{"id":58639,"date":"2023-10-26T13:52:23","date_gmt":"2023-10-26T05:52:23","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=58639"},"modified":"2023-10-26T13:52:24","modified_gmt":"2023-10-26T05:52:24","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e6%b7%b7%e6%b7%86%e7%9f%a9%e9%98%b5","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/58639.html","title":{"rendered":"\u5982\u4f55\u4f7f\u7528\u6df7\u6dc6\u77e9\u9635"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote\">\n<p>\u6df7\u6dc6\u77e9\u9635\u662f\u8bc4\u4f30\u5206\u7c7b\u6a21\u578b\u6027\u80fd\u7684\u91cd\u8981\u5de5\u5177\u3002\u6df7\u6dc6\u77e9\u9635\u662f\u7528\u4e8e\u8bc4\u4f30\u5206\u7c7b\u6a21\u578b\u6027\u80fd\u7684\u5de5\u5177\uff0c\u5c24\u5176\u5728\u4e8c\u5206\u7c7b\u95ee\u9898\u4e2d\u5e7f\u6cdb\u4f7f\u7528\u3002\u5b83\u5c06\u6a21\u578b\u7684\u9884\u6d4b\u7ed3\u679c\u4e0e\u5b9e\u9645\u6807\u7b7e\u8fdb\u884c\u6bd4\u8f83\uff0c\u4ee5\u4fbf\u4e86\u89e3\u6a21\u578b\u7684\u6027\u80fd\u8868\u73b0\u3002\u6df7\u6dc6\u77e9\u9635\u5305\u62ec\u56db\u4e2a\u91cd\u8981\u7684\u6307\u6807\uff1a\u771f\u6b63\u4f8b\uff08True Positives\uff09\u3001\u5047\u6b63\u4f8b\uff08False Positives\uff09\u3001\u771f\u8d1f\u4f8b\uff08True Negatives\uff09\u548c\u5047\u8d1f\u4f8b\uff08False Negatives\uff09\u3002<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u4ec0\u4e48\u662f\u6df7\u6dc6\u77e9\u9635<\/h2>\n\n\n\n<p>\u6df7\u6dc6\u77e9\u9635\u662f\u7528\u4e8e\u8bc4\u4f30\u5206\u7c7b\u6a21\u578b\u6027\u80fd\u7684\u5de5\u5177\uff0c\u5c24\u5176\u5728\u4e8c\u5206\u7c7b\u95ee\u9898\u4e2d\u5e7f\u6cdb\u4f7f\u7528\u3002\u5b83\u5c06\u6a21\u578b\u7684\u9884\u6d4b\u7ed3\u679c\u4e0e\u5b9e\u9645\u6807\u7b7e\u8fdb\u884c\u6bd4\u8f83\uff0c\u4ee5\u4fbf\u4e86\u89e3\u6a21\u578b\u7684\u6027\u80fd\u8868\u73b0\u3002\u6df7\u6dc6\u77e9\u9635\u5305\u62ec\u56db\u4e2a\u91cd\u8981\u7684\u6307\u6807\uff1a\u771f\u6b63\u4f8b\uff08True Positives\uff09\u3001\u5047\u6b63\u4f8b\uff08False Positives\uff09\u3001\u771f\u8d1f\u4f8b\uff08True Negatives\uff09\u548c\u5047\u8d1f\u4f8b\uff08False Negatives\uff09\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u5982\u4f55\u6784\u5efa\u6df7\u6dc6\u77e9\u9635<\/h2>\n\n\n\n<p>\u6784\u5efa\u6df7\u6dc6\u77e9\u9635\u9700\u8981\u5c06\u6a21\u578b\u7684\u9884\u6d4b\u7ed3\u679c\u4e0e\u5b9e\u9645\u6807\u7b7e\u8fdb\u884c\u6bd4\u8f83\uff0c\u5e76\u5c06\u7ed3\u679c\u586b\u5165\u77e9\u9635\u7684\u4e0d\u540c\u90e8\u5206\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u771f\u6b63\u4f8b\u662f\u6a21\u578b\u6b63\u786e\u5730\u9884\u6d4b\u4e86\u6b63\u7c7b\u522b\u7684\u6837\u672c\uff0c\u771f\u8d1f\u4f8b\u662f\u6a21\u578b\u6b