{"id":6410,"date":"2025-10-19T22:09:37","date_gmt":"2025-10-19T14:09:37","guid":{"rendered":"https:\/\/nullthought.net\/?p=6410"},"modified":"2025-10-19T22:09:47","modified_gmt":"2025-10-19T14:09:47","slug":"%e6%a8%a1%e5%9e%8b%e5%9d%8d%e5%a1%8c%ef%bc%88model-collapse%ef%bc%89","status":"publish","type":"post","link":"https:\/\/nullthought.net\/?p=6410","title":{"rendered":"\u6a21\u578b\u574d\u584c\uff08model collapse\uff09"},"content":{"rendered":"\n<p>\u8bba\u6587<strong><a href=\"https:\/\/www.nature.com\/articles\/s41586-024-07566-y\" target=\"_blank\" rel=\"noreferrer noopener\">AI models collapse when trained on recursively generated data<\/a><\/strong>\u5173\u6ce8\u4e00\u4e2a\u5c06\u957f\u671f\u5f71\u54cd\u751f\u6210\u5f0fAI\u751f\u6001\u7684\u6838\u5fc3\u95ee\u9898\uff1a\u5f53\u6a21\u578b\u4e0d\u65ad\u5728\u7531\u524d\u4ee3\u6a21\u578b\u751f\u6210\u7684\u6570\u636e\u4e0a\u518d\u8bad\u7ec3\u65f6\uff0c\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f\u4f5c\u8005\u63d0\u51fa\u5e76\u7cfb\u7edf\u523b\u753b\u4e86\u201c<strong>\u6a21\u578b\u574d\u584c\uff08model collapse\uff09<\/strong>\u201d\u73b0\u8c61\u2014\u2014\u6a21\u578b\u4e00\u4ee3\u4ee3\u504f\u79bb\u771f\u5b9e\u6570\u636e\u5206\u5e03\uff0c\u5c24\u5176\u662f\u5206\u5e03\u5c3e\u90e8\u4fe1\u606f\u88ab\u9010\u6b65\u9057\u5fd8\uff0c\u6700\u7ec8\u5411\u4f4e\u65b9\u5dee\u3001\u5355\u5cf0\u7684\u201c\u70b9\u4f30\u8ba1\u201d\u6536\u7f29\uff0c\u5bfc\u81f4\u5bf9\u73b0\u5b9e\u7684\u7cfb\u7edf\u6027\u8bef\u611f\u77e5\u3002\u7814\u7a76\u4e0d\u4ec5\u5728\u76f4\u89c2\u5c42\u9762\u7ed9\u51fa\u673a\u5236\u56fe\u793a\uff0c\u8fd8\u5728\u79bb\u6563\u5206\u5e03\u4e0e\u9ad8\u65af\u8fd1\u4f3c\u4e0b\u63d0\u4f9b\u6570\u5b66\u76f4\u89c9\uff0c\u5e76\u4ee5OPT-125M\u5728 WikiText-2 \u4e0a\u7684\u591a\u4ee3\u5fae\u8c03\u5b9e\u9a8c\u4f5c\u5b9e\u8bc1\u652f\u6491\u3002\u8be5\u7ed3\u8bba\u5bf9\u4f9d\u8d56\u7f51\u7edc\u722c\u53d6\u6570\u636e\u7684\u672a\u6765\u6a21\u578b\u8bad\u7ec3\u5177\u6709\u6df1\u8fdc\u5f71\u54cd\uff1a\u4eba\u7c7b\u771f\u5b9e\u4ea4\u4e92\u6570\u636e\u4e0e\u6570\u636e\u6eaf\u6e90\u80fd\u529b\u7684\u91cd\u8981\u6027\u5c06\u4e0e\u65e5\u4ff1\u589e\u3002<\/p>\n\n\n\n<p>\u8bba\u6587\u4f5c\u8005\u4e3aIlia Shumailov, Zakhar Shumaylov, Yiren Zhao, Nicolas Papernot, Ross Anderson &amp; Yarin Gal\uff0c\u6765\u81eaUniversity of Oxford, University of Cambridge, Imperial College London, University of Toronto, Vector Institute, University of