u6cd5\uff0c\u63d0\u51fa\u4e86\u4e00\u4e2a\u65b0\u7684\u526a\u679d\u7b97\u6cd5\u3002<\/p>\n\n\n

<\u5b58\u5728\u7684\u4e0d\u8db3><\/p>\n\n\n

\u8bba\u6587\u63d0\u51fa\u7684\u65b9\u6cd5\u8fd8\u5b58\u5728\u4e00\u4e9b\u4e0d\u8db3\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n

    \n
  • \u526a\u679d\u7b97\u6cd5\u7684\u6027\u80fd\u53d7\u591a\u6837\u6027\u5ea6\u91cf\u65b9\u6cd5\u7684\u5f71\u54cd\u8f83\u5927\uff0c\u9700\u8981\u8fdb\u4e00\u6b65\u7814\u7a76\u5982\u4f55\u9009\u62e9\u6700\u4f73\u7684\u5ea6\u91cf\u65b9\u6cd5\u3002<\/li>\n
  • \u8be5\u65b9\u6cd5\u76ee\u524d\u4e3b\u8981\u9488\u5bf9\u4e8c\u5206\u7c7b\u95ee\u9898\uff0c\u9700\u8981\u8fdb\u4e00\u6b65\u6269\u5c55\u5230\u591a\u5206\u7c7b\u95ee\u9898\u3002<\/li>\n
  • \u8fd9\u7bc7\u8bba\u6587\u63d0\u51fa\u7684\u65b9\u6cd5\u4e3b\u8981\u5173\u6ce8\u9884\u6d4b\u5668\u4e4b\u95f4\u7684\u591a\u6837\u6027\uff0c\u800c\u6ca1\u6709\u76f4\u63a5\u8003\u8651\u9884\u6d4b\u5668\u7684\u7cbe\u5ea6\u3002\u4f5c\u8005\u8ba4\u4e3a\uff0c\u5982\u679c\u9884\u6d4b\u5668\u4e4b\u95f4\u5177\u6709\u8f83\u9ad8\u7684\u591a\u6837\u6027\uff0c\u5b83\u4eec\u72af\u9519\u7684\u53ef\u80fd\u6027\u5c31\u4f1a\u964d\u4f4e\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u96c6\u6210\u7684\u6574\u4f53\u7cbe\u5ea6\u3002\u7136\u800c\uff0c\u8fd9\u4e5f\u53ef\u80fd\u5bfc\u81f4\u4e00\u4e2a\u95ee\u9898\uff0c\u5373\u5982\u679c\u9009\u62e9\u7684\u9884\u6d4b\u5668\u5b50\u96c6\u7684\u7cbe\u5ea6\u90fd\u5f88\u4f4e\uff0c\u5373\u4f7f\u5b83\u4eec\u4e4b\u95f4\u5177\u6709\u8f83\u9ad8\u7684\u591a\u6837\u6027\uff0c\u96c6\u6210\u7684\u6574\u4f53\u7cbe\u5ea6\u4e5f\u4e0d\u4f1a\u5f88\u9ad8\u3002
    <\/li>\n<\/ul>\n\n\n

    <\u672a\u6765\u7684\u5de5\u4f5c><\/p>\n\n\n

    \u672a\u6765\u7684\u5de5\u4f5c\u53ef\u4ee5\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u5c55\u5f00\uff1a<\/p>\n\n\n

