{"id":38918,"date":"2019-02-18T00:00:33","date_gmt":"2019-02-17T16:00:33","guid":{"rendered":"https:\/\/case.ntu.edu.tw\/blog\/?p=38918"},"modified":"2022-01-04T08:23:56","modified_gmt":"2022-01-04T00:23:56","slug":"ai%e7%9a%84%e8%a1%a8%e7%8f%be%e5%a5%bd%e5%97%8e%ef%bc%9f%e5%8d%81%e7%a8%ae%e5%b8%b8%e8%a6%8b%e7%9a%84%e8%a9%95%e4%bc%b0%e6%8c%87%e6%a8%99","status":"publish","type":"post","link":"https:\/\/case.ntu.edu.tw\/blog\/?p=38918","title":{"rendered":"AI\u7684\u8868\u73fe\u597d\u55ce\uff1f\u5341\u7a2e\u5e38\u898b\u7684\u8a55\u4f30\u6307\u6a19"},"content":{"rendered":"
\n
\"AI\u7684\u8868\u73fe\u597d\u55ce\uff1f\u5341\u7a2e\u5e38\u898b\u7684\u8a55\u4f30\u6307\u6a19\"<\/div>\n<\/div>\n
\n
\n

\u64b0\u6587\uff0f\u9673\u80b2\u5a77<\/strong><\/p>\n

\u5e38\u898b\u8a55\u4f30\u6307\u6a19<\/strong><\/p>\n

\u751f\u6d3b\u4e2d\u6709\u8a31\u591a\u5c6c\u65bc\u300c\u4e8c\u5143\u5206\u985e\u300d\u7684\u554f\u984c\uff0c\u4f8b\u5982\uff1a\u61c9\u8a72\u6838\u51c6\u6216\u99c1\u56de\u8cb8\u6b3e\u7533\u8acb\uff1f\u4fe1\u7528\u5361\u767c\u5361\u8207\u5426\uff1f\u662f\u5426\u7f79\u60a3\u67d0\u4e00\u75be\u75c5\uff1f\u5de5\u5ee0\u7522\u54c1\u662f\u5426\u6709\u7455\u75b5\uff1f\u6db5\u84cb\u7bc4\u570d\u4e4b\u5ee3\uff0c\u8de8\u53ca\u5404\u884c\u5404\u696d\u3002AI\u4e8c\u5143\u5206\u985e\u5668\u7684\u6548\u80fd\uff0c\u4fbf\u53ef\u85c9\u7531\u5206\u985e\uff08\u9810\u6e2c\uff09\u7d50\u679c\u8207\u5be6\u969b\u60c5\u5f62\u7684\u5dee\u8ddd\u4f86\u8a55\u4f30\u3002\u6211\u5011\u5e38\u4ee5\u6df7\u6dc6\u77e9\u9663\uff08confusion matrix\uff09\u5217\u8209\u53ef\u80fd\u7684\u60c5\u5f62\uff1a<\/p>\n

\"\"<\/a><\/p>\n

\u8868\u4e00\u3001\u4e8c\u5143\u5206\u985e\u7684\u6df7\u6dc6\u77e9\u9663\u3002<\/p>\n<\/div>\n

\u4e0a\u8868\u4e2d\uff0c\u6a6b\u5217\u70ba\u5be6\u969b\u60c5\u5f62\uff0c\u76f4\u884c\u70ba\u9810\u6e2c\u7d50\u679c\u3002\u300c\u967d\u6027\u300d\uff08positive\uff09\u4ee3\u8868\u6240\u95dc\u6ce8\u7684\u985e\u5225\uff0c\u5982\u300c\u6838\u51c6\u300d\u8cb8\u6b3e\u3001\u300c\u6709\u300d\u7f79\u60a3\u75be\u75c5\uff1b\u300c\u9670\u6027\u300d\uff08negative\uff09\u5247\u4ee3\u8868\u8207\u95dc\u6ce8\u985e\u5225\u76f8\u5c0d\u7684\u53e6\u4e00\u65b9\u3002TP\uff08true positive\uff0c\u771f\u967d\u6027\uff09\u8207TN\uff08true negative\uff0c\u771f\u9670\u6027\uff09\uff0c\u4ee3\u8868\u9810\u6e2c\u7d50\u679c\u8207\u5be6\u969b\u60c5\u5f62\u76f8\u7b26\u7684\u6848\u4f8b\uff1b\u76f8\u5c0d\u7684\uff0cFP\uff08false positive\uff0c\u507d\u967d\u6027\uff1b\u53c8\u7a31\u7b2c\u4e00\u578b\u8aa4\u5dee\uff0cType I Error\uff09\u8207FN\uff08false negative\uff0c\u507d\u9670\u6027\uff1b\u53c8\u7a31\u7b2c\u4e8c\u578b\u8aa4\u5dee\uff0cType II Error\uff09\uff0c\u5247\u662f\u9810\u6e2c\u7d50\u679c\u8207\u5be6\u969b\u60c5\u5f62\u4e0d\u7b26\u7684\u60c5\u6cc1\u3002\u7531\u4e0a\u8868\u4fbf\u53ef\u884d\u4f38\u51fa\u5e38\u7528\u7684\u5341\u5927\u8a55\u4f30\u6307\u6a19\uff1a<\/p>\n

