{"id":87815,"date":"2022-12-05T16:15:47","date_gmt":"2022-12-05T08:15:47","guid":{"rendered":"https:\/\/www.tm-robot.com\/docs\/precision-recall%e5%ae%9a%e7%be%a9%e8%aa%aa%e6%98%8e\/"},"modified":"2023-12-22T16:53:45","modified_gmt":"2023-12-22T08:53:45","slug":"meaning-of-precision-recall-in-ai","status":"publish","type":"docs","link":"https:\/\/www.tm-robot.com.cn\/zh-hans\/docs\/meaning-of-precision-recall-in-ai\/","title":{"rendered":"Meaning of Precision \/ Recall in AI"},"content":{"rendered":"<h2>\u7cfb\u7d71\u6aa2\u6e2c\u80fd\u529b\u8a55\u4f30\u6307\u6a19<\/h2>\n<ul>\n<li>NG\u7522\u54c1 :<\/li>\n<\/ul>\n<p><a href=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/NG.png\"><img loading=\"lazy\" class=\"size-full wp-image-79972 alignleft\" src=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/NG.png\" alt=\"\" width=\"251\" height=\"251\" srcset=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/NG.png 251w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/NG-150x150.png 150w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/NG-100x100.png 100w\" sizes=\"(max-width: 251px) 100vw, 251px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>OK\u7522\u54c1 :<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/OK.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-79978\" src=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/OK.png\" alt=\"\" width=\"251\" height=\"251\" srcset=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/OK.png 251w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/OK-150x150.png 150w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/OK-100x100.png 100w\" sizes=\"(max-width: 251px) 100vw, 251px\" \/><\/a><\/p>\n<ul>\n<li>Positive : <span style=\"color: red;\">\u5be6\u969b\u6240\u95dc\u6ce8\u7684\u985e\u5225<\/span>\uff0c\u672c\u4f8b\u70baNG\u7522\u54c1<\/li>\n<li>Negative : \u8207\u95dc\u6ce8\u985e\u5225\u76f8\u5c0d\u7684\u7522\u54c1\uff0c\u672c\u4f8b\u70baOK\u7522\u54c1<\/li>\n<li>True Positive(TP) = NG\u7522\u54c1\uff0c\u4e14\u88ab\u7cfb\u7d71\u6b63\u78ba\u5224\u5b9a\u70baNG\u7522\u54c1<\/li>\n<li>True Negative(TN) = OK\u7522\u54c1\uff0c\u4e14\u88ab\u7cfb\u7d71\u6b63\u78ba\u5224\u5b9a\u70baOK\u7522\u54c1<\/li>\n<li>False Positive(FP) = OK\u7522\u54c1\uff0c\u4f46\u88ab\u7cfb\u7d71\u5224\u5b9a\u70baNG\u7522\u54c1<\/li>\n<li>False Negative(FN) = NG\u7522\u54c1\uff0c\u4f46\u88ab\u7cfb\u7d71\u5224\u5b9a\u70baOK\u7522\u54c1<\/li>\n<\/ul>\n<p>\u7576\u6aa2\u6e2c\u7cfb\u7d71\u8f38\u51fa = NG<\/p>\n<p><a href=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputNG.png\"><img loading=\"lazy\" class=\"size-full wp-image-80003 aligncenter\" src=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputNG.png\" alt=\"\" width=\"1014\" height=\"205\" srcset=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputNG.png 1014w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputNG-300x61.png 300w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputNG-768x155.png 768w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputNG-360x73.png 360w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputNG-1000x202.png 1000w\" sizes=\"(max-width: 1014px) 100vw, 1014px\" \/><\/a><\/p>\n<p>\u7576\u6aa2\u6e2c\u7cfb\u7d71\u8f38\u51fa = OK<\/p>\n<p><a href=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputOK.png\"><img loading=\"lazy\" class=\"size-full wp-image-80010 aligncenter\" src=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputOK.png\" alt=\"\" width=\"1071\" height=\"201\" srcset=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputOK.png 1071w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputOK-300x56.png 