      \n
    • \u7814\u7a76\u81ea\u9002\u5e94\u7684\u5305\u5927\u5c0f\u9009\u62e9\u7b56\u7565\uff0c\u4ee5\u6700\u5927\u5316\u7cbe\u5ea6\u63d0\u5347\u5e76\u907f\u514d\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n
    • \u5c06\u8be5\u65b9\u6cd5\u6269\u5c55\u5230\u591a\u5206\u7c7b\u95ee\u9898\uff0c\u5e76\u7814\u7a76\u5176\u5728\u5176\u4ed6\u5e94\u7528\u9886\u57df\u7684\u6548\u679c\u3002<\/li>\n
    • \u63a2\u7d22\u4e0e\u5176\u4ed6\u96c6\u6210\u5b66\u4e60\u6280\u672f\u7ed3\u5408\u7684\u53ef\u80fd\u6027\uff0c\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8\u5206\u7c7b\u6027\u80fd\u3002<\/li>\n
    • \u603b\u800c\u8a00\u4e4b\uff0c\u8fd9\u7bc7\u8bba\u6587\u63d0\u51fa\u4e86\u4e00\u4e2a\u65b0\u9896\u4e14\u6709\u6548\u7684\u96c6\u6210\u5b66\u4e60\u6027\u80fd\u63d0\u5347\u65b9\u6cd5\uff0c\u5e76\u901a\u8fc7\u5b9e\u9a8c\u8bc1\u660e\u4e86\u5176\u6709\u6548\u6027\u3002\u8be5\u65b9\u6cd5\u4e3a\u96c6\u6210\u5b66\u4e60\u9886\u57df\u7684\u7814\u7a76\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\uff0c\u5e76\u5177\u6709\u91cd\u8981\u7684\u5e94\u7528\u4ef7\u503c\u3002\u672a\u6765\u7684\u5de5\u4f5c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5b8c\u5584\u8be5\u65b9\u6cd5\uff0c\u5e76\u5c06\u5176\u5e94\u7528\u5230\u66f4\u5e7f\u6cdb\u7684\u9886\u57df\u3002
      <\/li>\n<\/ul>\n\n\n

      \u8bba\u6587\u7ed3\u6784<\/h2>\n\n\n
        \n
      1. \u5f15\u8a00<\/li>\n<\/ol>\n\n\n
          \n
        • \u4ecb\u7ecd\u4e86\u96c6\u6210\u5b66\u4e60\u7684\u6982\u5ff5\u4ee5\u53ca\u5176\u5728\u5206\u7c7b\u95ee\u9898\u4e2d\u7684\u5e94\u7528\u3002<\/li>\n
        • \u63d0\u51fa\u4e86\u4e00\u4e2a\u57fa\u4e8e\u591a\u6837\u6027\u77e9\u9635\u7684\u526a\u679d\u6280\u672f\uff0c\u7528\u4e8e\u63d0\u9ad8\u96c6\u6210\u5b66\u4e60\u7684\u7cbe\u5ea6\u3002<\/li>\n<\/ul>\n\n\n
            \n
          1. \u76f8\u5173\u5de5\u4f5c<\/li>\n<\/ol>\n\n\n
              \n
            • \u56de\u987e\u4e86\u73b0\u6709\u7684\u96c6\u6210\u5b66\u4e60\u6027\u80fd\u63d0\u5347\u65b9\u6cd5\uff0c\u5305\u62ec\u8d85\u53c2\u6570\u8c03\u6574\u3001\u7279\u5f81\u9009\u62e9\u548c\u964d\u7ef4\u7b49\u3002<\/li>\n
            • \u8ba8\u8bba\u4e86\u591a\u6837\u6027\u5728\u96c6\u6210\u5b66\u4e60\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/li>\n<\/ul>\n\n\n
                \n
              1. \u7406\u8bba\u80cc\u666f<\/li>\n<\/ol>\n\n\n
                  \n
                • \u4ecb\u7ecd\u4e86\u5c0f\u6ce2\u53d8\u6362\u548c\u57fa\u4e8e\u5c0f\u6ce2\u7684\u80fd\u91cf\u71b5\u7279\u5f81\u63d0\u53d6\u65b9\u6cd5\u3002<\/li>\n
                • \u8be6\u7ec6\u89e3\u91ca\u4e86\u96c6\u6210\u5206\u7c7b\u7684\u6982\u5ff5\uff0c\u5305\u62ec\u72ec\u7acb\u96c6\u6210\u548c\u4f9d\u8d56\u96c6\u6210\u3002<\/li>\n
                • \u4ecb\u7ecd\u4e86 bagging \u96c6\u6210\u5b66\u4e60\u65b9\u6cd5\u548c\u591a\u6570\u6295\u7968\u6280\u672f\u3002<\/li>\n
                • \u4ecb\u7ecd\u4e86\u8bba\u6587\u4e2d\u4f7f\u7528\u7684\u56db\u79cd\u591a\u6837\u6027\u5ea6\u91cf\u65b9\u6cd5\uff1a\u4f59\u5f26\u76f8\u4f3c\u5ea6\u3001\u9ad8\u65af\u76f8\u4f3c\u5ea6\u3001Kullback-Leibler \u6563\u5ea6\u548c\u6b27\u51e0\u91cc\u5f97\u8ddd\u79bb\u3002<\/li>\n<\/ul>\n\n\n

