{"id":798,"date":"2024-07-15T21:57:40","date_gmt":"2024-07-15T13:57:40","guid":{"rendered":"https:\/\/www.15zhi.net\/blog\/?p=798"},"modified":"2024-07-25T15:16:11","modified_gmt":"2024-07-25T07:16:11","slug":"202407-%e8%ae%ba%e6%96%87%e7%a0%94%e8%af%bb%e6%b1%87%e6%8a%a5-23%e7%ba%a7%e5%bc%a0%e7%9d%bf%e5%bd%a6-pvfed-personalized-vertical-federated-learning-for-client-specific-tasks","status":"publish","type":"post","link":"https:\/\/www.15zhi.net\/blog\/202407-%e8%ae%ba%e6%96%87%e7%a0%94%e8%af%bb%e6%b1%87%e6%8a%a5-23%e7%ba%a7%e5%bc%a0%e7%9d%bf%e5%bd%a6-pvfed-personalized-vertical-federated-learning-for-client-specific-tasks\/","title":{"rendered":"202407 \u8bba\u6587\u7814\u8bfb&#8211;pvFed: Personalized Vertical Federated learning for Client-Specific Tasks"},"content":{"rendered":"\n<p style=\"font-style:normal;font-weight:400\">\u4f5c\u8005\uff1aAkihito Nishikawa, Yuiko Sakuma, Yuma Okuda, Hiroaki Nishi, <br>\u6765\u6e90\uff1aIEEJ Trans 2024<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u7814\u7a76\u80cc\u666f\u4e0e\u610f\u4e49<\/h2>\n\n\n\n<p style=text-indent:2em;>\u8bad\u7ec3\u673a\u5668\u5b66\u4e60 (ML) \u6a21\u578b\u65f6\uff0c\u901a\u5e38\u5c06\u6240\u6709\u6570\u636e\u96c6\u4e2d\u5728\u8bad\u7ec3\u6a21\u578b\u7684\u4e3b\u673a\u4e0a\u3002\u7136\u800c\uff0c\u96c6\u4e2d\u5f0f\u65b9\u6cd5\u5728\u5904\u7406\u53d7\u9690\u79c1\u6216\u76d1\u7ba1\u9650\u5236\u7684\u6570\u636e\u96c6\u65f6\u9762\u4e34\u6311\u6218\uff0c\u4ece\u800c\u9650\u5236\u4e86\u6570\u636e\u7684\u5171\u4eab\u3001\u4f7f\u7528\u548c\u4f20\u8f93\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u89e3\u51b3\u6570\u636e\u65e0\u6cd5\u805a\u5408\u5230\u4e2d\u592e\u670d\u52a1\u5668\u7684\u95ee\u9898\uff0c\u8054\u90a6\u5b66\u4e60\uff08FL\uff09\u4f5c\u4e3a\u4e00\u79cd\u6709\u524d\u9014\u7684\u5206\u5e03\u5f0f\u673a\u5668\u5b66\u4e60\u8303\u5f0f\u5e94\u8fd0\u800c\u751f\u3002FL \u5305\u542b\u7531\u6570\u636e\u5206\u5e03\u7279\u5f81\u5b9a\u4e49\u7684\u4e24\u4e2a\u4e3b\u8981\u7c7b\u522b\uff1a\u6c34\u5e73 FL (HFL) \u548c\u5782\u76f4 FL (VFL)\u3002&nbsp;HFL\u6d89\u53ca\u57fa\u4e8e\u6837\u672c\u7a7a\u95f4\u6765\u5212\u5206\u6570\u636e\u96c6\uff0c\u800cVFL\u6d89\u53ca\u57fa\u4e8e\u7279\u5f81\u7a7a\u95f4\u6765\u5212\u5206\u6570\u636e\u96c6\u3002\u5728\u591a\u4e2a\u670d\u52a1\u534f\u4f5c\u4e3a\u4f7f\u7528\u591a\u4e2a\u670d\u52a1\u7684\u7279\u5b9a\u7528\u6237\u751f\u6210\u63a8\u7406\u7684\u573a\u666f\u4e2d\uff0cVFL \u7279\u522b\u6709\u4ef7\u503c\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u4f7f\u5ba2\u6237\u80fd\u591f\u5229\u7528\u4ed6\u4eec\u65e0\u6cd5\u76f4\u63a5\u8bbf\u95ee\u7684\u529f\u80fd\uff0cVFL \u6709\u53ef\u80fd\u63d0\u9ad8\u63a8\u7406\u7684\u51c6\u786e\u6027\u3002\u4f20\u7edf\u7684 VFL \u65b9\u6cd5\u5229\u7528\u5ba2\u6237\u4e4b\u95f4\u7684\u534f\u4f5c\u6765\u63a8\u65ad\u6240\u6709\u5ba2\u6237\u5171\u4eab\u7684\u5171\u540c\u5168\u7403\u76ee\u6807\u3002\u7136\u800c\uff0c\u5728\u8bb8\u591a\u73b0\u5b9e\u60c5\u51b5\u4e0b\uff0c\u6bcf\u4e2a\u5ba2\u6237\u90fd\u6709\u4e00\u4e2a\u72ec\u7279\u7684\u4efb\u52a1\uff0c\u53ef\u4ee5\u4f7f\u7528\u81ea\u5df1\u7684\u6570\u636e\u96c6\u6765\u5b8c\u6210\u3002<\/p>\n\n\n\n<p>\u5173\u4e8eVFL\u6211\u4eec\u53ef\u4ee5\u8003\u8651\u8fd9\u6837\u4e00\u4e2a\u573a\u666f\uff1a\u60a3\u8005\u54a8\u8be2\u591a\u4e2a\u533b\u7597\u673a\u6784\uff0c\u6bcf\u4e2a\u533b\u7597\u673a\u6784\u4e13\u95e8\u8d1f\u8d23\u4e0d\u540c\u7684\u79d1\u5ba4\u3002\u56e0\u6b64\uff0c\u6bcf\u4e2a\u673a\u6784\u90fd\u4f1a\u5bf9\u60a3\u8005\u8fdb\u884c\u4e0d\u540c\u7684\u6d4b\u8bd5\u5e76\u4fdd\u7559\u5404\u81ea\u7684\u7ed3\u679c\u3002\u56e0\u6b64\uff0c\u6bcf\u4e2a\u533b\u7597\u673a\u6784\u90fd\u4f1a\u5f00\u53d1\u81ea\u5df1\u7684\u673a\u5668\u5b66\u4e60\u6a21\u578b\uff0c\u5229\u7528\u83b7\u53d6\u7684\u6570\u636e\u6765\u63a8\u65ad\u60a3\u8005\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6bcf\u4e2a\u5ba2\u6237\uff08\u533b\u7597\u673a\u6784\uff09\u5171\u4eab\u4e00\u4e2a\u5171\u540c\u7684\u6837\u672c\u7a7a\u95f4\uff08\u60a3\u8005\uff09\uff0c\u4f46\u62e5\u6709\u552f\u4e00\u7684\u7279\u5f81\u7a7a\u95f4\uff08\u6d4b\u8bd5\u7ed3\u679c\uff09\uff0c\u56e0\u6b64\u6570\u636e\u662f\u5782\u76f4\u5206\u5e03\u7684\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u51fa\u4e8e\u9690\u79c1\u8003\u8651\uff0c\u533b\u7597\u6570\u636e\u65e0\u6cd5\u96c6\u4e2d\u3002\u53e6\u4e00\u4e2a\u4f8b\u5b50\u6d89\u53ca\u591a\u670d\u52a1\u5e73\u53f0\u4e0a\u7684\u670d\u52a1\u534f\u8c03\u3002\u5728\u8fd9\u6837\u7684\u5e73\u53f0\u4e2d\uff0c\u7528\u6237\u901a\u8fc7\u7edf\u4e00\u7684ID\u6765\u4f7f\u7528\u5404\u79cd\u670d\u52a1\u3002\u6bcf\u4e2a\u670d\u52a1\u90fd\u4f1a\u6536\u96c6\u5305\u62ec\u7528\u6237\u670d\u52a1\u4f7f\u7528\u5386\u53f2\u548c\u5c5e\u6027\u4fe1\u606f\u5728\u5185\u7684\u6570\u636e\u3002\u7136\u540e\u5229\u7528\u8fd9\u4e9b\u6570\u636e\u6784\u5efa\u65e8\u5728\u63d0\u9ad8\u670d\u52a1\u8d28\u91cf\u7684\u673a\u5668\u5b66\u4e60\u6a21\u578b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u76f8\u5173\u5de5\u4f5c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 \u7eb5\u5411\u8054\u90a6\u5b66\u4e60<\/h3>\n\n\n\n<p>\u8054\u90a6\u5b66\u4e60\u65b9\u6cd5\u6839\u636e\u6570\u636e\u5212\u5206\u7684\u5f62\u5f0f\u53ef\u4ee5\u5206\u4e3a\u4e24\u7c7b\u2014\u2014HFL\u548cVFL\uff0c\u5982\u56fe1\u6240\u793a\u3002 VFL\uff0c\u4e5f\u79f0\u4e3a\u7279\u5f81\u5206\u533a\u8054\u90a6\u5b66\u4e60\uff0c\u5047\u8bbe\u6240\u6709\u5ba2\u6237\u7aef\u90fd\u5177\u6709\u76f8\u4f3c\u6216\u76f8\u540c\u6837\u672c\u7a7a\u95f4\u7684\u6570\u636e\u96c6\uff0c\u4f46\u6570\u636e\u96c6\u7684\u7279\u5f81\u7a7a\u95f4\u4e0d\u540c\u3002 VFL\u7684\u4e00\u4e2a\u5178\u578b\u4f8b\u5b50\u662f\u591a\u4e2a\u533b\u200b\u200b\u7597\u673a\u6784\u5408\u4f5c\u63a8\u65ad\u60a3\u8005\u75c5\u60c5[9]\u3002 \u60a3\u8005\u6839\u636e\u75c5\u60c5\u5230\u4e0d\u540c\u7684\u533b\u7597\u673a\u6784\u5c31\u8bca\uff0c\u6bcf\u4e2a\u673a\u6784\u5bf9\u60a3\u8005\u8fdb\u884c\u4e0d\u540c\u7684\u68c0\u67e5\uff0c\u5bfc\u81f4\u6bcf\u4e2a\u673a\u6784\uff08\u5ba2\u6237\u7aef\uff09\u5bf9\u6bcf\u4e2a\u60a3\u8005\u5b58\u50a8\u7684\u533b\u7597\u4fe1\u606f\uff08\u7279\u5f81\u7a7a\u95f4\uff09\u4e0d\u540c\u3002 \u5c3d\u7ba1\u533b\u7597\u4fe1\u606f\u5bf9\u9690\u79c1\u654f\u611f\u5e76\u4e14\u5fc5\u987b\u4fdd\u5bc6\uff0c\u4f46\u5982\u679c\u4f7f\u7528\u4ece\u591a\u4e2a\u533b\u7597\u673a\u6784\u4e4b\u95f4\u534f\u4f5c\u83b7\u5f97\u7684\u7279\u5f81\u6784\u5efa\u673a\u5668\u5b66\u4e60\u6a21\u578b\uff0c\u800c\u4e0d\u662f\u4ec5\u4ec5\u4f7f\u7528\u4ece\u591a\u4e2a\u533b\u7597\u673a\u6784\u83b7\u5f97\u7684\u7279\u5f81\uff0c\u90a3\u4e48\u9884\u8ba1\u53ef\u4ee5\u63d0\u9ad8\u4e2a\u4f53\u60a3\u8005\u7684\u63a8\u7406\u6027\u80fd\u3002 \u5355\u4e00\u533b\u7597\u673a\u6784\u3002 \u5728 FedAvg \u7b49 HFL \u65b9\u6cd5\u4e2d\uff0c\u9884\u8ba1\u4f1a\u6709\u5927\u91cf\u5ba2\u6237\u7aef\u53c2\u4e0e\u8054\u90a6\u5b66\u4e60\u8fc7\u7a0b\uff0c\u800c\u5728 VFL \u65b9\u6cd5\u4e2d\uff0c\u5ba2\u6237\u7aef\u6570\u91cf\u9884\u8ba1\u4e0d\u4f1a\u5f88\u5927\uff0c\u56e0\u4e3a\u591a\u4e2a\u5ba2\u6237\u7aef\u53ef\u80fd\u901a\u8fc7\u5171\u4eab\u5404\u81ea\u7684\u7279\u5f81\u6765\u76f8\u4e92\u5408\u4f5c \u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"409\" height=\"321\" src=\"http:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-41.png\" alt=\"\" class=\"wp-image-805\" srcset=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-41.png 409w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-41-300x235.png 300w\" sizes=\"auto, (max-width: 409px) 100vw, 409px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 \u4e2a\u6027\u5316\u8054\u90a6\u5b66\u4e60<\/h3>\n\n\n\n<p>\u7531\u4e8e\u5ba2\u6237\u4e4b\u95f4\u7684\u5f02\u8d28\u6027\uff0c\u8054\u90a6\u5b66\u4e60\u9762\u4e34\u7740\u4e00\u4e9b\u6311\u6218\u3002 \u6570\u636e\u5f02\u6784\u6027\u662f\u6307\u6bcf\u4e2a\u5ba2\u6237\u7aef\u6301\u6709\u7684\u6570\u636e\u7684\u975e\u72ec\u7acb\u540c\u5206\u5e03\u3002 \u4f7f\u7528 FedAvg \u5728\u975e IID \u6570\u636e\u4e0a\u83b7\u5f97\u7684\u5168\u5c40\u6a21\u578b\u7684\u51c6\u786e\u6027\u4e0d\u8db3\u3002 \u6b64\u5916\uff0c\u8ba1\u7b97\u8d44\u6e90\u3001\u4efb\u52a1\u548c\u6a21\u578b\u7ed3\u6784\u53ef\u80fd\u56e0\u5ba2\u6237\u7aef\u800c\u5f02\uff0c\u8fdb\u4e00\u6b65\u52a0\u5267\u4e86\u5f02\u6784\u6027\u95ee\u9898\u3002 \u4e3a\u4e86\u5e94\u5bf9\u8fd9\u4e00\u6311\u6218\uff0c\u4e2a\u6027\u5316\u8054\u90a6\u5b66\u4e60\uff08PFL\uff09\u88ab\u5f00\u53d1\u4e3a\u4e00\u79cd FL \u65b9\u6cd5\uff0c\u5b83\u8ba4\u8bc6\u5230\u7531\u4e8e\u8fd9\u79cd\u5f02\u6784\u6027\uff0c\u4e3a\u6240\u6709\u5ba2\u6237\u6784\u5efa\u5355\u4e00\u5168\u5c40\u6a21\u578b\u662f\u4e0d\u5207\u5b9e\u9645\u7684\u3002 PFL\u65e8\u5728\u4e3a\u6bcf\u4e2a\u5ba2\u6237\u521b\u5efa\u5355\u72ec\u7684\u6a21\u578b\uff0c\u540c\u65f6\u4ecd\u7136\u53d7\u76ca\u4e8e FL \u7684\u534f\u4f5c\u6027\u8d28\u3002 <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u6a21\u578b\u4e0e\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u4f5c\u8005\u63d0\u51fa\u4e86\u4e00\u79cd\u79f0\u4e3a\u4e2a\u6027\u5316\u5782\u76f4\u8054\u5408\u5b66\u4e60\uff08pvFed\uff09\u7684 VFL \u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u53ef\u4ee5\u89e3\u51b3\u6bcf\u4e2a\u5ba2\u6237\u7684\u5355\u72ec\u4efb\u52a1\u3002 \u5982\u56fe 2 \u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"829\" height=\"265\" src=\"http:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-42.png\" alt=\"\" class=\"wp-image-806\" srcset=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-42.png 829w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-42-300x96.png 300w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-42-768x246.png 768w\" sizes=\"auto, (max-width: 829px) 100vw, 829px\" \/><\/figure>\n\n\n\n<p>pvFed \u7684\u4e3b\u8981\u76ee\u6807\u662f\u6784\u5efa\u4e00\u4e2a\u5168\u5c40\u6a21\u578b\uff0c\u8be5\u6a21\u578b\u751f\u6210\u8f85\u52a9\u8868\u793a\u5411\u91cf\uff0c\u4ee5\u5728\u5ba2\u6237\u4f7f\u7528\u5355\u4e2a\u6a21\u578b\u65f6\u5e2e\u52a9\u63a8\u7406\u3002 \u5728pvFed\u4e2d\uff0c\u5168\u5c40\u6a21\u578b\u4f7f\u7528\u516c\u5171\u6837\u672cID\u4f5c\u4e3a\u8f93\u5165\u6765\u751f\u6210\u8868\u793a\u5411\u91cf\u3002 \u4f20\u7edf\u4e0a\uff0c\u5f53\u5ba2\u6237\u5177\u6709\u4e0d\u540c\u7684\u4efb\u52a1\u548c\u7279\u5f81\u7a7a\u95f4\u65f6\uff0c\u6bcf\u4e2a\u5ba2\u6237\u53ea\u80fd\u4f7f\u7528\u81ea\u5df1\u7684\u6570\u636e\u6765\u8bad\u7ec3\u6a21\u578b\u3002 \u76f8\u6bd4\u4e4b\u4e0b\uff0cpvFed \u4f7f\u5ba2\u6237\u80fd\u591f\u5728\u63a8\u7406\u8fc7\u7a0b\u4e2d\u5229\u7528\u5171\u4eab\u6837\u672c\u4e2d\u7684\u4fe1\u606f\u3002 <\/p>\n\n\n\n<p>\u4e3a\u4e86\u786e\u4fdd\u9690\u79c1\uff0cpvFed\u4ec5\u4ece\u5ba2\u6237\u7aef\u5230\u670d\u52a1\u5668\u5171\u4eab\u5176\u672c\u5730\u7f16\u7801\u5668\uff0c\u4ece\u800c\u4fdd\u62a4\u539f\u59cb\u6570\u636e\u3002 \u901a\u4fe1\u4ec5\u53d1\u751f\u5728\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u4e4b\u95f4\uff0c\u6d88\u9664\u4e86\u5ba2\u6237\u7aef\u4e4b\u95f4\u7684 P2P \u901a\u4fe1\u7684\u9700\u8981\u3002<\/p>\n\n\n\n<p> \u56fe 3 \u8bf4\u660e\u4e86 pvFed \u7684\u8bad\u7ec3\u8fc7\u7a0b\uff0c\u5b83\u96c6\u6210\u4e86\u4e09\u4e2a\u4e0d\u540c\u7684\u795e\u7ecf\u7f51\u7edc (NN)\uff1a\u7279\u5b9a\u4e8e\u5ba2\u6237\u7aef\u7684\u672c\u5730\u6a21\u578b\u3001\u672c\u5730\u7f16\u7801\u5668\u548c\u5168\u5c40\u7f16\u7801\u5668\u3002 \u6bcf\u4e2a\u672c\u5730\u6a21\u578b\u90fd\u662f\u6839\u636e\u5404\u81ea\u5ba2\u6237\u7684\u72ec\u7279\u4efb\u52a1\u91cf\u8eab\u5b9a\u5236\u7684\uff0c\u5305\u62ec\u5b9a\u5236\u7684\u67b6\u6784\u548c\u635f\u5931\u51fd\u6570\u3002 \u672c\u5730\u548c\u5168\u5c40\u7f16\u7801\u5668\u7684\u4efb\u52a1\u662f\u4ece\u6837\u672c ID \u751f\u6210\u8868\u793a\u5411\u91cf\u3002 \u5c40\u90e8\u6a21\u578b\u8bad\u7ec3\u540e\uff0c\u5c40\u90e8\u7f16\u7801\u5668\u4f7f\u7528\u84b8\u998f\u6280\u672f\u8fdb\u884c\u8bad\u7ec3\uff0c\u4ee5\u6a21\u4eff\u8fd9\u4e9b\u6a21\u578b\u7684\u7279\u5f81\u63d0\u53d6\u5c42\u7684\u8f93\u51fa\u3002 \u7ecf\u8fc7\u8bad\u7ec3\u7684\u672c\u5730\u7f16\u7801\u5668\u968f\u540e\u88ab\u4f20\u8f93\u5230\u670d\u52a1\u5668\u4ee5\u8fdb\u884c\u5168\u5c40\u7f16\u7801\u5668\u7684\u8bad\u7ec3\u3002 \u4e0e\u5c40\u90e8\u7f16\u7801\u5668\u7c7b\u4f3c\uff0c\u5168\u5c40\u7f16\u7801\u5668\u5904\u7406\u6837\u672c ID \u4ee5\u751f\u6210\u8868\u793a\u5411\u91cf\u3002 \u5168\u5c40\u7f16\u7801\u5668\u7684\u8bad\u7ec3\u6570\u636e\u662f\u901a\u8fc7\u8fde\u63a5\u548c\u964d\u7ef4\u5c40\u90e8\u7f16\u7801\u5668\u751f\u6210\u7684\u5411\u91cf\u6765\u83b7\u5f97\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"777\" height=\"248\" src=\"http:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-43.png\" alt=\"\" class=\"wp-image-807\" srcset=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-43.png 777w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-43-300x96.png 300w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-43-768x245.png 768w\" sizes=\"auto, (max-width: 777px) 100vw, 777px\" \/><\/figure>\n\n\n\n<p>\u8bad\u7ec3\u597d\u7684\u5168\u5c40\u7f16\u7801\u5668\u5206\u53d1\u7ed9\u5ba2\u6237\u7aef\u5e76\u7528\u4e8e\u5c40\u90e8\u6a21\u578b\u7684\u63a8\u7406\u3002 \u7136\u540e\uff0c\u518d\u6b21\u8bad\u7ec3\u672c\u5730\u7f16\u7801\u5668\u3002 \u8fd9\u5c31\u662f pvFed \u4e2d\u7684\u4e00\u8f6e\uff0c\u91cd\u590d\u8fd9\u4e9b\u8f6e\uff0c\u76f4\u5230\u5ba2\u6237\u7aef\u4efb\u52a1\u7684\u63a8\u7406\u7cbe\u5ea6\u6536\u655b\u3002 \u56fe 4 \u663e\u793a\u4e86 pvFed \u5355\u6b21\u8fed\u4ee3\u7684\u4f2a\u4ee3\u7801\u3002 \u5728\u5168\u5c40\u7f16\u7801\u5668\u7684\u8bad\u7ec3\u5faa\u73af\u4e4b\u524d\uff0c\u6bcf\u4e2a\u5ba2\u6237\u7aef\u4f7f\u7528\u5176\u5355\u72ec\u7684\u672c\u5730\u6570\u636e\u96c6\u72ec\u7acb\u8bad\u7ec3\u5176\u81ea\u5df1\u7684\u672c\u5730\u6a21\u578b\u548c\u7f16\u7801\u5668\u3002 \u672c\u5730\u7f16\u7801\u5668\u7684\u8bad\u7ec3\u662f\u901a\u8fc7\u672c\u5730\u6a21\u578b\u903b\u8f91\u7684\u84b8\u998f\u6765\u5b9e\u73b0\u7684\u3002 \u91c7\u7528\u7684\u635f\u5931\u51fd\u6570\u662f\u6b27\u51e0\u91cc\u5fb7\u8ddd\u79bb\uff0c\u5e38\u7528\u4e8e\u5bf9\u6bd4\u5b66\u4e60 \uff0c\u8fd9\u662f\u4e00\u79cd\u8bad\u7ec3 DNN \u6a21\u578b\u7684\u65b9\u6cd5\uff0c\u5982\u679c\u6a21\u578b\u7684\u8f93\u5165\u76f8\u4f3c\uff0c\u5b83\u4eec\u7684\u4e2d\u95f4\u8868\u793a\u4e5f\u5c06\u76f8\u4f3c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"417\" height=\"467\" src=\"http:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-44.png\" alt=\"\" class=\"wp-image-808\" srcset=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-44.png 417w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-44-268x300.png 268w\" sizes=\"auto, (max-width: 417px) 100vw, 417px\" \/><\/figure>\n\n\n\n<p>\u8bad\u7ec3\u540e\u7684\u672c\u5730\u7f16\u7801\u5668\u88ab\u4f20\u8f93\u5230\u670d\u52a1\u5668\u5e76\u7528\u4e8e\u8bad\u7ec3\u5168\u5c40\u7f16\u7801\u5668\u3002 \u8bad\u7ec3\u5168\u5c40\u7f16\u7801\u5668\u7684\u76ee\u7684\u662f\u6a21\u4eff\u901a\u8fc7\u4f7f\u7528\u6837\u672c ID \u4f5c\u4e3a\u8f93\u5165\u805a\u5408\u672c\u5730\u7f16\u7801\u5668\u7684\u8f93\u51fa\u800c\u83b7\u5f97\u7684\u5411\u91cf\u3002 \u4f5c\u8005\u4e3b\u8981\u91c7\u7528\u4e86\u4e09\u79cd\u57fa\u4e8e\u964d\u7ef4\u7684\u805a\u5408\u65b9\u6cd5\uff1a\u5747\u503c\u805a\u5408\u3001\u81ea\u52a8\u7f16\u7801\u5668\uff08AE\uff09\u805a\u5408\u548c\u4e3b\u6210\u5206\u5206\u6790\uff08PCA\uff09\u805a\u5408\u3002<\/p>\n\n\n\n<p>\u6765\u81ea\u670d\u52a1\u5668\u7684\u7ecf\u8fc7\u8bad\u7ec3\u7684\u5168\u5c40\u7f16\u7801\u5668\u88ab\u5206\u53d1\u5230\u5ba2\u6237\u7aef\u5e76\u7528\u4e8e\u672c\u5730\u6a21\u578b\u7684\u91cd\u65b0\u8bad\u7ec3\u548c\u63a8\u7406\u8fc7\u7a0b\u3002 \u5728\u6b64\u8bbe\u7f6e\u4e2d\uff0c\u5c40\u90e8\u6a21\u578b\u7684\u8f93\u51fa\u5c42\u901a\u8fc7\u5408\u5e76\u5168\u5c40\u7f16\u7801\u5668\u548c\u5c40\u90e8\u6a21\u578b\u7684\u7279\u5f81\u63d0\u53d6\u5668\u7684\u8f93\u51fa\u6765\u751f\u6210\u9884\u6d4b\u3002 \u7531\u4e8e\u8f93\u5165\u5927\u5c0f\u7684\u6539\u53d8\uff0c\u8fd9\u79cd\u5dee\u5f02\u9700\u8981\u91cd\u65b0\u5b9a\u4e49\u8f93\u51fa\u5c42\uff0c\u8fd9\u4e0e\u4ec5\u4f7f\u7528\u672c\u5730\u6a21\u578b\u8fdb\u884c\u8bad\u7ec3\u65f6\u4e0d\u540c\u3002 \u56e0\u6b64\uff0c\u8be5\u8f93\u51fa\u5c42\u88ab\u91cd\u65b0\u5b9a\u4e49\u548c\u91cd\u65b0\u8bad\u7ec3\u3002 \u7136\u800c\uff0c\u7279\u5f81\u63d0\u53d6\u5668\u7ec4\u4ef6\u4fdd\u6301\u4e0d\u53d8\uff0c\u4ee5\u4fdd\u6301\u4e00\u81f4\u6027\u5e76\u9632\u6b62\u6f5c\u5728\u7a7a\u95f4\u7684\u591a\u6837\u5316\uff0c\u8fd9\u53ef\u80fd\u662f\u7531\u4e8e\u6a21\u578b\u521d\u59cb\u53c2\u6570\u503c\u7684\u6539\u53d8\u800c\u5bfc\u81f4\u7684\u3002<\/p>\n\n\n\n<p>pvFed \u4e2d\u7684\u6bcf\u4e00\u8f6e\u90fd\u5305\u542b\u4ece\u672c\u5730\u7f16\u7801\u5668\u805a\u5408\u5230\u5ba2\u6237\u7aef\u91cd\u65b0\u8bad\u7ec3\u7684\u8fc7\u7a0b\u3002 \u5168\u5c40\u7f16\u7801\u5668\u901a\u8fc7\u8fed\u4ee3\u8f6e\u6b21\u8fdb\u884c\u8bad\u7ec3\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u5b9e\u9a8c\u4e0e\u5206\u6790<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">4.1 \u6570\u636e\u96c6\u8bbe\u7f6e<\/h3>\n\n\n\n<p>\u4f5c\u8005\u91c7\u7528\u4e86\u4e24\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u6570\u636e\uff1a\u56fe\u50cf\u548c\u8868\u683c\u6570\u636e\u96c6\u3002\u56fe\u50cf\u6570\u636e\u96c6 FEMNIST\u5305\u542b 805 263 \u4e2a\u624b\u5199\u5b57\u6bcd\u6570\u5b57\u56fe\u50cf\u3002\u6bcf\u4e2a\u56fe\u50cf\u90fd\u4e0e 62 \u4e2a\u5b57\u6bcd\u6570\u5b57\u6807\u7b7e\u548c 3550 \u4e2a\u4f5c\u8005\u6807\u7b7e\u4e4b\u4e00\u76f8\u5173\u8054\u3002\u8868\u683c\u6570\u636e\u96c6\u662f\u4fe1\u7528\u5361\u6b3a\u8bc8\u68c0\u6d4b (CCFD) \u6570\u636e\u96c6\uff0c\u5305\u62ec 2013 \u5e74 9 \u6708\u6b27\u6d32\u6301\u5361\u4eba\u7684 284 807 \u7b14\u4fe1\u7528\u5361\u4ea4\u6613\uff0c\u7531 Worldline \u548c ULB\uff08\u5e03\u9c81\u585e\u5c14\u81ea\u7531\u5927\u5b66\uff09\u673a\u5668\u5b66\u4e60\u5c0f\u7ec4\u63d0\u4f9b\u3002\u00a0CCFD \u6570\u636e\u96c6\u5305\u542b\u6bcf\u7b14\u4ea4\u6613\u7684 28 \u4e2a\u6570\u5b57\u5c5e\u6027\uff0c\u4ee5\u53ca\u6307\u793a\u5176\u6b3a\u8bc8\u72b6\u6001\u7684\u6807\u7b7e\u3002<\/p>\n\n\n\n<p>FEMNIST \u6570\u636e\u96c6\u6309\u5b57\u6bcd\u6570\u5b57\u6807\u7b7e\u5212\u5206\u5e76\u968f\u673a\u5206\u914d\u7ed9 10 \u4e2a\u5ba2\u6237\u7aef\u3002\u56e0\u6b64\uff0c\u6bcf\u4e2a\u5ba2\u6237\u90fd\u4f1a\u6536\u5230\u6765\u81ea\u6240\u6709\u4f5c\u5bb6\u7684\u4e00\u7ec4 6 \u6216 7 \u4e2a\u4e0d\u540c\u7684\u5b57\u6bcd\u6570\u5b57\u56fe\u50cf\u3002\u6bcf\u4e2a\u5ba2\u6237\u7684\u4efb\u52a1\u662f\u5c06\u5206\u914d\u7684\u56fe\u50cf\u5206\u7c7b\u5230\u5404\u81ea\u7684\u5b57\u6bcd\u6570\u5b57\u6807\u7b7e\u4e2d\u3002\u6bcf\u4e2a\u5ba2\u6237\u7aef\u90fd\u6709\u4e0d\u540c\u7c7b\u578b\u7684\u56fe\u50cf\u4f9b\u4f5c\u8005\u4f7f\u7528\uff0c\u56e0\u6b64\u6570\u636e\u96c6\u7684\u5212\u5206\u662f\u5782\u76f4\u7684[30]\uff0c\u5e76\u4e14\u5ba2\u6237\u7aef\u7684\u4efb\u52a1\u5728\u5bf9\u4e0d\u540c\u7c7b\u578b\u7684\u56fe\u50cf\u8fdb\u884c\u5206\u7c7b\u65b9\u9762\u6709\u6240\u4e0d\u540c\u3002<\/p>\n\n\n\n<p> CCFD \u6570\u636e\u96c6\u7684 28 \u4e2a\u7279\u5f81\u968f\u673a\u5206\u914d\u7ed9\u56db\u4e2a\u5ba2\u6237\u7aef\u3002 \u6bcf\u4e2a\u5ba2\u6237\u7684\u4efb\u52a1\u90fd\u662f\u8fdb\u884c\u56de\u5f52\u5206\u6790\uff0c\u5229\u7528\u4ed6\u4eec\u62e5\u6709\u7684\u4e03\u4e2a\u7279\u5f81\u4e2d\u7684\u516d\u4e2a\u4f5c\u4e3a\u89e3\u91ca\u53d8\u91cf\u6765\u9884\u6d4b\u7b2c\u4e03\u4e2a\u7279\u5f81\u3002 \u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u672c\u5b9e\u9a8c\u6ca1\u6709\u4f7f\u7528 CCFD \u6570\u636e\u96c6\u4e2d\u7684\u4ea4\u6613\u6b3a\u8bc8\u6807\u7b7e\u3002 \u7531\u4e8e\u6bcf\u4e2a\u5ba2\u6237\u7aef\u5177\u6709\u4e0d\u540c\u7684\u7279\u5f81\uff0c\u56e0\u6b64\u6570\u636e\u5212\u5206\u662f\u5782\u76f4\u7684\u3002 \u7531\u4e8e\u4ed6\u4eec\u5904\u7406\u7684\u76ee\u6807\u53d8\u91cf\u4e0d\u540c\uff0c\u5206\u914d\u7ed9\u6bcf\u4e2a\u5ba2\u6237\u7684\u4efb\u52a1\u4e5f\u4e0d\u540c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.2 \u7ed3\u679c\u7b80\u6790<\/h3>\n\n\n\n<p>\u8868 I \u5217\u51fa\u4e86\u4f7f\u7528\u4e09\u79cd\u805a\u5408\u65b9\u6cd5\u7684 pvFed \u6307\u6807\u3002 \u4e3a\u4e86\u8fdb\u884c\u6bd4\u8f83\u5206\u6790\uff0c\u8fd8\u63d0\u4f9b\u4e86\u6bcf\u4e2a\u5ba2\u6237\u4ec5\u4f7f\u7528\u81ea\u5df1\u7684\u6570\u636e\u72ec\u7acb\u8bad\u7ec3\u672c\u5730\u6a21\u578b\uff08\u79f0\u4e3a\u672c\u5730\u6700\u4f73\uff09\u7684\u573a\u666f\u7684\u6307\u6807\u3002 pvFed \u5728\u6240\u6709\u5b9e\u9a8c\u4e2d\u7684\u51c6\u786e\u6027\u5747\u8d85\u8fc7\u4e86\u5c40\u90e8\u6700\u4f73\u7ed3\u679c\u3002 \u5728\u8bc4\u4f30\u7684\u805a\u5408\u65b9\u6cd5\u4e2d\uff0cPCA \u805a\u5408\u7684\u51c6\u786e\u6027\u6700\u9ad8\u3002 \u8fd9\u5728 FEMNIST \u6570\u636e\u96c6\u4e2d\u5c24\u5176\u660e\u663e\uff0c\u4e0e\u5176\u4ed6\u65b9\u6cd5\u76f8\u6bd4\uff0c\u57fa\u4e8e PCA \u7684\u964d\u7ef4\u5bf9\u4e8e\u8bad\u7ec3 pvFed \u7684\u5168\u5c40\u7f16\u7801\u5668\u66f4\u6709\u6548\u3002 PCA \u805a\u5408\u7684\u51c6\u786e\u7387\u8fbe\u5230\u4e86 0.9354\uff0c\u800c Local Best \u7684\u51c6\u786e\u7387\u4e3a 0.9150\uff0c\u5c06\u672c\u5730\u6a21\u578b\u7684\u63a8\u7406\u5931\u8d25\u7387\u964d\u4f4e\u4e86 24%\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"413\" height=\"138\" src=\"http:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-45.png\" alt=\"\" class=\"wp-image-809\" srcset=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-45.png 413w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2024\/07\/image-45-300x100.png 300w\" sizes=\"auto, (max-width: 413px) 100vw, 413px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u603b\u7ed3<\/h2>\n\n\n\n<p> \u672c\u6587\u63d0\u51fa\u7684pvFed \u7684\u4e3b\u8981\u76ee\u6807\u662f\u6784\u5efa\u4e00\u4e2a\u80fd\u591f\u751f\u6210\u8868\u793a\u5411\u91cf\u7684\u5168\u5c40\u6a21\u578b\uff0c\u4ee5\u4fc3\u8fdb\u6bcf\u4e2a\u5ba2\u6237\u7aef\u7684\u63a8\u7406\u3002 \u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\uff0cpvFed \u9664\u4e86\u6bcf\u4e2a\u5ba2\u6237\u7aef\u7528\u4e8e\u5176\u7279\u5b9a\u4efb\u52a1\u7684\u672c\u5730\u6a21\u578b\u548c pvFed \u7684\u76ee\u6807\u5168\u5c40\u7f16\u7801\u5668\u4e4b\u5916\uff0c\u8fd8\u91c7\u7528\u4e86\u7b2c\u4e09\u79cd\u6a21\u578b\uff0c\u5373\u672c\u5730\u7f16\u7801\u5668\u3002 \u5229\u7528\u84b8\u998f\u548c\u964d\u7ef4\uff0c\u672c\u5730\u7f16\u7801\u5668\u5c06\u77e5\u8bc6\u4ece\u5ba2\u6237\u7279\u5b9a\u7684\u672c\u5730\u6a21\u578b\u4f20\u8f93\u5230\u5168\u5c40\u7f16\u7801\u5668\u3002<\/p>\n\n\n\n<p> \u7531\u4e8e\u53ea\u6709\u672c\u5730\u7f16\u7801\u5668\u4ece\u5ba2\u6237\u7aef\u5171\u4eab\u5230\u670d\u52a1\u5668\uff0c\u56e0\u6b64\u5ba2\u6237\u7aef\u4fdd\u5b58\u7684\u539f\u59cb\u6570\u636e\u662f\u4fdd\u5bc6\u7684\u3002 \u5168\u5c40\u7f16\u7801\u5668\u8f93\u51fa\u7684\u5411\u91cf\u5bf9\u4e8e\u6837\u672c\u6765\u8bf4\u662f\u72ec\u7279\u7684\uff0c\u5e76\u4e14\u88ab\u8bbe\u8ba1\u4e3a\u72ec\u7acb\u4e8e\u4efb\u4f55\u5ba2\u6237\u7aef\u7684\u7279\u5b9a\u4efb\u52a1\uff0c\u4ece\u800c\u4f7f\u5176\u80fd\u591f\u666e\u904d\u9002\u7528\u4e8e\u6240\u6709\u5ba2\u6237\u7aef\u3002 <\/p>\n\n\n\n<p>\u901a\u8fc7\u5728\u5782\u76f4\u6570\u636e\u5206\u533a\u4e0b\u5bf9\u4e24\u79cd\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b\uff08\u56fe\u50cf\u548c\u8868\u683c\u6570\u636e\u96c6\uff09\u7684\u7814\u7a76\u4e0e\u5206\u6790\uff0c \u8bc1\u660e\u4e86 pvFed \u4e2d\u5168\u5c40\u6a21\u578b\u751f\u6210\u7684\u8868\u793a\u5411\u91cf\u5bf9\u4e8e\u5ba2\u6237\u7aef\u63a8\u7406\u7684\u6709\u6548\u6027\u3002 \u6b64\u5916\uff0cpvFed \u8bc1\u660e\u4e86\u5ba2\u6237\u63a8\u65ad\u7684\u51c6\u786e\u6027\u66f4\u9ad8\uff0c\u5373\u4f7f\u5728\u67d0\u4e9b\u5ba2\u6237\u5173\u4e8e\u63a8\u65ad\u6837\u672c\u7684\u6570\u636e\u4e0d\u8db3\u7684\u60c5\u51b5\u4e0b\u4e5f\u662f\u5982\u6b64\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u8005\uff1aAkihito Nishikawa, Yuiko Sakuma, Yuma Okuda, Hiroaki [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-798","post","type-post","status-publish","format-standard","hentry","category-events"],"_links":{"self":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts\/798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/comments?post=798"}],"version-history":[{"count":7,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts\/798\/revisions"}],"predecessor-version":[{"id":935,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/posts\/798\/revisions\/935"}],"wp:attachment":[{"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/media?parent=798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/categories?post=798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.15zhi.net\/blog\/wp-json\/wp\/v2\/tags?post=798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}