300w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputOK-1024x192.png 1024w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputOK-768x144.png 768w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputOK-360x68.png 360w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/outputOK-1000x188.png 1000w\" sizes=\"(max-width: 1071px) 100vw, 1071px\" \/><\/a><\/p>\n<h2>\u53ec\u56de\u7387\u8207\u7cbe\u78ba\u7387<\/h2>\n<ul>\n<li>\u53ec\u56de\u7387 = TP\/(TP+FN)<\/li>\n<li>\u7cbe\u78ba\u7387 = TP\/(TP+FP)<\/li>\n<\/ul>\n<h3>\u7576\u6aa2\u6e2c\u689d\u4ef6 = \u4e2d\u7b49<\/h3>\n<p><a href=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u4e2d\u7b49-1.png\"><img loading=\"lazy\" class=\"size-full wp-image-80027 aligncenter\" src=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u4e2d\u7b49-1.png\" alt=\"\" width=\"1945\" height=\"550\" srcset=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u4e2d\u7b49-1.png 1945w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u4e2d\u7b49-1-300x85.png 300w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u4e2d\u7b49-1-1024x290.png 1024w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u4e2d\u7b49-1-768x217.png 768w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u4e2d\u7b49-1-360x102.png 360w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u4e2d\u7b49-1-1536x434.png 1536w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u4e2d\u7b49-1-1000x283.png 1000w\" sizes=\"(max-width: 1945px) 100vw, 1945px\" \/><\/a><\/p>\n<ul>\n<li>\u53ec\u56de\u7387 = TP\/(TP+FN) = 8\/9 = 0.89<\/li>\n<\/ul>\n<p>=&gt; \u6bcf100\u7455\u75b5\u54c1\uff0c\u6703\u670911\u4ef6\u6d41\u51fa<\/p>\n<ul>\n<li>\u7cbe\u78ba\u7387 = TP\/(TP+FP) = 8\/10 = 0.80<\/li>\n<\/ul>\n<p>=&gt; \u6bcf100\u4ef6\u88ab\u7cfb\u7d71\u5224\u65b7\u70ba\u7455\u75b5\u7684\u7522\u54c1\uff0c\u5be6\u969b\u4e0a\u5176\u4e2d\u53ea\u670980\u4ef6\u70ba\u7455\u75b5\u54c1<\/p>\n<h3>\u7576\u6aa2\u6e2c\u689d\u4ef6 = \u56b4\u683c (\u63d0\u9ad8\u6aa2\u6e2c\u689d\u4ef6\uff0c\u78ba\u4fddNG\u7522\u54c1\u4e0d\u5916\u6d41)<\/h3>\n<p><a href=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u56b4\u683c.png\"><img loading=\"lazy\" class=\"size-full wp-image-80038 aligncenter\" src=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u56b4\u683c.png\" alt=\"\" width=\"1896\" height=\"550\" srcset=\"https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u56b4\u683c.png 1896w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u56b4\u683c-300x87.png 300w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u56b4\u683c-1024x297.png 1024w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u56b4\u683c-768x223.png 768w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u56b4\u683c-360x104.png 360w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u56b4\u683c-1536x446.png 1536w, https:\/\/tm-robot.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/2022\/12\/\u6aa2\u6e2c\u689d\u4ef6\u56b4\u683c-1000x290.png 1000w\" sizes=\"(max-width: 1896px) 100vw, 1896px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>\u53ec\u56de\u7387 = TP\/(TP+FN) = 9\/9 = 1.00<\/li>\n<\/ul>\n<p>=&gt; \u7455\u75b5\u54c1\u90fd\u80fd100%\u6aa2\u51fa\uff0c\u4e0d\u6703\u6d41\u51fa<\/p>\n<ul>\n<li>\u7cbe\u78ba\u7387 = TP\/(TP+FP) = 9\/12 = 0.75<\/li>\n<\/ul>\n<p>=&gt; \u6bcf100\u4ef6\u88ab\u7cfb\u7d71\u5224\u65b7\u70ba\u7455\u75b5\u7684\u7522\u54c1\uff0c\u5be6\u969b\u4e0a\u5176\u4e2d\u53ea\u670975\u4ef6\u70ba\u7455\u75b5\u54c1<\/p>\n<p>&nbsp;<\/p>\n<h2>\u60c5\u5883<\/h2>\n<ul>\n<li><strong>\u4e00\u3001\u5047\u8a2d\u5de5\u5ee0\u751f\u7522\u826f\u7387\u70ba80%\uff0c\u5373\u6bcf\u4e00\u767e\u4ef6\u670980\u4ef6\u826f\u54c1\uff0c 