                  4. proposed method <\/strong><\/p>\n\n\n

                    \n
                  • \u8be6\u7ec6\u4ecb\u7ecd\u4e86\u57fa\u4e8e\u591a\u6837\u6027\u77e9\u9635\u7684\u526a\u679d\u6280\u672f\uff0c\u5e76\u901a\u8fc7\u793a\u4f8b\u8fdb\u884c\u4e86\u8bf4\u660e\u3002<\/li>\n<\/ul>\n\n\n

                    \u63d0\u4f9b\u4e86\u8be5\u65b9\u6cd5\u7684\u4f2a\u4ee3\u7801\u7b97\u6cd5\u3002<\/p>\n\n\n

                      \n
                    1. \u7ed3\u679c\u4e0e\u8ba8\u8bba<\/li>\n<\/ol>\n\n\n
                        \n
                      • \u4ecb\u7ecd\u4e86\u5b9e\u9a8c\u4e2d\u4f7f\u7528\u7684\u6570\u636e\u96c6\uff0c\u5305\u62ec\u9e22\u5c3e\u82b1\u6570\u636e\u96c6\u548c\u8111\u7535\u4fe1\u53f7\u6570\u636e\u96c6\u3002<\/li>\n
                      • \u8ba8\u8bba\u4e86\u5b9e\u9a8c\u8bbe\u7f6e\uff0c\u5305\u62ec\u7279\u5f81\u63d0\u53d6\u3001\u5206\u7c7b\u5668\u914d\u7f6e\u548c\u53c2\u6570\u8bbe\u7f6e\u7b49\u3002<\/li>\n
                      • \u5206\u6790\u4e86\u5b9e\u9a8c\u7ed3\u679c\uff0c\u8868\u660e\u8be5\u65b9\u6cd5\u80fd\u591f\u6709\u6548\u5730\u63d0\u9ad8\u96c6\u6210\u5b66\u4e60\u7684\u5206\u7c7b\u7cbe\u5ea6\u3002<\/li>\n
                      • \u8ba8\u8bba\u4e86\u8be5\u65b9\u6cd5\u7684\u5c40\u9650\u6027\u548c\u672a\u6765\u7684\u7814\u7a76\u65b9\u5411\u3002<\/li>\n<\/ul>\n\n\n
                          \n
                        1. \u7ed3\u8bba\u4e0e\u672a\u6765\u5de5\u4f5c<\/li>\n<\/ol>\n\n\n
                            \n
                          • \u603b\u7ed3\u4e86\u8bba\u6587\u7684\u4e3b\u8981\u7ed3\u8bba\uff0c\u5e76\u5c55\u671b\u4e86\u672a\u6765\u7684\u7814\u7a76\u65b9\u5411\u3002
                            <\/li>\n<\/ul>\n\n\n

                            \u4e00\u4e9b\u5efa\u8bae\uff1a<\/p>\n\n\n

                            \u5982\u679c\u60a8\u60f3\u4e86\u89e3\u8bba\u6587\u7684\u6838\u5fc3\u601d\u60f3\uff0c\u53ef\u4ee5\u91cd\u70b9\u9605\u8bfb\u5f15\u8a00\u548c proposed method \u90e8\u5206\u3002<\/p>\n\n\n