    \n
  • \u6e96\u78ba\u7387\uff08Accuracy Rate\uff0cACR\uff09<\/strong><\/li>\n<\/ul>\n

    \u5206\u985e\u5668\u9810\u6e2c\u6b63\u78ba\u7684\u7b46\u6578\u4f54\u6240\u6709\u6a23\u672c\u7684\u6bd4\u4f8b\u3002\u9019\u662f\u6700\u5e38\u88ab\u9078\u7528\u7684\u6307\u6a19\uff0c\u5c24\u5176\u5728\u6c92\u6709\u7279\u5225\u7684\u95dc\u6ce8\u985e\u5225\uff0c\u53ea\u662f\u60f3\u76e1\u91cf\u63d0\u5347\u6a21\u578b\u9810\u6e2c\u80fd\u529b\u6642\u3002\u516c\u5f0f\u70ba\uff1a<\/p>\n

    A<\/span>C<\/span>R<\/span>=<\/span>T<\/span>P<\/span>+<\/span>T<\/span>N<\/span><\/span>T<\/span>P<\/span>+<\/span>F<\/span>P<\/span>+<\/span>F<\/span>N<\/span>+<\/span>T<\/span>N<\/span>(<\/span>N<\/span>\u7e3d<\/span><\/span><\/span>\u6a23<\/span><\/span><\/span>\u672c<\/span><\/span><\/span>\u500b<\/span><\/span><\/span>\u6578<\/span><\/span><\/span>)<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n
      \n
    • \u771f\u967d\u6027\u7387\uff08True Positive Rate\uff0cTPR\uff09&\u00a0<\/strong>\u771f\u9670\u6027\u7387 \uff08True Negative Rate\uff0cTNR\uff09<\/strong><\/li>\n<\/ul>\n

      \u524d\u8005\u8861\u91cf\u967d\u6027\u985e\u5225\u4e2d\u88ab\u6b63\u78ba\u9810\u6e2c\u70ba\u967d\u6027\u7684\u6bd4\u4f8b\uff0c\u53c8\u7a31\u53ec\u56de\u7387\uff08Recall\uff09\uff1b\u5f8c\u8005\u5247\u76f8\u53cd\uff0c\u8861\u91cf\u9670\u6027\u6a23\u672c\u7684\u9810\u6e2c\u6e96\u78ba\u7387\uff0c\u53c8\u7a31\u660e\u78ba\u5ea6\uff08Specificity\uff09\u3002\u82e5\u76f8\u8f03\u65bc\u6574\u9ad4\u6e96\u78ba\u7387\uff0c\u4f60\u7279\u5225\u91cd\u8996\u967d\u6027\u6a23\u672c\u7684\u9810\u6e2c\u597d\u58de\uff0c\u771f\u967d\u6027\u7387\u6703\u662f\u95dc\u9375\u3002\u4f8b\u5982\uff1a\u91ab\u751f\u6703\u5e0c\u671b\u76e1\u91cf\u5c07\u78ba\u5be6\u7f79\u75c5\u7684\u60a3\u8005\u7be9\u9078\u51fa\u4f86\uff08\u4ee5\u300c\u78ba\u5be6\u7f79\u60a3\u300d\u70ba\u967d\u6027\uff09\u3001\u9280\u884c\u5e0c\u671b\u80fd\u964d\u4f4e\u6838\u51c6\u8cb8\u6b3e\u4e88\u7121\u511f\u9084\u80fd\u529b\u8005\u7684\u53ef\u80fd\u6027\uff08\u4ee5\u300c\u7121\u511f\u9084\u80fd\u529b\u4e4b\u4eba\u300d\u70ba\u967d\u6027\uff09\u3002\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n

