{"id":1629,"date":"2023-08-08T15:16:09","date_gmt":"2023-08-08T07:16:09","guid":{"rendered":"https:\/\/usei.cn\/?p=1629"},"modified":"2023-08-24T14:10:19","modified_gmt":"2023-08-24T06:10:19","slug":"%e6%a8%a1%e5%9e%8b%e8%af%84%e4%bb%b7%e6%8c%87%e6%a0%87","status":"publish","type":"post","link":"https:\/\/usei.cn\/index.php\/2023\/08\/08\/%e6%a8%a1%e5%9e%8b%e8%af%84%e4%bb%b7%e6%8c%87%e6%a0%87\/","title":{"rendered":"\u6a21\u578b\u8bc4\u4ef7\u6307\u6807"},"content":{"rendered":"\n

\u57fa\u7840\u6307\u6807<\/h2>\n\n\n\n
<\/td><\/td>\u9884\u6d4b\u503c<\/td><\/tr>
<\/td><\/td>True<\/td>False<\/td><\/tr>
\u771f
\u5b9e
\u503c<\/td>		True<\/td>TP
\u88ab\u6b63\u786e\u5730\u5212\u5206\u4e3a\u6b63\u4f8b\u7684\u4e2a\u6570
\u5373\u5b9e\u9645\u4e3a\u6b63\u4f8b\u4e14\u88ab\u5206\u7c7b\u5668\u5212\u5206\u4e3a\u6b63\u4f8b\u7684\u5b9e\u4f8b\u6570
True ->True<\/td>		TN
\u88ab\u9519\u8bef\u5730\u5212\u5206\u4e3a\u8d1f\u4f8b\u7684\u4e2a\u6570
\u5373\u5b9e\u9645\u4e3a\u6b63\u4f8b\u4f46\u88ab\u5206\u7c7b\u5668\u5212\u5206\u4e3a\u8d1f\u4f8b\u7684\u5b9e\u4f8b\u6570
True ->False<\/td><\/tr>
False<\/td>
FP
\u88ab\u9519\u8bef\u5730\u5212\u5206\u4e3a\u6b63\u4f8b\u7684\u4e2a\u6570
\u5373\u5b9e\u9645\u4e3a\u8d1f\u4f8b\u4f46\u88ab\u5206\u7c7b\u5668\u5212\u5206\u4e3a\u6b63\u4f8b\u7684\u5b9e\u4f8b\u6570
False ->True<\/td>		FN
\u88ab\u6b63\u786e\u5730\u5212\u5206\u4e3a\u8d1f\u4f8b\u7684\u4e2a\u6570
\u5373\u5b9e\u9645\u4e3a\u8d1f\u4f8b\u4e14\u88ab\u5206\u7c7b\u5668\u5212\u5206\u4e3a\u8d1f\u4f8b\u7684\u5b9e\u4f8b\u6570
False ->False<\/td><\/tr><\/tbody><\/table>

\u6bd4\u5982\u6211\u670910\u5f20\u56fe\uff0c5\u5f20\u732b\uff0c5\u5f20\u72d7\uff0c\u6211\u5168\u90e8\u9884\u6d4b\u4e3a\u732b\uff0c\u732b\u9884\u6d4b\u5168\u5bf9\uff0c\u7cbe\u786e\u5ea6\uff1a5\/\uff085+0\uff09=100%\u3002\u540c\u7406\uff0c\u5269\u4e0b5\u5f20\u72d7\u4e5f\u4e5f\u9884\u6d4b\u4e3a\u4e86\u732b\uff0c\u53ec\u56de\u7387\uff1a5\/\uff085+5\uff09 = 50%<\/figcaption><\/figure>\n\n\n\n

precision \u51c6\u786e\u7387\uff08P\uff09<\/h3>\n\n\n\n

\u9884\u6d4b\u6837\u672c\u4e2d\u5b9e\u9645\u6b63\u6837\u672c\u6570 \/ \u6240\u6709\u7684\u6b63\u6837\u672c\u6570<\/p>\n\n\n\n

\u516c\u5f0f\uff1a   precision=TP\/\uff08TP+FP\uff09<\/strong><\/p>\n\n\n\n

recall \u53ec\u56de\u7387\uff08R\uff09<\/h3>\n\n\n\n

\u9884\u6d4b\u6837\u672c\u4e2d\u5b9e\u9645\u6b63\u6837\u672c\u6570 \/ \u9884\u6d4b\u7684\u6837\u672c\u6570<\/p>\n\n\n\n