                            \u5982\u679c\u60a8\u60f3\u4e86\u89e3\u5b9e\u9a8c\u7ed3\u679c\uff0c\u53ef\u4ee5\u91cd\u70b9\u9605\u8bfb\u7ed3\u679c\u4e0e\u8ba8\u8bba\u90e8\u5206\u3002<\/p>\n\n\n

                            \u5982\u679c\u60a8\u60f3\u4e86\u89e3\u8be5\u65b9\u6cd5\u7684\u5c40\u9650\u6027\u548c\u672a\u6765\u7684\u7814\u7a76\u65b9\u5411\uff0c\u53ef\u4ee5\u91cd\u70b9\u9605\u8bfb\u7ed3\u8bba\u4e0e\u672a\u6765\u5de5\u4f5c\u90e8\u5206\u3002<\/p>\n\n\n

                            \u8bba\u6587\u63d0\u51fa\u7684\u65b9\u6cd5<\/h2>\n\n\n

                            \u8fd9\u7bc7\u8bba\u6587\u63d0\u51fa\u4e86\u4e00\u4e2a\u57fa\u4e8e\u591a\u6837\u6027\u77e9\u9635\u7684\u526a\u679d\u6280\u672f\uff0c\u7528\u4e8e\u63d0\u9ad8\u96c6\u6210\u5b66\u4e60\u7684\u5206\u7c7b\u7cbe\u5ea6\u3002\u8be5\u65b9\u6cd5\u7684\u4e3b\u8981\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n\n\n

                              \n
                            • \u6784\u5efa\u96c6\u6210\u5206\u7c7b\u5668\uff1a \u4f7f\u7528 bagging \u65b9\u6cd5\u6784\u5efa\u591a\u4e2a\u57fa\u5206\u7c7b\u5668\uff0c\u5e76\u4f7f\u7528\u591a\u6570\u6295\u7968\u6280\u672f\u8fdb\u884c\u7ec4\u5408\u3002<\/li>\n
                            • \u521b\u5efa\u591a\u6837\u6027\u77e9\u9635\uff1a \u4f7f\u7528\u9009\u5b9a\u7684\u591a\u6837\u6027\u5ea6\u91cf\u65b9\u6cd5\u8ba1\u7b97\u6bcf\u5bf9\u9884\u6d4b\u5668\u4e4b\u95f4\u7684\u5dee\u5f02\u6027\uff0c\u5e76\u6784\u5efa\u4e00\u4e2a\u591a\u6837\u6027\u77e9\u9635\u3002<\/li>\n
                            • \u9009\u62e9\u9884\u6d4b\u5668\u5b50\u96c6\uff1a \u6839\u636e\u591a\u6837\u6027\u77e9\u9635\uff0c\u9009\u62e9\u591a\u6837\u6027\u8d21\u732e\u5ea6\u6700\u9ad8\u7684 k \u4e2a\u9884\u6d4b\u5668\u3002<\/li>\n
                            • \u5e94\u7528\u591a\u6570\u6295\u7968\uff1a \u5bf9\u9009\u5b9a\u7684\u9884\u6d4b\u5668\u5b50\u96c6\u5e94\u7528\u591a\u6570\u6295\u7968\u6280\u672f\uff0c\u5f97\u5230\u6700\u7ec8\u7684\u5206\u7c7b\u7ed3\u679c\u3002<\/li>\n<\/ul>\n\n\n

                              \u8be5\u65b9\u6cd5\u7684\u6838\u5fc3\u601d\u60f3\u662f\uff0c\u901a\u8fc7\u9009\u62e9\u591a\u6837\u6027\u8f83\u9ad8\u7684\u9884\u6d4b\u5668\u5b50\u96c6\uff0c\u53ef\u4ee5\u63d0\u9ad8\u96c6\u6210\u5b66\u4e60\u7684\u6574\u4f53\u6027\u80fd\u3002\u8fd9\u662f\u56e0\u4e3a\uff0c\u5982\u679c\u9884\u6d4b\u5668\u4e4b\u95f4\u5177\u6709\u8f83\u9ad8\u7684\u591a\u6837\u6027\uff0c\u5b83\u4eec\u72af\u9519\u7684\u53ef\u80fd\u6027\u5c31\u4f1a\u964d\u4f4e\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u96c6\u6210\u7684\u9c81\u68d2\u6027\u548c\u7cbe\u5ea6\u3002<\/p>\n\n\n

