{"id":399,"date":"2026-07-13T15:04:04","date_gmt":"2026-07-13T07:04:04","guid":{"rendered":"https:\/\/xuzbo.top\/?p=399"},"modified":"2026-07-13T15:21:27","modified_gmt":"2026-07-13T07:21:27","slug":"roc-auc","status":"publish","type":"post","link":"https:\/\/xuzbo.top\/index.php\/2026\/07\/13\/roc-auc\/","title":{"rendered":"ROC\/AUC\/GAUC\/AUUC"},"content":{"rendered":"<h2 class=\"simpletoc-title\">Table of Contents<\/h2>\n<ul class=\"simpletoc-list\">\n<li><a href=\"#%25e6%25b7%25b7%25e6%25b7%2586%25e7%259f%25a9%25e9%2598%25b5%25e5%2588%2586%25e7%25b1%25bb%25e6%258c%2587%25e6%25a0%2587%25e4%25b8%258e%25e9%2598%2588%25e5%2580%25bc\">\u6df7\u6dc6\u77e9\u9635\u3001\u5206\u7c7b\u6307\u6807\u4e0e\u9608\u503c<\/a>\n\n<\/li>\n<li><a href=\"#roc%25e6%259b%25b2%25e7%25ba%25bf\">ROC\u66f2\u7ebf<\/a>\n\n<\/li>\n<li><a href=\"#aucroc%25e8%25af%2584%25e4%25bc%25b0%25e7%25bb%2593%25e6%259e%259c\">AUC\uff1aROC\u8bc4\u4f30\u7ed3\u679c<\/a>\n\n<\/li>\n<li><a href=\"#gauc%25e5%2588%2586%25e7%25bb%2584auc\">GAUC\uff1a\u5206\u7ec4AUC<\/a>\n\n<\/li>\n<li><a href=\"#uplift%25e6%259b%25b2%25e7%25ba%25bf%25e4%25b8%258eauuc\">Uplift\u66f2\u7ebf\u4e0eAUUC<\/a>\n<\/li><\/ul>\n\n<h4 class=\"wp-block-heading\" id=\"%25e6%25b7%25b7%25e6%25b7%2586%25e7%259f%25a9%25e9%2598%25b5%25e5%2588%2586%25e7%25b1%25bb%25e6%258c%2587%25e6%25a0%2587%25e4%25b8%258e%25e9%2598%2588%25e5%2580%25bc\">\u6df7\u6dc6\u77e9\u9635\u3001\u5206\u7c7b\u6307\u6807\u4e0e\u9608\u503c<\/h4>\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">\u5f53\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u4e8c\u5206\u7c7b\u95ee\u9898\u7684\u573a\u666f\uff0c\u7ed3\u679c\u65e0\u975e\u56db\u79cd\uff0c\u6211\u4eec\u53ef\u4ee5\u505a\u6210\u4e00\u4e2a\u6df7\u6dc6\u77e9\u9635\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u9884\u6d4b\u7ed3\u679c\\\u771f\u5b9e\u7ed3\u679c<\/td><td>Positive<\/td><td>Negative<\/td><\/tr><tr><td>Positive<\/td><td><strong>TP<\/strong> (True Positive)<\/td><td><strong>FP<\/strong> (False Positive)<\/td><\/tr><tr><td>Negative<\/td><td><strong>FN<\/strong> (False Negative)<\/td><td><strong>TN<\/strong> (True Negative)<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">\u5176\u4e2d\u6211\u4eec\u53ef\u4ee5\u5173\u6ce8\u4e24\u4e2a\u6307\u6807\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TPR\uff1a<math data-latex=\"\\frac{TP}{TP+FN}\"><semantics><mfrac><mrow><mi>T<\/mi><mi>P<\/mi><\/mrow><mrow><mi>T<\/mi><mi>P<\/mi><mo>+<\/mo><mi>F<\/mi><mi>N<\/mi><\/mrow><\/mfrac><annotation encoding=\"application\/x-tex\">\\frac{TP}{TP+FN}<\/annotation><\/semantics><\/math>\uff0c\u5373\u771f\u5b9e\u4e3a\u6b63\u7684\u4eba\u7fa4\u4e2d\uff0c\u5224\u522b\u51fa\u7684\u6bd4\u4f8b\uff0c\u53ec\u56de\u7387\uff0c\u8d8a\u9ad8\u8d8a\u597d<\/li>\n\n\n\n<li>FPR\uff1a<math data-latex=\"\\frac{FP}{FP+TN}\"><semantics><mfrac><mrow><mi>F<\/mi><mi>P<\/mi><\/mrow><mrow><mi>F<\/mi><mi>P<\/mi><mo>+<\/mo><mi>T<\/mi><mi>N<\/mi><\/mrow><\/mfrac><annotation