Edinburgh\u3002<\/p>\n\n\n\n<p>\u4e00\u3001\u6a21\u578b\u574d\u584c\u7684\u5b9a\u4e49\u4e0e\u76f4\u89c2\u89e3\u91ca<br>\u4f5c\u8005\u5c06\u6a21\u578b\u574d\u584c\u5b9a\u4e49\u4e3a\uff1a<strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#cf2e2e\" class=\"has-inline-color\">\u751f\u6210\u6a21\u578b\u8de8\u4ee3\u5b66\u4e60\u65f6\uff0c\u5176\u751f\u6210\u7684\u6570\u636e\u6c61\u67d3\u4e0b\u4e00\u4ee3\u8bad\u7ec3\u96c6\uff0c\u8bef\u5bfc\u6a21\u578b\u5bf9\u771f\u5b9e\u5206\u5e03\u7684\u8ba4\u77e5<\/mark><\/strong>\u3002\u574d\u584c\u5206\u4e3a\u4e24\u7c7b\uff1a\u65e9\u671f\u574d\u584c\uff08\u5148\u4e22\u5931\u4f4e\u6982\u7387\u5c3e\u90e8\u4e8b\u4ef6\uff09\u4e0e\u665a\u671f\u574d\u584c\uff08\u5206\u5e03\u6574\u4f53\u5411\u67d0\u4e2a\u6a21\u5f0f\u584c\u7f29\u3001\u65b9\u5dee\u663e\u8457\u964d\u4f4e\uff09\u3002\u6838\u5fc3\u76f4\u89c9\u662f\uff1a\u6bcf\u4e00\u4ee3\u90fd\u5b58\u5728\u91c7\u6837\u4e0e\u62df\u5408\u8bef\u5dee\uff1b\u9ad8\u6982\u7387\u4e8b\u4ef6\u5728\u6570\u636e\u4e2d\u88ab\u8fc7\u5ea6\u5f3a\u5316\uff0c\u800c\u4f4e\u6982\u7387\u4e8b\u4ef6\u66f4\u53ef\u80fd\u5728\u82e5\u5e72\u4ee3\u540e\u201c\u62bd\u4e0d\u5230\u3001\u5b66\u4e0d\u5230\u201d\uff0c\u4ece\u800c\u6c38\u4e45\u6d41\u5931\u3002\u6a21\u578b\u7684\u201c\u73b0\u5b9e\u6295\u5f71\u201d\u9010\u6b65\u53cd\u8fc7\u6765\u5851\u9020\u8bad\u7ec3\u6570\u636e\u4e0e\u4e0b\u4e00\u4ee3\u6a21\u578b\uff0c\u4f7f\u5c3e\u90e8\u8d8a\u6765\u8d8a\u8584\uff0c\u6700\u7ec8\u201c\u6bd2\u5316\u73b0\u5b9e\u201d\u3002<\/p>\n\n\n\n<p>\u4e8c\u3001\u8bef\u5dee\u6765\u6e90\u4e0e\u4ee3\u9645\u5b66\u4e60\u8fc7\u7a0b<br>\u4f5c\u8005\u5c06\u8de8\u4ee3\u5b66\u4e60\u7684\u8bef\u5dee\u62c6\u4e3a\u4e09\u7c7b\uff0c\u5e76\u5f3a\u8c03\u5b83\u4eec\u53ef\u53e0\u52a0\u653e\u5927\uff1a<br>1\uff09\u7edf\u8ba1\u8fd1\u4f3c\u8bef\u5dee\uff1a\u4efb\u4f55\u6709\u9650\u6837\u672c\u90fd\u4f1a\u4e22\u4fe1\u606f\uff0c\u7279\u522b\u662f\u5c3e\u90e8\u4e8b\u4ef6\u7684\u62bd\u6837\u7f3a\u5931\uff0c\u4ee3\u9645\u590d\u5408\u540e\u8bef\u5dee\u653e\u5927\u3002<br>2\uff09\u51fd\u6570\u8868\u8fbe\u8bef\u5dee\uff1a\u6709\u9650\u5bb9\u91cf\u7684\u51fd\u6570\u65cf\uff08\u5982\u6709\u9650\u5bbd\u5ea6\u795e\u7ecf\u7f51\u7edc\uff09\u65e0\u6cd5\u5b8c\u7f8e\u8986\u76d6\u771f\u5b9e\u5206\u5e03\u652f\u6301\uff0c\u53ef\u80fd\u5728\u771f\u5b9e\u652f\u6301\u4e4b\u5916\u8d4b\u4e88\u975e\u96f6\u5bc6\u5ea6\uff0c\u6216\u5728\u771f\u5b9e\u652f\u6301\u5185\u7ed9\u51fa\u96f6\u5bc6\u5ea6\u3002<br>3\uff09\u51fd\u6570\u903c\u8fd1\u8bef\u5dee\uff1a\u7531\u4f18\u5316\u8fc7\u7a0b\u4e0e\u76ee\u6807\u51fd\u6570\u5e26\u6765\u7684\u7cfb\u7edf\u6027\u504f\u5dee\uff08\u5982SGD\u7684\u9690\u5f0f\u504f\u7f6e\u3001\u635f\u5931\u9009\u62e9\uff09\u3002<br>\u8fd9\u4e9b\u8bef\u5dee\u5e76\u975e\u603b\u80fd\u4e92\u76f8\u62b5\u6d88\uff0c\u73b0\u5b9e\u4e2d\u66f4\u5e38\u89c1\u7684\u662f\u201c\u7ea7\u8054\u201d\u6548\u5e94\uff0c\u4f7f\u6a21\u578b\u4e00\u4ee3\u4ee3\u504f\u79bb\u771f\u5b9e\u5206\u5e03\u3002<\/p>\n\n\n\n<p>\u4e09\u3001\u7406\u8bba\u76f4\u89c9\u4e0e\u6570\u5b66\u6a21\u578b<br>1 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models collapse when trained on recursively genera 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