                              \u8bba\u6587\u4e2d\u4f7f\u7528\u4e86\u56db\u79cd\u4e0d\u540c\u7684\u591a\u6837\u6027\u5ea6\u91cf\u65b9\u6cd5\uff1a\u4f59\u5f26\u76f8\u4f3c\u5ea6\u3001\u9ad8\u65af\u76f8\u4f3c\u5ea6\u3001Kullback-Leibler \u6563\u5ea6\u548c\u6b27\u51e0\u91cc\u5f97\u8ddd\u79bb\u3002\u5b9e\u9a8c\u7ed3\u679c\u8868\u660e\uff0c\u8be5\u65b9\u6cd5\u5728\u4e0d\u540c\u7684\u6570\u636e\u96c6\u548c\u53c2\u6570\u8bbe\u7f6e\u4e0b\u90fd\u80fd\u591f\u53d6\u5f97\u8f83\u597d\u7684\u6548\u679c\u3002<\/p>\n\n\n

                              \u603b\u800c\u8a00\u4e4b\uff0c\u8fd9\u7bc7\u8bba\u6587\u63d0\u51fa\u7684\u57fa\u4e8e\u591a\u6837\u6027\u77e9\u9635\u7684\u526a\u679d\u6280\u672f\u662f\u4e00\u79cd\u7b80\u5355\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u96c6\u6210\u5b66\u4e60\u7684\u5206\u7c7b\u7cbe\u5ea6\u3002\u8be5\u65b9\u6cd5\u6613\u4e8e\u5b9e\u73b0\uff0c\u5e76\u4e14\u53ef\u4ee5\u4e0e\u4e0d\u540c\u7684\u96c6\u6210\u5b66\u4e60\u6280\u672f\u548c\u591a\u6837\u6027\u5ea6\u91cf\u65b9\u6cd5\u7ed3\u5408\u4f7f\u7528\u3002<\/p>\n\n\n

                              \u57fa\u4e8e\u591a\u6837\u6027\u77e9\u9635\u7684\u526a\u679d\u6280\u672f\u7b97\u6cd5\u6b65\u9aa4<\/h2>\n\n\n

                              \u57fa\u4e8e\u591a\u6837\u6027\u77e9\u9635\u7684\u526a\u679d\u6280\u672f\u7b97\u6cd5\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n\n\n

                              \u8f93\u5165\uff1a<\/p>\n\n\n

                                \n
                              • \u9884\u6d4b\u5668\u96c6\u5408 P = P1, P2, …, Pm\uff0c\u5176\u4e2d m \u662f\u9884\u6d4b\u5668\u7684\u603b\u6570\u3002<\/li>\n
                              • \u5b9e\u9645\u51b3\u7b56\u7c7b\u5411\u91cf A\u3002<\/li>\n
                              • \u539f\u59cb\u9884\u6d4b\u51b3\u7b56\u7c7b\u5411\u91cf A’\uff08\u526a\u679d\u524d\u83b7\u5f97\uff09\u3002<\/li>\n<\/ul>\n\n\n

