{"id":1298,"date":"2026-02-08T03:12:09","date_gmt":"2026-02-08T03:12:09","guid":{"rendered":"https:\/\/www.highsund.com\/?p=1298"},"modified":"2026-02-08T03:16:29","modified_gmt":"2026-02-08T03:16:29","slug":"%e9%87%8f%e5%8c%96%e6%9c%ba%e5%99%a8%e5%ad%a6%e4%b9%a0%e9%87%8c%e6%a8%a1%e5%9e%8b%e8%b5%b0%e6%8d%b7%e5%be%84%e7%9a%84%e5%85%b8%e5%9e%8b%e7%8e%b0%e8%b1%a1%e4%b8%8e%e5%ba%94%e5%af%b9","status":"publish","type":"post","link":"https:\/\/www.highsund.com\/zh\/2026\/02\/08\/%e9%87%8f%e5%8c%96%e6%9c%ba%e5%99%a8%e5%ad%a6%e4%b9%a0%e9%87%8c%e6%a8%a1%e5%9e%8b%e8%b5%b0%e6%8d%b7%e5%be%84%e7%9a%84%e5%85%b8%e5%9e%8b%e7%8e%b0%e8%b1%a1%e4%b8%8e%e5%ba%94%e5%af%b9\/","title":{"rendered":"\u91cf\u5316\u673a\u5668\u5b66\u4e60\u91cc\u201c\u6a21\u578b\u8d70\u6377\u5f84\u201d\u7684\u5178\u578b\u73b0\u8c61\u4e0e\u5e94\u5bf9\u65b9\u6cd5"},"content":{"rendered":"<p>\u8fd9\u4e2a\u73b0\u8c61\u5728\u91cf\u5316\u91cc\u7279\u522b\u5178\u578b\uff1a\u6a21\u578b\u4f1a\u4f18\u5148\u5b66\u201c\u6700\u5bb9\u6613\u964d\u4f4e loss \u7684\u4fe1\u53f7\u201d\uff0c\u800c\u8fd9\u4e9b\u4fe1\u53f7\u5f80\u5f80\u662f\uff1a<\/p>\n<ul>\n<li><strong>\u4e0d\u53ef\u4ea4\u6613<\/strong>\uff08\u8dcc\u505c \/ \u505c\u724c \/ \u6d41\u52a8\u6027\u592a\u5dee\u3001\u6210\u4ea4\u51b2\u51fb\u5de8\u5927\uff09<\/li>\n<li><strong>\u4e0d\u5141\u8bb8\u66b4\u9732<\/strong>\uff08\u884c\u4e1a \/ \u98ce\u683c \/ beta \u592a\u5f3a\uff0c\u540e\u9762\u4f18\u5316\u5668\u4f1a\u526a\u6389\uff09<\/li>\n<li><strong>\u770b\u8d77\u6765\u5f88\u51c6\u4f46\u5176\u5b9e\u662f\u6cc4\u9732 \/ \u540c\u6b65\u4fe1\u606f<\/strong>\uff08\u65f6\u95f4\u6233\u6ca1\u5bf9\u9f50\u3001\u7528\u5230\u4e86\u6536\u76d8\u540e\u624d\u80fd\u77e5\u9053\u7684\u4e1c\u897f\uff09<\/li>\n<\/ul>\n<p>\u60f3\u8ba9\u8bad\u7ec3\u201c\u65e0\u504f\u201d\uff08\u66f4\u51c6\u786e\u8bf4\uff1a<strong>\u5bf9\u9f50\u4f60\u6700\u7ec8\u80fd\u843d\u5730\u7684 alpha key driver<\/strong>\uff09\uff0c\u5e38\u7528\u529e\u6cd5\u53ef\u4ee5\u6309\u201c\u4ece\u7b80\u5355\u5230\u9ad8\u7ea7\u201d\u5206\u56db\u7c7b\uff1a<\/p>\n<hr \/>\n<h2>1) \u5148\u628a\u201c\u4e0d\u53ef\u5b9e\u73b0\u7684\u90e8\u5206\u201d\u4ece\u6570\u636e\u5c42\u9762\u5173\u6389<\/h2>\n<p>\u8fd9\u662f\u6027\u4ef7\u6bd4\u6700\u9ad8\u7684\u4e00\u6b65\uff08\u5f88\u591a\u65f6\u5019\u6bd4\u6539 loss \u66f4\u6709\u6548\uff09\uff1a<\/p>\n<ul>\n<li><strong>\u4e25\u683c\u53ef\u4ea4\u6613\u8fc7\u6ee4<\/strong>\uff1a\u8dcc\u505c \/ \u505c\u724c \/ \u4e00\u5b57\u677f \/ \u6781\u7aef\u6d41\u52a8\u6027\u65e5\uff0c\u76f4\u63a5\u628a\u8fd9\u4e9b\u6837\u672c\u4ece\u8bad\u7ec3\u6216 label \u91cc <strong>mask \u6389<\/strong>\uff08\u4e0d\u53c2\u4e0e loss\uff09\u3002<\/li>\n<li><strong>\u65f6\u95f4\u6233\u5bf9\u9f50<\/strong>\uff1a\u7279\u5f81\u53ea\u7528\u4f60\u4e0b\u5355\u524d\u80fd\u62ff\u5230\u7684\u7248\u672c\uff1blabel \u4e5f\u6309\u4f60\u771f\u5b9e\u6210\u4ea4\u4ef7\/\u6210\u4ea4\u65f6\u70b9\u5b9a\u4e49\u3002<\/li>\n<li><strong>\u8bad\u7ec3\u96c6\u7684\u80a1\u7968\u6c60 = \u5b9e\u76d8\u80a1\u7968\u6c60<\/strong>\uff1a\u522b\u8ba9\u6a21\u578b\u5728\u8bad\u7ec3\u65f6\u5b66\u5230\u201c\u5c0f\u7968\u3001\u4f4e\u6d41\u52a8\u6027\u201d\u5e26\u6765\u7684\u865a\u5047 alpha\u3002<\/li>\n<\/ul>\n<blockquote>\n<p>\u8fd9\u4e00\u6b65\u7684\u76ee\u7684\uff1a\u522b\u8ba9\u6a21\u578b\u628a\u201c\u4f60\u6839\u672c\u505a\u4e0d\u5230\u7684\u6536\u76ca\u201d\u5f53\u6210\u6700\u7701\u529b\u7684\u6377\u5f84\u3002<\/p>\n<\/blockquote>\n<hr \/>\n<h2>2) \u8ba9 label \u53d8\u6210\u201c\u4f60\u771f\u6b63\u60f3\u8d5a\u7684\u4e1c\u897f\u201d<\/h2>\n<p>\u5982\u679c label \u672c\u8eab\u5c31\u662f\u201c\u6bdb\u6536\u76ca\u201d\uff0c\u6a21\u578b\u5929\u7136\u4f1a\u504f\u5411\u90a3\u4e9b <strong>\u6bdb\u6536\u76ca\u5f88\u5927\u4f46\u6210\u672c\u4e5f\u5f88\u5927 \/ \u4e0d\u53ef\u4ea4\u6613<\/strong> \u7684\u70b9\u3002<\/p>\n<p>\u5e38\u89c1\u66f4\u8d34\u8fd1\u843d\u5730\u7684 label \u8bbe\u8ba1\uff1a<\/p>\n<ul>\n<li><strong>\u51c0\u6536\u76ca label<\/strong>\uff1a\u7528<br \/>\n<code>\u672a\u6765\u6536\u76ca - 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