encoding=\"application\/x-tex\">\\frac{FP}{FP+TN}<\/annotation><\/semantics><\/math>\uff0c\u5373\u771f\u5b9e\u4e3a\u8d1f\u7684\u4eba\u7fa4\u4e2d\uff0c\u88ab\u9519\u5224\u4e3a\u6b63\u7684\u6bd4\u4f8b\uff0c\u8bef\u62a5\u7387\uff0c\u8d8a\u4f4e\u8d8a\u597d<\/li>\n<\/ul>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u6211\u4eec\u8003\u8651\u5206\u7c7b\u6a21\u578b\u7684\u8f93\u51fa\uff0c\u7ecf\u8fc7\u7ebf\u6027\u5c42\u5f97\u5230 logits \u503c\uff0c\u518d\u7ecf\u8fc7\u975e\u7ebf\u6027\u53d8\u5316\u4e3a\u6982\u7387\u503c\uff0c\u6bd4\u5982 Positive \u7684\u6982\u7387\u4e3a0.9\uff0c\u90a3\u6211\u4eec\u4ee5\u5224\u5b9a\u662f P\uff0c\u5224\u5b9a\u7684\u6807\u51c6\u53ef\u4ee5\u662f0.5\uff0c\u4e5f\u53ef\u4ee5\u6839\u636e\u4efb\u52a1\u7684\u4fa7\u91cd\u6539\u53d8\uff0c\u4f46\u603b\u6709\u4e00\u4e2a\u9608\u503c\u6765\u6839\u636e\u6982\u7387\u503c\u8fdb\u884c\u5206\u7c7b\u5224\u522b\u3002\u5728\u4e0d\u540c\u9608\u503c\u4e0b\uff0cTPR\u548cFPR\u7684\u503c\u90fd\u4f1a\u53d1\u751f\u6539\u53d8<\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"roc%25e6%259b%25b2%25e7%25ba%25bf\">ROC\u66f2\u7ebf<\/h4>\n\n\n<p class=\"wp-block-paragraph\">ROC\u66f2\u7ebf\uff08Receiver Operating Characteristic\uff09\u5c31\u662f\u5728\u4e0d\u540c\u9608\u503c\u4e0b\u7684TPR\u4e0eFPR\u7684\u66f2\u7ebf\uff0c\u7eb5\u8f74\u8868\u793aTPR\u5927\u5c0f\uff0c\u6a2a\u8f74\u8868\u793aFPR\u5927\u5c0f\u3002\u6211\u4eec\u5148\u5217\u51fa\u4e0d\u540c\u9608\u503c\u4e0b\u7684\u6bd4\u503c\uff0c\u5f53\u9608\u503c\u4e3a1\u65f6\uff0c\u6837\u672c\u5168\u90e8\u88ab\u5224\u5b9a\u4e3aN\uff0c\u53ec\u56de\u7387\u4e3a0\uff1b\u6b64\u540e\u968f\u7740\u9608\u503c\u589e\u52a0\uff0c\u88ab\u5224\u5b9a\u4e3aT\u7684\u6837\u672c\u6570\u589e\u52a0\uff0c\u53ec\u56de\u7387\u4e0a\u5347\uff1b\u9608\u503c\u4e3a0\u65f6\uff0c\u6837\u672c\u5168\u90e8\u88ab\u5224\u5b9a\u4e3aT\uff0c\u53ec\u56de\u7387\u4e3a1\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee5\u539f\u70b9\u4e3a\u8d77\u70b9\uff0c\u53ef\u4ee5\u753b\u51fa\u968f\u673a\u5206\u7c7b\u5668\u57fa\u7ebf\uff0c\u8868\u793a\u968f\u673a\u731c\u6d4b\u7684\u7ed3\u679c\u3002<\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"aucroc%25e8%25af%2584%25e4%25bc%25b0%25e7%25bb%2593%25e6%259e%259c\">AUC\uff1aROC\u8bc4\u4f30\u7ed3\u679c<\/h4>\n\n\n<p class=\"wp-block-paragraph\">AUC\uff08Area Under Curve\uff09\u8868\u793aROC\u66f2\u7ebf\u4e0b\u7684\u9762\u79ef\uff0c\u4e00\u822c\u53d6\u503c[0.5\uff0c1.0]\uff0c0.5\u65f6\u7b49\u4ef7\u4e8e\u968f\u673a\u6a21\u578b\uff0c1.0\u65f6\u4e3a\u7406\u60f3\u5206\u7c7b\u5668\u3002AUC\u662fROC\u66f2\u7ebf\u7684\u91cf\u5316\u8bc4\u4f30\u7ed3\u679c\uff0c\u6574\u4f53\u8bc4\u4ef7\u4e0d\u53d7\u9608\u503c\u5f71\u54cd\uff0c\u7c7b\u522b\u4e0d\u5e73\u8861\u65f6\uff08\u5747\u8861\u65f6\u51c6\u786e\u7387Accuracy\u6709\u6548\uff09\u4f9d\u7136\u53ef\u9760\uff0c\u66f4\u65b9\u4fbf\u6bd4\u8f83\u4e0d\u540c\u6a21\u578b\u80fd\u529b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AUC\u53ef\u76f4\u89c2\u7406\u89e3\u4e3a\uff1a\u968f\u673a\u62bd\u53d6\u4e00\u4e2aP\u6837\u672c\u548cN\u6837\u672c\uff0c\u6a21\u578b\u7ed9P\u6253\u5206\u6bd4\u7ed9N\u6253\u5206\u9ad8\u7684\u6982\u7387\u3002\u53c8\u53ef\u4ee5\u7406\u89e3\u4e3a\u6a21\u578b\u628a\u6b63\u6837\u672c\u6392\u5e8f\u5728\u8d1f\u6837\u672c\u4e4b\u524d\u7684\u6982\u7387\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gini\u7cfb\u6570\u662fAUC\u7684\u5f52\u4e00\u5316\uff1a<math