      T<\/span>P<\/span>R<\/span>=<\/span>T<\/span>P<\/span><\/span>T<\/span>P<\/span>+<\/span>F<\/span>N<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n
      T<\/span>N<\/span>R<\/span>=<\/span>T<\/span>N<\/span><\/span>F<\/span>P<\/span>+<\/span>T<\/span>N<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n
        \n
      • \u507d\u967d\u6027\u7387\uff08False Positive Rate\uff0cFPR\uff09& \u507d\u9670\u6027\u7387\uff08False Negative Rate\uff0cFNR\uff09<\/strong><\/li>\n<\/ul>\n

        \u8207\u524d\u8005\u76f8\u5c0d\uff0c\u6b64\u9805\u5728\u8a55\u4f30\u5404\u985e\u5225\u9810\u6e2c\u932f\u8aa4\u7684\u6bd4\u7387\uff0c\u8207\u771f\u967d\u6027\u7387\u8207\u771f\u9670\u6027\u7387\u6709\u4e92\u88dc\u95dc\u4fc2\u3002\u524d\u8005\u662f\u8a55\u4f30\u9670\u6027\u6a23\u672c\u4e2d\u88ab\u9810\u6e2c\u70ba\u967d\u6027\u7684\u6bd4\u7387\uff0c\u5f8c\u8005\u5247\u76f8\u53cd\u3002<\/p>\n

        F<\/span>P<\/span>R<\/span>=<\/span>F<\/span>P<\/span><\/span>F<\/span>P<\/span>+<\/span>T<\/span>N<\/span><\/span><\/span><\/span><\/span>=<\/span>1<\/span>\u2212<\/span>T<\/span>N<\/span>R<\/span><\/span><\/span><\/span><\/div>\n
        F<\/span>N<\/span>R<\/span>=<\/span>F<\/span>N<\/span><\/span>T<\/span>P<\/span>+<\/span>F<\/span>N<\/span><\/span><\/span><\/span><\/span>=<\/span>1<\/span>\u2212<\/span>T<\/span>P<\/span>R<\/span><\/span><\/span><\/span><\/div>\n
          \n
        • \u967d\u6027\u9810\u6e2c\u503c\uff08Positive Predictive Value\uff0cPPV\uff09& \u9670\u6027\u9810\u6e2c\u503c\uff08Negative Predictive Value\uff0cNPV\uff09<\/strong><\/li>\n<\/ul>\n

          \u6b64\u5169\u6307\u6a19\u4e0d\u662f\u4ee5\u5be6\u969b\u985e\u5225\u70ba\u5206\u6bcd\uff0c\u800c\u662f\u9810\u6e2c\u985e\u5225\uff0c\u4e5f\u5c31\u662f\u8868\u683c\u4e2d\u7684\u76f4\u884c\u70ba\u5206\u6bcd\u3002\u5176\u4e2dPPV\u53c8\u7a31\u70ba\u7cbe\u78ba\u5ea6\uff08Precision\uff09\uff0c\u7528\u610f\u5728\u8861\u91cf\u9810\u6e2c\u967d\u6027\u7684\u6a23\u672c\u4e2d\uff0c\u6709\u591a\u5c11\u6bd4\u4f8b\u5be6\u969b\u4ea6\u70ba\u967d\u6027\uff1b\u5f8c\u8005\u610f\u7fa9\u76f8\u540c\uff0c\u4f46\u70ba\u9670\u6027\u3002<\/p>\n

          P<\/span>P<\/span>V<\/span>=<\/span>T<\/span>P<\/span><\/span>T<\/span>P<\/span>+<\/span>F<\/span>P<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n
          N<\/span>P<\/span>V<\/span>=<\/span>T<\/span>N<\/span><\/span>T<\/span>N<\/span>+<\/span>F<\/span>N<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n
            \n
          • F1<\/strong><\/li>\n<\/ul>\n

            \u76ee\u7684\u5728\u8861\u91cf\u771f\u967d\u6027\u7387\uff08TPR\uff09\u8207\u967d\u6027\u9810\u6e2c\u503c\uff08PPV\uff09\u9593\u7684\u5e73\u8861\u3002<\/p>\n

            F<\/span>1<\/span>=<\/span>2<\/span>\u22c5<\/span>(<\/span>P<\/span>P<\/span>V<\/span>\u22c5<\/span>T<\/span>P<\/span>R<\/span>)<\/span><\/span>P<\/span>P<\/span>V<\/span>+<\/span>T<\/span>P<\/span>R<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/div>\n