                                \u6b65\u9aa4\uff1a<\/p>\n\n\n

                                  \n
                                1. \u521b\u5efa\u591a\u6837\u6027\u77e9\u9635 cM\uff1a
                                    \n
                                  • \u4f7f\u7528\u9009\u5b9a\u7684\u591a\u6837\u6027\u5ea6\u91cf\u65b9\u6cd5 DM\uff08\u4f8b\u5982\uff0c\u4f59\u5f26\u76f8\u4f3c\u5ea6\u3001\u9ad8\u65af\u76f8\u4f3c\u5ea6\u3001Kullback-Leibler \u6563\u5ea6\u6216\u6b27\u51e0\u91cc\u5f97\u8ddd\u79bb\uff09\u8ba1\u7b97\u6bcf\u5bf9\u9884\u6d4b\u5668\u4e4b\u95f4\u7684\u5dee\u5f02\u6027\u3002\n <\/em><\/li>\n
                                  • \u5c06\u8ba1\u7b97\u5f97\u5230\u7684\u591a\u6837\u6027\u503c\u6784\u5efa\u6210\u4e00\u4e2a m \u00d7 m \u7684\u77e9\u9635 cM\uff0c\u5176\u4e2d cM(i, j) \u8868\u793a\u9884\u6d4b\u5668 Pi \u548c Pj \u4e4b\u95f4\u7684\u591a\u6837\u6027\u3002<\/li>\n <\/ul><\/li>\n
                                  • \u9009\u62e9\u526a\u679d\u540e\u7684\u9884\u6d4b\u5668\u6570\u91cf k\uff1a
                                      \n
                                    • \u5728\u8bba\u6587\u4e2d\uff0c\u4f5c\u8005\u5efa\u8bae\u9009\u62e9 k = [m\/2 ]\uff0c\u5373\u526a\u679d\u540e\u4fdd\u7559\u4e00\u534a\u7684\u9884\u6d4b\u5668\u3002<\/li>\n <\/ul><\/li>\n
                                    • \u5bfb\u627e cM \u4e2d\u6700\u9ad8\u7684 k \u4e2a\u591a\u6837\u6027\u503c\uff1a(\u8fd9\u4e00\u6b65\u9aa4\u5e76\u6ca1\u6709\u9009\u62e9\u9884\u6d4b\u5668\uff0c\u800c\u662f\u4e24\u8f86\u9884\u6d4b\u5668\u5bf9\u5e94\u7684\u591a\u6837\u6027\u503c)
                                        \n
                                      • \u4ece\u591a\u6837\u6027\u77e9\u9635 cM \u4e2d\u627e\u5230\u6700\u9ad8\u7684 k \u4e2a\u591a\u6837\u6027\u503c\uff0c\u8bb0\u4e3a topDk\u3002<\/li>\n <\/ul><\/li>\n
                                      • \u8ba1\u7b97\u6bcf\u4e2a\u9884\u6d4b\u5668\u7684\u603b\u591a\u6837\u6027\u8d21\u732e\u503c\uff1a
                                          \n
                                        • \u5bf9\u4e8e\u6bcf\u4e2a\u9884\u6d4b\u5668 Pi\uff0c\u8ba1\u7b97\u5176\u5bf9 topDk \u7684\u8d21\u732e\u503c\uff0c\u8bb0\u4e3a sM(i)\u3002<\/li>\n
                                        • sM(i) \u7684\u8ba1\u7b97\u65b9\u6cd5\u662f\u5c06 Pi \u4e0e\u5176\u4ed6\u9884\u6d4b\u5668\u4e4b\u95f4\u7684\u591a\u6837\u6027\u503c\u76f8\u52a0\uff0c\u4f46\u53ea\u8003\u8651 topDk \u4e2d\u7684\u591a\u6837\u6027\u503c\u3002(\u8fd9\u4e00\u6b65\u9aa4\u624d\u5f00\u59cb\u9009\u62e9\u9884\u6d4b\u5668\uff09<\/li>\n <\/ul><\/li>\n