data-latex=\"Gini=2\\cdot AUC-1\"><semantics><mrow><mi>G<\/mi><mi>i<\/mi><mi>n<\/mi><mi>i<\/mi><mo>=<\/mo><mn>2<\/mn><mo>\u22c5<\/mo><mi>A<\/mi><mi>U<\/mi><mi>C<\/mi><mo>\u2212<\/mo><mn>1<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">Gini=2\\cdot AUC-1<\/annotation><\/semantics><\/math><\/p>\n\n\n<h4 class=\"wp-block-heading\" id=\"gauc%25e5%2588%2586%25e7%25bb%2584auc\">GAUC\uff1a\u5206\u7ec4AUC<\/h4>\n\n\n<p class=\"wp-block-paragraph\">G\u5373\u4ee3\u8868Group\uff0c\u6838\u5fc3\u601d\u60f3\u662f\uff1a\u5148\u5bf9\u6837\u672c\u8fdb\u884c\u5206\u7ec4\uff0c\u8ba1\u7b97\u7ec4\u5185AUC\uff0c\u7136\u540e\u6309\u7167\u5404\u7ec4\u7684\u6743\u91cd\uff08\u6837\u672c\u91cf\u7b49\uff09\uff0c\u5bf9\u7ec4\u5185AUC\u8fdb\u884c\u52a0\u6743\u5e73\u5747\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u95ee\u9898\u6e90\u4e8eAUC\u8003\u8651\u6240\u6709\u7684\u6837\u672c\uff0c\u800c\u5728\u63a8\u8350\u9886\u57df\uff0c\u6211\u4eec\u8003\u8651\u7684\u662f\u540c\u4e2a\u7528\u6237\u5185\u90e8\u7684\u70b9\u51fb\u6216\u8f6c\u5316\u7684item\u7684\u6392\u5e8f\u3002\u7528\u6237\u504f\u5dee\u5bf9\u8bc4\u4f30\u7ed3\u679c\u4f1a\u5e72\u6270\uff0c\u4f8b\u5982Score shift\u95ee\u9898\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5047\u8bbe\u6709\u7528\u6237A\u70b9\u51fb\u73870.20\uff0c\u7528\u6237B\u70b9\u51fb\u73870.01\uff0c\u6a21\u578b\u7ed9A\u7684\u6240\u6709item\u6253\u9ad8\u5206\uff0cB\u7684item\u6253\u4f4e\u5206\uff0cAUC\u503c\u5c31\u5f88\u9ad8<\/li>\n\n\n\n<li>\u4e0d\u4f1a\u8003\u8651\u6a21\u578b\u6709\u6ca1\u6709\u628aA\/B\u4f1a\u70b9\u7684\u5546\u54c1\u6392\u5728\u4e0d\u4f1a\u70b9\u7684\u5546\u54c1\u524d\u9762<\/li>\n\n\n\n<li>\u7528\u6237\u53ea\u4f1a\u770b\u5230\u81ea\u5df1\u7684\u5217\u8868\uff0c\u6a21\u578b\u7ebf\u4e0a\u6548\u679c\u5dee\u3002<\/li>\n<\/ul>\n\n\n<h4 class=\"wp-block-heading\" id=\"uplift%25e6%259b%25b2%25e7%25ba%25bf%25e4%25b8%258eauuc\">Uplift\u66f2\u7ebf\u4e0eAUUC<\/h4>\n\n\n<p class=\"wp-block-paragraph\">\u7d2f\u8ba1\u589e\u76ca\u66f2\u7ebf\u5c31\u662f\u6309\u9884\u6d4b uplift \u503c\u4ece\u9ad8\u5230\u4f4e\u6392\u5e8f\uff0c\u89c2\u5bdf\u968f\u7740\u6295\u653e\u6bd4\u4f8b\u589e\u52a0\uff0c\u7d2f\u8ba1\u80fd\u62ff\u5230\u591a\u5c11\u7684\u771f\u5b9e\u589e\u91cf\u6536\u76ca\uff0c\u6bd4\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>uplift\u5206\u6570\u6392\u5e8f\u540e