            \u6b64\u6307\u6a19\u53ea\u6709\u5728TPR\u8207PPV\u76f8\u7576\uff08\u5e73\u8861\uff09\u7684\u60c5\u6cc1\u4e0b\u624d\u6703\u9ad8\uff1b\u82e5\u5176\u4e2d\u4e00\u500b\u8868\u73fe\u597d\uff0c\u53e6\u4e00\u500b\u8868\u73fe\u6975\u5dee\uff0cF1\u503c\u5247\u6703\u5c0f\u5f88\u591a\u3002\u4f8b\u5982\uff1a\u7576\u5be6\u969b\u967d\u6027\u8207\u9670\u6027\u6bd4\u70ba10\uff1a90\u6642\uff0c\u82e5\u50c5\u67091\u6a23\u672c\u88ab\u9810\u6e2c\u70ba\u967d\u6027\u4e14\u9810\u6e2c\u6b63\u78ba\uff0c\u9918\u4e0b99\u500b\u6a23\u672c\u7686\u9810\u6e2c\u70ba\u9670\u6027\uff08\u4f46\u5176\u4e2d\u50c590\u4f8b\u5be6\u969b\u70ba\u9670\u6027\uff09\u3002\u6b64\u6642PPV=100%\uff0c TPR\uff1d10%\uff0cF1\u50c50.18\uff1b\u76f8\u8f03\u65bcPPV=50%\u3001TPR=50%\u7684\u60c5\u6cc1\uff08F1=0.5\uff09\uff0cF1\u503c\u5c0f\u5f88\u591a\u3002<\/p>\n

              \n
            • \u5e7e\u4f55\u5e73\u5747\u8a55\u4f30\u6307\u6a19 \uff08Geometric Mean\uff0cGM\uff09<\/strong><\/li>\n<\/ul>\n

              \u76ee\u7684\u5728\u8861\u91cf\u771f\u967d\u6027\u7387\uff08TPR\uff09\u8207\u771f\u9670\u6027\u7387\uff08TNR\uff09\u5169\u6307\u6a19\u9593\u7684\u5e73\u8861\u3002<\/p>\n

              G<\/span>M<\/span>=<\/span>T<\/span>P<\/span>R<\/span>\u22c5<\/span>T<\/span>N<\/span>R<\/span><\/span>\u2212\u2212\u2212\u2212\u2212\u2212\u2212\u2212\u2212\u2212\u221a<\/span><\/span><\/span><\/span><\/div>\n

              \u7576TPR\u8207TNR\u7684\u503c\u76f8\u7576\u4e14\u9ad8\uff0cGM\u503c\u6703\u9054\u5230\u9ad8\u5cf0\uff1b\u53cd\u4e4b\uff0c\u82e5\u5176\u4e2d\u4e00\u503c\u9ad8\u3001\u53e6\u4e00\u503c\u4f4e\uff0c\u5247GM\u504f\u4f4e\u3002<\/p>\n

                \n
              • \u63a5\u6536\u8005\u7279\u5fb5\u64cd\u4f5c\u66f2\u7dda\uff08Receiver Operating characteristic Curve\uff0cROC\uff09& \u66f2\u7dda\u4e0b\u65b9\u9762\u7a4d\uff08Area Under the Curve\uff0cAUC\uff09<\/strong><\/li>\n<\/ul>\n

                \u901a\u5e38\uff0c\u5206\u985e\u5668\u6703\u7d66\u6bcf\u500b\u6a23\u672c\u4e00\u500b\u5206\u6578\uff0c\u5206\u6578\u9ad8\u4ee3\u8868\u5c6c\u65bc\u967d\u6027\u7684\u6a5f\u7387\u9ad8\uff0c\u53cd\u4e4b\u5247\u76f8\u53cd\u3002\u6211\u5011\u53ef\u4ee5\u85c9\u7531\u6c7a\u5b9a\u4e0d\u540c\u7684\u5207\u5272\u9ede\uff08\u95be\u503c\uff09\u4f86\u5283\u5206\u967d\u6027\u8207\u9670\u6027\uff0c\u4e0d\u540c\u95be\u503c\u6703\u6709\u4e0d\u540c\u7684\u8868\u73fe\uff1b\u8207\u524d\u8ff0\u6240\u6709\u6307\u6a19\u4e0d\u540c\uff0c\u6b64\u6307\u6a19\u4e0d\u9650\u65bc\u55ae\u4e00\u95be\u503c\u7684\u8868\u73fe\uff0c\u800c\u662f\u63cf\u7e6a\u5728\u4e0d\u540c\u95be\u503c\u4e0b\uff0c\u507d\u967d\u6027\u7387\uff08FPR\uff09\u8207\u771f\u967d\u6027\u7387\uff08TPR\uff09\u7684\u95dc\u4fc2\u3002<\/p>\n