                                        • \u5bf9 sM \u8fdb\u884c\u964d\u5e8f\u6392\u5e8f\u5e76\u786e\u5b9a\u591a\u6837\u6027\u8d21\u732e\u5ea6\u6700\u9ad8\u7684 k \u4e2a\u9884\u6d4b\u5668\uff1a
                                            \n
                                          • \u5c06 sM \u4e2d\u7684\u503c\u8fdb\u884c\u964d\u5e8f\u6392\u5e8f\u3002<\/li>\n
                                          • \u9009\u62e9 sM \u4e2d\u503c\u6700\u9ad8\u7684 k \u4e2a\u9884\u6d4b\u5668\uff0c\u4f5c\u4e3a\u526a\u679d\u540e\u7684\u9884\u6d4b\u5668\u5b50\u96c6\u3002<\/li>\n
                                          • \u521b\u5efa k \u4e2a\u9884\u6d4b\u5668\u7684\u5b50\u96c6\uff1a<\/li>\n
                                          • \u6839\u636e\u6b65\u9aa4 5 \u4e2d\u9009\u5b9a\u7684\u9884\u6d4b\u5668\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u9884\u6d4b\u5668\u5b50\u96c6 P’\u3002<\/li>\n <\/ul><\/li>\n
                                          • \u5e94\u7528\u591a\u6570\u6295\u7968\uff1a
                                              \n
                                            • \u5bf9 P’ \u4e2d\u7684\u9884\u6d4b\u5668\u5e94\u7528\u591a\u6570\u6295\u7968\u6280\u672f\uff0c\u5f97\u5230\u65b0\u7684\u51b3\u7b56\u7c7b\u5411\u91cf A”\u3002<\/li>\n <\/ul><\/li>\n
                                            • \u8ba1\u7b97\u7cbe\u5ea6\uff1a
                                                \n
                                              • \u4f7f\u7528 A \u548c A’ \u8ba1\u7b97\u539f\u59cb\u7cbe\u5ea6 acc1\u3002<\/li>\n
                                              • \u4f7f\u7528 A \u548c A” \u8ba1\u7b97\u65b0\u7684\u7cbe\u5ea6 acc2\u3002<\/li>\n
                                              • \u6bd4\u8f83\u7cbe\u5ea6\u5e76\u8fd4\u56de\u7ed3\u679c\uff1a
                                                  \n
                                                • \u5982\u679c acc2 > acc1\uff0c\u5219\u4fdd\u7559 acc2 \u4f5c\u4e3a\u6700\u7ec8\u7cbe\u5ea6\u3002<\/li>\n
                                                • \u5982\u679c acc2 == acc1\uff0c\u5219\u53ef\u4ee5\u9009\u62e9 acc1 \u6216 acc2 \u4f5c\u4e3a\u6700\u7ec8\u7cbe\u5ea6\u3002<\/li>\n
                                                • \u5982\u679c acc2 < acc1\uff0c\u5219\u4fdd\u7559 acc1 \u4f5c\u4e3a\u6700\u7ec8\u7cbe\u5ea6\u3002<\/li>\n <\/ul><\/li>\n <\/ul><\/li>\n
                                                • \u8f93\u51fa\uff1a
                                                    \n
                                                  • \u526a\u679d\u540e\u7684\u9884\u6d4b\u5668\u5b50\u96c6 P’\u3002<\/li>\n
                                                  • \u6700\u7ec8\u7cbe\u5ea6 ACC\u3002<\/li>\n <\/ul><\/li>\n<\/ol>\n\n\n