top10%\uff0ctop20%\u5206\u6876<\/li>\n\n\n\n<li>\u8ba1\u7b97\u8fd9\u4e00\u6279\u4e00\u6279\u7528\u6237\u7684\u5e73\u5747uplift<\/li>\n\n\n\n<li>\u4f5c\u7d2f\u79ef\u503c<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u6a2a\u8f74\u662f\u7528\u6237\u6bd4\u4f8b\uff0c\u7eb5\u8f74\u662f\u6307\u6807\uff08\u589e\u91cfGMV\u3001\u589e\u91cf\u4e0b\u5355\uff09\uff0c\u597d\u7684\u6a21\u578b<strong>\u5de6\u4fa7\u5feb\u901f\u4e0a\u5347<\/strong>\uff0c\u5e76\u4e14\u6574\u4f53<strong>\u9ad8\u4e8e\u968f\u673a\u57fa\u51c6\u7ebf<\/strong>\uff0c\u968f\u7740\u7528\u6237\u6bd4\u4f8b\u7684\u589e\u52a0\uff0c\u589e\u901f\u7f13\u6162\uff0c\u662f\u56e0\u4e3a\u4eba\u7fa4uplift\u6bd4\u8f83\u4f4e\uff0c\u751a\u81f3\u662f\u8d1f\u503c\uff0c\u4e0d\u503c\u5f97\u7ee7\u7eed\u6295\u653e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u65f6\u8fd8\u6709Qini \u66f2\u7ebf\uff0c\u8868\u793a\u76f8\u6bd4\u968f\u673a\u7b56\u7565\uff0c\u83b7\u5f97\u4e86\u591a\u5c11\u589e\u91cf\u3002QINI\u7cfb\u6570\u8868\u793a\u7d2f\u8ba1\u589e\u76ca\u66f2\u7ebf\u4e0e\u968f\u673a\u57fa\u51c6\u7ebf\u56f4\u6210\u7684\u9762\u79ef\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u771f\u5b9e\u4e1a\u52a1\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u5b83\u5f53\u4f5c\u662f\u4e00\u4e2a\u7c97\u7565\u7684\u6295\u653e\u9608\u503c\u53c2\u7167\uff0c\u5982\u679c20%\u7684\u65f6\u5019\u4e0a\u5347\u5feb\uff0c30%\u540e\u8d8b\u4e8e\u5e73\u7f13\uff0c\u90a3\u4e48\u4e1a\u52a1\u4e0a\u53ef\u80fd\u5c31\u66f4\u591a\u7ed9\u524d20%\u5de6\u53f3\u7684\u4eba\u53d1\u5238\uff0c\u4f46\u662f\u4e5f\u8981\u8003\u8651\u9884\u7b97\u7ea6\u675f\u3001\u98ce\u9669\u7b49\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df7\u6dc6\u77e9\u9635\u3001\u5206\u7c7b\u6307\u6807\u4e0e\u9608\u503c \u5f53\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u4e8c\u5206\u7c7b\u95ee\u9898\u7684\u573a\u666f\uff0c\u7ed3\u679c\u65e0\u975e\u56db\u79cd\uff0c\u6211\u4eec\u53ef\u4ee5\u505a\u6210\u4e00\u4e2a\u6df7\u6dc6\u77e9\u9635\uff1a \u9884\u6d4b\u7ed3\u679c\\ &hellip; <a href=\"https:\/\/xuzbo.top\/index.php\/2026\/07\/13\/roc-auc\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201cROC\/AUC\/GAUC\/AUUC\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-399","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/xuzbo.top\/index.php\/wp-json\/wp\/v2\/posts\/399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xuzbo.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xuzbo.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xuzbo.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xuzbo.top\/index.php\/wp-json\/wp\/v2\/comments?post=399"}],"version-history":[{"count":5,"href":"https:\/\/xuzbo.top\/index.php\/wp-json\/wp\/v2\/posts\/399\/revisions"}],"predecessor-version":[{"id":408,"href":"https:\/\/xuzbo.top\/index.php\/wp-json\/wp\/v2\/posts\/399\/revisions\/408"}],"wp:attachment":[{"href":"https:\/\/xuzbo.top\/index.php\/wp-json\/wp\/v2\/media?parent=399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xuzbo.top\/index.php\/wp-json\/wp\/v2\/categories?post=399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xuzbo.top\/index.php\/wp-json\/wp\/v2\/tags?post=399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}