                \"\"<\/p>\n

                \u5716\u4e8c\u3001ROC\u66f2\u7dda\u8207AUC\u793a\u610f\u5716\u3002\u6a6b\u8ef8\u70baFPR\uff0c\u7e31\u8ef8\u70baTPR\u3002<\/p>\n<\/div>\n

                \u5716\u4e8c\u4e2d\uff0c\u5de6\u4e0b\u5340\u57df\u4ee3\u8868\u96a8\u8457\u95be\u503c\u63d0\u9ad8\uff0c\u5e7e\u4e4e\u6c92\u6709\u6a23\u672c\u88ab\u5206\u985e\u70ba\u967d\u6027\uff0cFPR\u8207TPR\u7686\u4f4e\uff1b\u53cd\u4e4b\uff0c\u53f3\u4e0a\u5340\u57df\uff0c\u96a8\u8457\u95be\u503c\u964d\u4f4e\uff0c\u5e7e\u4e4e\u6240\u6709\u6a23\u672c\u90fd\u88ab\u6b78\u985e\u70ba\u967d\u6027\uff0c\u5169\u6307\u6a19\u503c\u7686\u9ad8\u3002\u901a\u5e38\u6211\u5011\u6703\u7528AUC\u2013ROC\u5e95\u4e0b\u7684\u5340\u584a\u9762\u7a4d\u4f86\u8861\u91cf\u5206\u985e\u5668\u7684\u597d\u58de\uff1a\u8d8a\u9ad8\u4ee3\u8868\u5206\u985e\u5668\u6548\u679c\u8d8a\u597d\u3002AUC\u672c\u8eab\u4e5f\u5e36\u6709\u610f\u7fa9\uff0c\u4ee3\u8868\uff1a\u96a8\u6a5f\u62bd\u53d6\u4e00\u500b\u967d\u6027\u6a23\u672c\uff21\u8ddf\u9670\u6027\u6a23\u672c\uff22\u5f8c\uff0c\u5206\u985e\u5668\u7d66\u524d\u8005\uff08\uff21\uff09\u7684\u5206\u6578\u6703\u5927\u65bc\u5f8c\u8005\uff08B\uff09\u5206\u6578\u7684\u6a5f\u7387\uff0c\u6240\u4ee5\u81ea\u7136\u662f\u8d8a\u9ad8\u8d8a\u597d\u3002<\/p>\n

                \u7576\u8cc7\u6599\u5206\u5e03\u4e0d\u5747<\/strong><\/p>\n

                \u53ea\u662f\uff0c\u7576\u8cc7\u6599\u4e2d\u967d\u6027\u8207\u9670\u6027\u6848\u4f8b\u7684\u6bd4\u4f8b\u4e0d\u5747\uff08\u4e00\u822c\u967d\u6027\u8f03\u5c11\uff0c\u56e0\u70ba\u6703\u7279\u5225\u95dc\u6ce8\u7684\u901a\u5e38\u662f\u5982\u7f79\u75c5\u3001\u7455\u75b5\u3001\u9055\u7d04\u7b49\u5c11\u6578\u60c5\u6cc1\uff09\uff0c\u800c\u5206\u985e\u6f14\u7b97\u6cd5\u4ea6\u672a\u96a8\u4e4b\u8abf\u6574\uff0c\u5206\u985e\u5668\u5c07\u96e3\u4ee5\u6293\u4f4f\u967d\u6027\u8207\u9670\u6027\u4e4b\u9593\u7684\u7279\u5fb5\u5dee\u7570\u3001\u8fa8\u8a8d\u5c6c\u65bc\u5c11\u6578\u985e\u5225\u7684\u6a23\u672c\u3002\u6b64\u5916\uff0c\u8a55\u4f30\u6307\u6a19\u7684\u9078\u64c7\u4e5f\u81f3\u95dc\u91cd\u8981\uff0c\u5426\u5247\u53ef\u80fd\u9ad8\uff08\u4f4e\uff09\u4f30\u5206\u985e\u5668\u7684\u5be6\u969b\u6548\u80fd\uff0c\u8aa4\u5c0e\u5927\u773e\u3002\u4f8b\u5982\uff1a\u757695%\u7684\u8cc7\u6599\u70ba\u9670\u6027\u6642\uff0c\u4e00\u5f8b\u731c\u6e2c\u6240\u6709\u6a23\u672c\u7686\u70ba\u9670\u6027\uff0c\u5206\u985e\u5668\u7684\u6e96\u78ba\u7387\u53ef\u905495%\uff1b\u7136\u800c\uff0c\u82e5\u4f60\u95dc\u6ce8\u7684\u985e\u5225\u662f\u967d\u6027\uff0c\u6b64\u5206\u985e\u5668\u5176\u5be6\u6beb\u7121\u6548\u7528\u3002\u5982\u4f55\u6539\u5584\u5462\uff1f\u6709\u4ee5\u4e0b\u4e09\u500b\u65b9\u5411\u3002<\/p>\n