20\u4ef6NG<\/strong>\n<ul>\n<li>\u5c0e\u5165\u4e00\u53ec\u56de\u738789%\u3001\u7cbe\u78ba\u738780%\u7684\u6aa2\u6e2c\u7cfb\u7d71\uff0c\u7576\u751f\u7522100\u4ef6\u7522\u54c1\uff0c20\u4ef6NG\u54c1\u4e2d\u6703\u6709 2.2( = 20*(1-0.89))\u4ef6NG\u54c1\u6d41\u51fa\uff0c\u6703\u670925 ( = 20\/0.80)\u4ef6\u88ab\u7cfb\u7d71\u5224\u70baNG\uff0c\u9700\u8981\u4eba\u54e1\u8907\u5224<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u7cfb\u7d71\u5c0e\u5165\u6548\u76ca\uff1a<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\n<li>\u670911%\u7684NG\u54c1\u6703\u6d41\u51fa<\/li>\n<li>\u4eba\u54e1\u6aa2\u6e2c\u7531\u767e\u767e\u6aa2\uff0c\u6e1b\u5c11\u70ba100\u4ef6\u6aa2\u9808\u6aa2\u6e2c25\u4ef6\uff0cWorkload\u6e1b\u5c11\u81f3\u539f\u672c\u7684 <b>25%<\/b><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/li>\n<li><b>\u4e8c\u3001<\/b><b>\u5047\u8a2d<\/b><b>\u5de5\u5ee0\u751f\u7522\u826f\u7387\u70ba<\/b><b>80%<\/b><b>\uff0c\u5373\u6bcf\u4e00\u767e\u4ef6\u6709<\/b><b>80<\/b><b>\u4ef6\u826f\u54c1\uff0c <\/b><b>20<\/b><b>\u4ef6<\/b><b>NG<\/b>\n<ul>\n<li>\u5c0e\u5165\u4e00\u53ec\u56de\u7387100%\u3001\u7cbe\u78ba\u738775%\u7684\u6aa2\u6e2c\u7cfb\u7d71\uff0c\u7576\u751f\u7522100\u4ef6\u7522\u54c1\uff0c\u4e0d\u6703\u6709\u7455\u75b5\u54c1\u6d41\u51fa\uff0c\u6703\u670926.67 ( = 20\/0.75)\u4ef6\u88ab\u7cfb\u7d71\u5224\u70baNG\uff0c\u9700\u8981\u4eba\u54e1\u8907\u5224<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u7cfb\u7d71\u5c0e\u5165\u6548\u76ca\uff1a<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"list-style-type: none;\">\n<ol>\n<li>NG\u54c1\u4e0d\u6703\u6d41\u51fa<\/li>\n<li>\u4eba\u54e1\u6aa2\u6e2c\u7531\u767e\u767e\u6aa2\uff0c\u6e1b\u5c11\u70ba100\u4ef6\u6aa2\u9808\u6aa2\u6e2c26.67\u4ef6\uff0cWorkload\u6e1b\u5c11\u81f3\u539f\u672c\u7684 <b>26.67%<\/b><\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li><b>\u4e09\u3001<\/b><b>\u5047\u8a2d<\/b><b>\u5de5\u5ee0\u751f\u7522\u826f\u7387\u70ba<\/b><b>99%<\/b><b>\uff0c\u5373\u6bcf\u4e00\u767e\u4ef6\u6709<\/b><b>99<\/b><b>\u4ef6\u826f\u54c1\uff0c <\/b><b>1<\/b><b>\u4ef6<\/b><b>NG<\/b>\n<ul>\n<li>\u5c0e\u5165\u4e00\u53ec\u56de\u7387100%\u3001\u7cbe\u78ba\u738775%\u7684\u6aa2\u6e2c\u7cfb\u7d71\uff0c\u7576\u751f\u7522100\u4ef6\u7522\u54c1\uff0c\u4e0d\u6703\u6709\u7455\u75b5\u54c1\u6d41\u51fa\uff0c\u6703\u67091.33 ( = 1\/0.75)\u4ef6\u88ab\u7cfb\u7d71\u5224\u70baNG\uff0c\u9700\u8981\u4eba\u54e1\u8907\u5224<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u7cfb\u7d71\u5c0e\u5165\u6548\u76ca\uff1a<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\n<li>\u00a0NG\u54c1\u4e0d\u6703\u6d41\u51fa<\/li>\n<li>\u4eba\u54e1\u6aa2\u6e2c\u7531\u767e\u767e\u6aa2\uff0c\u6e1b\u5c11\u70ba100\u4ef6\u6aa2\u9808\u6aa2\u6e2c1.33\u4ef6\uff0cWorkload\u6e1b\u5c11\u81f3\u539f\u672c\u7684 <b>1.33%<\/b><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7cfb\u7d71\u6aa2\u6e2c\u80fd\u529b\u8a55\u4f30\u6307\u6a19 NG\u7522\u54c1 : &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &#038;n [&hellip;]<\/p>\n","protected":false},"author":7791,"featured_media":0,"parent":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"doc_category":[4586],"doc_tag":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v16.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Meaning of Precision \/ Recall in AI | \u8fbe\u660e\u673a\u5668\u4eba<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Meaning of Precision \/ Recall in AI | \u8fbe\u660e\u673a\u5668\u4eba\" \/>\n<meta property=\"og:description\" content=\"\u7cfb\u7d71\u6aa2\u6e2c\u80fd\u529b\u8a55\u4f30\u6307\u6a19 NG\u7522\u54c1 : &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &amp;n [&hellip;]\" \/>\n<meta property=\"og:url\" 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