                                                    \u6ce8\u610f\uff1a<\/p>\n\n\n

                                                      \n
                                                    • \u8be5\u7b97\u6cd5\u4e2d\u4f7f\u7528\u7684\u591a\u6837\u6027\u5ea6\u91cf\u65b9\u6cd5 DM \u53ef\u4ee5\u6839\u636e\u5177\u4f53\u95ee\u9898\u8fdb\u884c\u9009\u62e9\u3002\n <\/em><\/li>\n
                                                    • \u526a\u679d\u540e\u7684\u9884\u6d4b\u5668\u6570\u91cf k \u4e5f\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u95ee\u9898\u8fdb\u884c\u8c03\u6574\u3002<\/li>\n
                                                    • \u5e0c\u671b\u8fd9\u4e2a\u8be6\u7ec6\u7684\u7b97\u6cd5\u6b65\u9aa4\u80fd\u591f\u5e2e\u52a9\u60a8\u7406\u89e3\u57fa\u4e8e\u591a\u6837\u6027\u77e9\u9635\u7684\u526a\u679d\u6280\u672f\u3002
                                                      <\/li>\n<\/ul>\n\n\n

                                                      \u56db\u79cd\u5dee\u5f02\u5ea6\u8ba1\u7b97\u65b9\u6cd5\u7684\u6570\u5b66\u516c\u5f0f<\/h2>\n\n\n

                                                      \u5047\u8bbe\u6211\u4eec\u6709 m \u4e2a\u9884\u6d4b\u5668\uff0c\u6bcf\u4e2a\u9884\u6d4b\u5668\u5bf9 n \u4e2a\u6d4b\u8bd5\u6837\u672c\u8fdb\u884c\u9884\u6d4b\uff0c\u5f97\u5230\u4e00\u4e2a n \u7ef4\u7684\u9884\u6d4b\u5411\u91cf\u3002\u4ee4 Pi \u548c Pj \u5206\u522b\u8868\u793a\u4e24\u4e2a\u9884\u6d4b\u5668\uff0c\u5b83\u4eec\u7684\u9884\u6d4b\u5411\u91cf\u5206\u522b\u4e3a\uff1a<\/p>\n\n\n

                                                      \\(\\displaystyle P_i = (p_{i1}, p_{i2}, …, p_{in})\\)<\/p>\n\n\n

                                                      \\(\\displaystyle P_j = (p_{j1}, p_{j2}, …, p_{jn})\\)<\/p>\n\n\n

                                                      \u5219\u56db\u79cd\u5dee\u5f02\u5ea6\u8ba1\u7b97\u65b9\u6cd5\u7684\u6570\u5b66\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n

                                                        \n
                                                      1. \u4f59\u5f26\u5dee\u5f02\u5ea6<\/li>\n<\/ol>\n\n\n

                                                        \\(\\displaystyle DM1(P_i, P_j) = 1 – \\frac{P_i \\cdot P_j}{||P_i|| ||P_j||}\\)<\/p>\n\n\n

                                                          \n
                                                        1. \u9ad8\u65af\u5dee\u5f02\u5ea6<\/li>\n<\/ol>\n\n\n

                                                          \\(\\displaystyle DM2(P_i, P_j, \\sigma) = 1 – exp(-\\frac{||P_i – P_j||^2}{2\\sigma^2})\r\n\\)<\/p>\n\n\n

                                                            \n
                                                          1. Kullback-Leibler \u6563\u5ea6 (KLD)<\/li>\n<\/ol>\n\n\n

                                                            \\(\\displaystyle DM3(P_i, P_j) = \\sum_i (p_{ii} * log(\\frac{p_{ii}}{p_{ji}}))\r\n\\)<\/p>\n\n\n

                                                              \n
                                                            1. \u6b27\u51e0\u91cc\u5f97\u8ddd\u79bb<\/li>\n<\/ol>\n\n\n

                                                              \\(\\displaystyle DM4(P_i, P_j) = ||P_i – P_j||\r\n\\)<\/p>\n\n\n

                                                              \u6ce8\u610f\uff1a<\/p>\n\n\n

                                                              \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u95ee\u9898\u9009\u62e9\u5408\u9002\u7684\u5dee\u5f02\u5ea6\u8ba1\u7b97\u65b9\u6cd5\u3002<\/p>\n\n\n

                                                              \u5bf9\u4e8e\u9ad8\u65af\u5dee\u5f02\u5ea6\uff0c\u9700\u8981\u8bbe\u7f6e\u5bbd\u5ea6\u53c2\u6570 \u03c3\u3002<\/p>\n\n\n

                                                              \u5e0c\u671b\u8fd9\u4e9b\u6570\u5b66\u516c\u5f0f\u80fd\u591f\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u8fd9\u56db\u79cd\u5dee\u5f02\u5ea6\u8ba1\u7b97\u65b9\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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