                  \n
                1. \u9078\u64c7\u53d7\u8cc7\u6599\u5206\u5e03\u5f71\u97ff\u8f03\u5c0f\u7684\u8a55\u4f30\u6307\u6a19<\/li>\n<\/ol>\n

                  \u6709\u4e9b\u8a55\u4f30\u6307\u6a19\u4e0d\u53d7\u8cc7\u6599\u985e\u5225\u4e0d\u5e73\u8861\u7684\u5f71\u97ff\uff0c\u4f8b\u5982ROC-AUC\uff0c\u7531\u65bc\u5b83\u8861\u91cf\u7684\u662f\u00a0FPR = P ( Classified = \u967d\u6027\uff5cTrue class = \u9670\u6027 )\u00a0<\/strong>\u4ee5\u53ca\u00a0TPR = P ( Classified = \u967d\u6027\uff5cTrue class = \u967d\u6027 )\u00a0<\/strong>\u7684\u95dc\u4fc2\uff0c\u662f\u5df2\u77e5\u771f\u5be6\u60c5\u6cc1\u4e0b\u7684\u689d\u4ef6\u6a5f\u7387\uff0c\u800c\u4e0d\u662f\u00a0P(\u967d\u6027)\u00a0<\/strong>\u53ca\u00a0P(\u9670\u6027)<\/strong>\u00a0\uff0c\u6240\u4ee5\u5728\u8cc7\u6599\u985e\u5225\u5206\u5e03\u6539\u8b8a\u6642\uff0cROC-AUC\u4e26\u4e0d\u6703\u6539\u8b8a\u3002\u53e6\u5916\uff0c\u56e0\u70baF1\u3001GM\u662f\u5728\u6700\u5927\u5316\u5169\u500b\u4e0d\u540c\u6307\u6a19\u7684\u5e73\u8861\uff0c\u96d6\u4ecd\u6703\u53d7\u5230\u8cc7\u6599\u5206\u5e03\u5f71\u97ff\uff0c\u4e0d\u904e\u7a0b\u5ea6\u76f8\u5c0d\u8f03\u5c0f\u3002<\/p>\n

                    \n
                  1. \u8abf\u6574\u8cc7\u6599\u6bd4\u4f8b<\/li>\n<\/ol>\n

                    \u82e5\u8981\u8b93\u8cc7\u6599\u985e\u5225\u5206\u5e03\u5f9e\u4e0d\u5e73\u8861\u5230\u5e73\u8861\uff0c\u4e5f\u53ef\u4ee5\u76f4\u63a5\u900f\u904e\u96a8\u6a5f\u62bd\u6a23\u8abf\u6574\u3002\u6709\u5169\u7a2e\u62bd\u6a23\u65b9\u5f0f\uff0c\u4e00\u7a2e\u91dd\u5c0d\u5c11\u6578\u985e\u5225\u505a\u904e\u53d6\u6a23\uff08oversampling\uff09\uff0c\u589e\u52a0\u8a72\u985e\u5225\u500b\u6578\uff1b\u4e00\u7a2e\u5247\u662f\u5c0d\u591a\u6578\u985e\u5225\u505a\u964d\u53d6\u6a23\uff08undersampling\uff09\uff0c\u76ee\u7684\u90fd\u662f\u8981\u8b93\u8cc7\u6599\u967d\u6027\u8207\u9670\u6027\u6a23\u672c\u6bd4\u4f8b\u70ba1\uff1a1\u3002<\/p>\n