63\u786e\u5730\u9884\u6d4b\u4e86\u8d1f\u7c7b\u522b\u7684\u6837\u672c\uff0c\u5047\u6b63\u4f8b\u662f\u6a21\u578b\u9519\u8bef\u5730\u5c06\u8d1f\u7c7b\u522b\u6837\u672c\u9884\u6d4b\u4e3a\u6b63\u7c7b\u522b\uff0c\u5047\u8d1f\u4f8b\u662f\u6a21\u578b\u9519\u8bef\u5730\u5c06\u6b63\u7c7b\u522b\u6837\u672c\u9884\u6d4b\u4e3a\u8d1f\u7c7b\u522b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u5982\u4f55\u89e3\u91ca\u6df7\u6dc6\u77e9\u9635<\/h2>\n\n\n\n<p>\u6df7\u6dc6\u77e9\u9635\u7684\u6bcf\u4e2a\u6307\u6807\u90fd\u6709\u5176\u72ec\u7279\u7684\u542b\u4e49\u3002\u771f\u6b63\u4f8b\u548c\u771f\u8d1f\u4f8b\u8868\u793a\u6a21\u578b\u7684\u6b63\u786e\u9884\u6d4b\uff0c\u800c\u5047\u6b63\u4f8b\u548c\u5047\u8d1f\u4f8b\u8868\u793a\u6a21\u578b\u7684\u9519\u8bef\u9884\u6d4b\u3002\u901a\u8fc7\u6df7\u6dc6\u77e9\u9635\uff0c\u53ef\u4ee5\u8ba1\u7b97\u51fa\u51c6\u786e\u5ea6\uff08Accuracy\uff09\u3001\u7cbe\u786e\u5ea6\uff08Precision\uff09\u3001\u53ec\u56de\u7387\uff08Recall\uff09\u548cF1\u5206\u6570\u7b49\u6027\u80fd\u6307\u6807\uff0c\u8fd9\u4e9b\u6307\u6807\u53ef\u4ee5\u5e2e\u52a9\u8bc4\u4f30\u6a21\u578b\u7684\u6027\u80fd\u8868\u73b0\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u5982\u4f55\u4f7f\u7528\u6df7\u6dc6\u77e9\u9635\u8bc4\u4f30\u6a21\u578b\u6027\u80fd<\/h2>\n\n\n\n<p>\u6df7\u6dc6\u77e9\u9635\u662f\u8bc4\u4f30\u5206\u7c7b\u6a21\u578b\u6027\u80fd\u7684\u5173\u952e\u5de5\u5177\u4e4b\u4e00\u3002\u901a\u8fc7\u8ba1\u7b97\u51c6\u786e\u5ea6\uff0c\u60a8\u53ef\u4ee5\u4e86\u89e3\u6a21\u578b\u7684\u6574\u4f53\u6027\u80fd\u3002\u800c\u901a\u8fc7\u7cbe\u786e\u5ea6\u548c\u53ec\u56de\u7387\uff0c\u53ef\u4ee5\u66f4\u8be6\u7ec6\u5730\u4e86\u89e3\u6a21\u578b\u5728\u6b63\u7c7b\u522b\u548c\u8d1f\u7c7b\u522b\u4e0a\u7684\u6027\u80fd\u8868\u73b0\u3002F1\u5206\u6570\u7efc\u5408\u8003\u8651\u4e86\u7cbe\u786e\u5ea6\u548c\u53ec\u56de\u7387\uff0c\u5bf9\u4e0d\u5e73\u8861\u6570\u636e\u96c6\u7279\u522b\u6709\u7528\u3002<\/p>\n\n\n\n<p>\u6df7\u6dc6\u77e9\u9635\u5728\u673a\u5668\u5b66\u4e60\u9879\u76ee\u4e2d\u7684\u5e94\u7528 \u6df7\u6dc6\u77e9\u9635\u4e0d\u4ec5\u53ef\u4ee5\u7528\u4e8e\u6a21\u578b\u8bc4\u4f30\uff0c\u8fd8\u53ef\u4ee5\u5e2e\u52a9\u60a8\u9009\u62e9\u5408\u9002\u7684\u9608\u503c\u3001\u4f18\u5316\u6a21\u578b\u548c\u6539\u8fdb\u7279\u5f81\u5de5\u7a0b\u3002\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u6df7\u6dc6\u77e9\u9635\u901a\u5e38\u4e0e\u4ea4\u53c9\u9a8c\u8bc1\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u786e\u4fdd\u6a21\u578b\u7684\u9c81\u68d2\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"484\" height=\"300\" src=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/10\/\u4f