\u516c\u5f0f\uff1a  Recall=TP\/(TP+FN)=TP\/P<\/strong><\/p>\n\n\n\n

P-R\u66f2\u7ebf<\/h3>\n\n\n\n

P-R\u66f2\u7ebf\u5373 \u4ee5 precision<\/strong> \u548c recall<\/strong> \u4f5c\u4e3a \u7eb5\u3001\u6a2a\u8f74\u5750\u6807<\/strong> \u7684\u4e8c\u7ef4\u66f2\u7ebf\u3002\u901a\u8fc7\u9009\u53d6\u4e0d\u540c\u9608\u503c\u65f6\u5bf9\u5e94\u7684\u7cbe\u5ea6\u548c\u53ec\u56de\u7387\u753b\u51fa\u3002\u4e00\u822c\u6765\u8bf4\uff0cprecision\u548crecall\u662f\u9c7c\u4e0e\u718a\u638c\u7684\u5173\u7cfb\uff0c\u5f80\u5f80\u53ec\u56de\u7387\u8d8a\u9ad8\uff0c\u51c6\u786e\u7387\u8d8a\u4f4e<\/p>\n\n\n\n

\"\"<\/div><\/a><\/figure>\n\n\n\n

AP\u503c<\/h3>\n\n\n\n

P-R\u66f2\u7ebf\u56f4\u8d77\u6765\u7684\u9762\u79ef\u5c31\u662fAP\u503c\uff0c\u901a\u5e38\u6765\u8bf4\u4e00\u4e2a\u8d8a\u597d\u7684\u5206\u7c7b\u5668\uff0cAP\u503c\u8d8a\u9ad8<\/p>\n\n\n\n

mAP \u591a\u5206\u7c7b<\/h3>\n\n\n\n

\u5c31\u662f\u6240\u6709\u7c7bAP\u7684\u5e73\u5747\u503c<\/p>\n\n\n\n

IOU\uff08\u4ea4\u5e76\u6bd4\uff09<\/h2>\n\n\n\n

Intersection-over-Union \u662f\u76ee\u6807\u68c0\u6d4b\u4e2d\u4f7f\u7528\u7684\u4e00\u4e2a\u6982\u5ff5\uff0c\u662f\u4e00\u79cd\u6d4b\u91cf\u5728\u7279\u5b9a\u6570\u636e\u96c6\u4e2d\u68c0\u6d4b\u76f8\u5e94\u7269\u4f53\u51c6\u786e\u5ea6\u7684\u4e00\u4e2a\u6807\u51c6\u3002IOU\u8868\u793a\u4e86\u4ea7\u751f\u7684\u5019\u9009\u6846\uff08candidate bound\uff09\u4e0e\u539f\u6807\u8bb0\u6846\uff08ground truth bound\uff09\u7684\u4ea4\u53e0\u7387\u6216\u8005\u8bf4\u91cd\u53e0\u5ea6\uff0c\u4e5f\u5c31\u662f\u5b83\u4eec\u7684\u4ea4\u96c6\u4e0e\u5e76\u96c6\u7684\u6bd4\u503c\u3002\u76f8\u5173\u5ea6\u8d8a\u9ad8\u8be5\u503c\u3002\u6700\u7406\u60f3\u60c5\u51b5\u662f\u5b8c\u5168\u91cd\u53e0\uff0c\u5373\u6bd4\u503c\u4e3a1\u3002<\/p>\n\n\n\n

\"\"<\/div><\/a><\/figure>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

\u57fa\u7840\u6307\u6807 \u9884\u6d4b\u503c True False \u771f\u5b9e\u503c True TP\u88ab\u6b63\u786e\u5730\u5212\u5206\u4e3a\u6b63\u4f8b\u7684\u4e2a\u6570\u5373\u5b9e\u9645\u4e3a\u6b63\u4f8b\u4e14\u88ab\u5206\u7c7b\u5668\u5212 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-1629","post","type-post","status-publish","format-standard","hentry","category-ai"],"_links":{"self":[{"href":"https:\/\/usei.cn\/index.php\/wp-json\/wp\/v2\/posts\/1629","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/usei.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/usei.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/usei.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/usei.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1629"}],"version-history":[{"count":11,"href":"https:\/\/usei.cn\/index.php\/wp-json\/wp\/v2\/posts\/1629\/revisions"}],"predecessor-version":[{"id":1864,"href":"https:\/\/usei.cn\/index.php\/wp-json\/wp\/v2\/posts\/1629\/revisions\/1864"}],"wp:attachment":[{"href":"https:\/\/usei.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/usei.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1629"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/usei.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}