                      \n
                    1. \u8abf\u6574\u5206\u985e\u898f\u5247<\/li>\n<\/ol>\n

                      \u53ef\u4ee5\u900f\u904e\u8abf\u6574\u5206\u985e\u95be\u503c\u7684\u65b9\u5f0f\uff0c\u8b93\u967d\u6027\u6a23\u672c\u8f03\u5bb9\u6613\u88ab\u5075\u6e2c\u51fa\u4f86\u3002\u4e00\u822c\u7684\u6c7a\u7b56\u95be\u503c\u662f0.5\uff1b\u4f46\u662f\uff0c\u5728\u4e0d\u5e73\u8861\u8cc7\u6599\u60c5\u6cc1\u4e0b\uff0c\u95be\u503c\u53ef\u4ee5\u66f4\u6539\u70ba\u300c\u53ea\u8981\u967d\u6027\u6a23\u672c\u7684\u5206\u6578\u9ad8\u65bc\u5b83\u5728\u8cc7\u6599\u4e2d\u4f54\u7684\u6bd4\u4f8b\uff08\u967d\u6027\u70ba\u5c11\u6578\u985e\u5225\u7684\u60c5\u6cc1\u4e2d\uff0c\u95be\u503c\u6703\u5c0f\u65bc0.5\uff09\uff0c\u5c31\u5206\u70ba\u967d\u6027\u300d\u3002\u63db\u8a00\u4e4b\uff0c\u5047\u8a2d\u9670\u6027\u8207\u967d\u6027\u7684\u6bd4\u4f8b\u70baa\uff1ab\uff0c\u82e5\u200bP<\/span>(<\/span>+<\/span>|<\/span><\/span><\/span>x<\/span>)<\/span>><\/span>b<\/span>a<\/span>+<\/span>b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u200b\u5373\u5224\u5b9a\u70ba\u967d\u6027\uff0c\u5426\u5247\u70ba\u9670\u6027\u3002\u7576\u7136\uff0c\u4e5f\u53ef\u4ee5\u81ea\u884c\u8a2d\u5b9a\u6210\u672c\u4fc2\u6578\uff0c\u5e36\u5230\u5206\u985e\u898f\u5247\u4e2d\u3002<\/p>\n

                      \u6b63\u78ba\u9078\u64c7\u8a55\u4f30\u6307\u6a19<\/strong><\/p>\n

                      \u7d9c\u5408\u4e0a\u8ff0\u53ef\u4ee5\u5f97\u77e5\uff0c\u8981\u6b63\u78ba\u8a55\u4f30\u5206\u985e\u5668\u7684\u6548\u80fd\uff0c\u4e0d\u80fd\u53ea\u5f9e\u55ae\u65b9\u9762\u5207\u5165\uff0c\u9084\u5fc5\u9808\u540c\u6642\u8003\u91cf\u5206\u985e\u76ee\u7684\u3001\u5c0d\u8cc7\u6599\u7684\u4e86\u89e3\u4ee5\u53ca\u8a55\u4f30\u6307\u6a19\u7684\u7279\u6027\u3002\u8209\u4f8b\u4f86\u8aaa\uff0c\u82e5\u8cc7\u6599\u5206\u5e03\u4e0d\u5747\uff0c\u5247\u61c9\u8a66\u5716\u4ee5\u4e0a\u8ff0\u65b9\u6cd5\u6539\u9032\u5206\u985e\u904e\u7a0b\uff1b\u6b64\u5916\uff0c\u82e5\u4f60\u7684\u76ee\u7684\u662f\u76e1\u91cf\u8b93\u967d\u6027\u6a23\u672c\u88ab\u6b63\u78ba\u5730\u8fa8\u8b58\u51fa\u4f86\uff0c\u4fbf\u61c9\u8a72\u9078\u64c7\u6700\u80fd\u7a81\u986f\u967d\u6027\u6a23\u672c\u5206\u985e\u6548\u679c\u7684\u771f\u967d\u6027\u7387\u3001\u7cbe\u78ba\u5ea6\u3001\u4ee5\u53ca\u8861\u91cf\u5169\u8005\u5e73\u8861\u7684F1\u7b49\u6307\u6a19\uff1b\u6700\u5f8c\uff0c\u4f60\u4e5f\u5fc5\u9808\u6e05\u695a\u54ea\u4e9b\u6307\u6a19\u4e0d\u6703\u53d7\u8cc7\u6599\u5206\u5e03\u4e0d\u5747\u5f71\u97ff\uff0c\u5c07\u5176\u5217\u5165\u5019\u9078\u6307\u6a19\u3002<\/p>\n