60\u7684\u6bb5\u843d\u6587\u5b57-11-4.jpg?x-oss-process=image\/auto-orient,1\/format,webp\" alt=\"\" class=\"wp-image-58641\" \/><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><strong>\u5e38\u89c1\u95ee\u7b54<\/strong><\/h2>\n\n\n\n<ol>\n<li><strong>\u5982\u4f55\u8ba1\u7b97\u51c6\u786e\u5ea6\uff1f<\/strong>\n<ul>\n<li>\u51c6\u786e\u5ea6\u662f\u6307\u6a21\u578b\u6b63\u786e\u9884\u6d4b\u7684\u6837\u672c\u6570\u5360\u603b\u6837\u672c\u6570\u7684\u6bd4\u4f8b\u3002\u5b83\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\uff1a\u51c6\u786e\u5ea6 = (\u771f\u6b63\u4f8b + \u771f\u8d1f\u4f8b) \/ (\u603b\u6837\u672c\u6570)\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u4ec0\u4e48\u662fF1\u5206\u6570\uff1f<\/strong>\n<ul>\n<li>F1\u5206\u6570\u662f\u7cbe\u786e\u5ea6\u548c\u53ec\u56de\u7387\u7684\u8c03\u548c\u5e73\u5747\u503c\uff0c\u7528\u4e8e\u7efc\u5408\u8003\u8651\u6a21\u578b\u5728\u6b63\u7c7b\u522b\u548c\u8d1f\u7c7b\u522b\u4e0a\u7684\u6027\u80fd\u3002\u5b83\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\uff1aF1\u5206\u6570 = 2 * (\u7cbe\u786e\u5ea6 * \u53ec\u56de\u7387) \/ (\u7cbe\u786e\u5ea6 + \u53ec\u56de\u7387)\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5982\u4f55\u9009\u62e9\u9002\u5f53\u7684\u9608\u503c\uff1f<\/strong>\n<ul>\n<li>\u9608\u503c\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u4efb\u52a1\u7684\u8981\u6c42\u3002\u8f83\u9ad8\u7684\u9608\u503c\u4f1a\u589e\u52a0\u7cbe\u786e\u5ea6\u4f46\u964d\u4f4e\u53ec\u56de\u7387\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002\u9009\u62e9\u9002\u5f53\u7684\u9608\u503c\u9700\u8981\u6839\u636e\u4efb\u52a1\u7684\u4f18\u5148\u7ea7\u6765\u5e73\u8861\u7cbe\u786e\u5ea6\u548c\u53ec\u56de\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"\u6df7\u6dc6\u77e9\u9635\u662f\u8bc4\u4f30\u5206\u7c7b\u6a21\u578b\u6027\u80fd\u7684\u91cd\u8981\u5de5\u5177\u3002\u6df7\u6dc6\u77e9\u9635\u662f\u7528\u4e8e\u8bc4\u4f30\u5206\u7c7b\u6a21\u578b\u6027\u80fd\u7684\u5de5\u5177\uff0c\u5c24\u5176\u5728\u4e8c\u5206\u7c7b\u95ee\u9898\u4e2d\u5e7f\u6cdb\u4f7f\u7528\u3002\u5b83\u5c06\u6a21 [&hellip;]","protected":false},"author":6,"featured_media":58640,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/58639"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=58639"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/58639\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/58640"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=58639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=58639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=58639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}