                      \u76f8\u53cd\u7684\uff0c\u6211\u5011\u4e5f\u4e0d\u61c9\u55ae\u6191\u55ae\u4e00\u6307\u6a19\u7684\u6578\u503c\u5984\u4e0b\u7d50\u8ad6\u3001\u8aa4\u5224\u7cfb\u7d71\u512a\u52a3\uff0c\u800c\u61c9\u53c3\u914c\u524d\u8ff0\u4e09\u9805\u689d\u4ef6\u3002\u6b64\u7bc7\u50c5\u7c21\u55ae\u95e1\u8ff0\u8a55\u4f30\u6307\u6a19\u9593\u7684\u76f8\u95dc\u6027\u4ee5\u53ca\u53d7\u8cc7\u6599\u5206\u5e03\u5f71\u97ff\u7684\u7a0b\u5ea6\uff0c\u5728\u9078\u64c7\u8a55\u4f30\u6307\u6a19\u524d\uff0c\u82e5\u80fd\u95b1\u8b80\u76f8\u95dc\u8ad6\u6587\u6216\u7db2\u7ad9\uff0c\u5c0d\u5404\u6307\u6a19\u7684\u7528\u610f\u8207\u9650\u5236\u6709\u66f4\u591a\u4e86\u89e3\uff0c\u624d\u80fd\u907f\u514d\u8aa4\u5224\u5206\u985e\u5668\u6548\u80fd\u3002<\/p>\n

                       <\/p>\n

                      \u53c3\u8003\u8cc7\u6599<\/strong><\/p>\n

                        \n
                      1. N. Seliya, T. M. Khoshgoftaar, and J. V. Hulse, \u201cA Study on the Relationships of Classifier Performance Metrics,\u201d in\u00a02009 21st IEEE International Conference on Tools with Artificial Intelligence<\/em>, 2009, pp. 59-66.<\/li>\n
                      2. J. B. Brown, \u201cClassifiers and their Metrics Quantified,\u201d\u00a0Molecular Informatics,\u00a0<\/em>vol. 37, no. 1-2, p. 1700127, 2018.<\/li>\n<\/ol>\n

                        (\u672c\u6587\u7531\u6559\u80b2\u90e8\u88dc\u52a9\uff62AI\u5831\u5831\u2500AI\u79d1\u666e\u63a8\u5ee3\u8a08\u756b\u300d\u57f7\u884c\u5718\u968a\u7de8\u8b6f)<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

                        \u6709\u8a31\u591a\u65b9\u5f0f\u53ef\u4ee5\u8a55\u4f30\u4e00AI\u662f\u5426\u6709\u6548\uff0c\u4ee5\u5206\u985e\u5668\u70ba\u4f8b\uff0c\u5e38\u7528\u7684\u6307\u6a19\u4fbf\u6709\u6e96\u78ba\u7387\u3001\u7cbe\u78ba\u5ea6\u3001\u53ec\u56de\u7387\u7b49\u3002\u4f46\u662f\uff0c\u67d0\u9805\u8a55\u4f30\u6307\u6a19\u6578\u503c\u9ad8\uff0c\u5c31\u4ee3\u8868\u5206\u985e\u5668\u8868\u73fe\u597d\u55ce\uff1f\u5982\u4f55\u6b63\u78ba\u9078\u64c7\u8a55\u4f30\u6307\u6a19\uff0c\u624d\u80fd\u771f\u5be6\u53cd\u6620AI\u6548\u80fd\u5462\uff1f\u4ee5\u4e0b\u5c07\u4ee5\u5e38\u898b\u7684\u4e8c\u5143\u5206\u985e\u5668\u70ba\u4f8b\uff0c\u8a0e\u8ad6\u5982\u4f55\u85c9\u7531\u8cc7\u6599\u7279\u6027\u3001\u8a55\u4f30\u76ee\u7684\u53ca\u5c0d\u8a55\u4f30\u6307\u6a19\u7684\u4e86\u89e3\uff0c\u6b63\u78ba\u9078\u64c7\u5408\u9069\u7684\u8a55\u4f30\u6307\u6a19\u3002<\/p>\n","protected":false},"author":21,"featured_media":38919,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3772,3293],"tags":[6068,6069,6070,6071,6072,6073,6074,6075,6076,6077,6078,6079,6080,6081,6082],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/case.ntu.edu.tw\/blog\/wp-content\/uploads\/2022\/01\/business-2089534_1920.jpg","_links":{"self":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/38918"}],"collection":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/users\/21"}],"replies":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=38918"}],"version-history":[{"count":1,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/38918\/revisions"}],"predecessor-version":[{"id":38920,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/38918\/revisions\/38920"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/media\/38919"}],"wp:attachment":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=38918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=38918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=38918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}