{"id":5029,"date":"2024-10-01T22:01:01","date_gmt":"2024-10-01T14:01:01","guid":{"rendered":""},"modified":"2024-10-01T22:01:01","modified_gmt":"2024-10-01T14:01:01","slug":"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def","status":"publish","type":"post","link":"https:\/\/mushiming.com\/5029.html","title":{"rendered":"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def"},"content":{"rendered":"<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display: none;\"> \n <path stroke-linecap=\"round\" d=\"M5,0 0,2.5 5,5z\" id=\"raphael-marker-block\" style=\"-webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"><\/path> \n<\/svg> <\/p>\n<h2>\u5b66\u4e60\u8bb0\u5f55<\/h2>\n<h3>\u4e00\u3001\u673a\u5668\u5b66\u4e60<\/h3>\n<p>\u30107.19\u30116.1\u4ee3\u4ef7\u51fd\u6570<br \/> 6.2\u51b3\u7b56\u8fb9\u754c<br \/> \u30107.20\u30118.1\u795e\u7ecf\u7f51\u7edc<br \/> 8.2\u6a21\u578b\u8868\u793a<br \/> 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title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c3\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \uff08\u5728\u6c42\u6700\u5927\u503c\u7684\u65f6\u5019\u7070\u8272\u90e8\u5206\u662f\u53ef\u4ee5\u5ffd\u7565\u7684\u3002\u7279\u522b\u662fP(xi)\uff0c\u8fd9\u662f\u56e0\u4e3a\u6211\u4eec\u9ed8\u8ba4\u6570\u636e\u96c6\u662f\u4f18\u8d28\u7684\u6570\u636e\u96c6\uff0c\u6570\u636e\u96c6\u91cc\u7684\u56fe\u7247\u90fd\u662f\u76f8\u4e92\u72ec\u7acb\u7684\uff0c\u800c\u4e14\u5e94\u8be5\u662f\u7b49\u6982\u7387\u7684\u3002\u5982\u679c\u8fd9\u90e8\u5206\u6709\u95ee\u9898\uff0c\u90a3\u5c31\u9700\u8981\u91cd\u65b0\u6574\u7406\u6570\u636e\u96c6\uff0c\u8ba9\u6570\u636e\u96c6\u5c3d\u53ef\u80fd\u6ee1\u8db3\u8fd9\u4e2a\u6761\u4ef6\u3002 \uff09<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/278e1cf2f92b4ad0bae4f9116bf3e0b4.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c4\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c4\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u6298\u9875\u635f\u5931\u51fd\u6570\uff1a<br \/> \u60e9\u7f5a\u2013&gt;\u4e0e\u6b63\u786e\u5206\u7c7b\u5f97\u5206\u76f8\u5dee\u503c\u5c0f\u4e8e\u25b3\u7684\u4e00\u9879<br \/> \u5bf9\u4e8e\u76f8\u540c\u5f97\u5206\u7684\u4e24\u5957\u6743\u91cd\uff0c\u91c7\u7528\u5965\u5361\u59c6\u5243\u5200\u539f\u7406\uff08\u5982\u65e0\u5fc5\u8981\uff0c\u52ff\u589e\u5b9e\u4f53\uff09\uff0c\u9009\u62e9\u76f8\u5bf9\u8f83\u7b80\u5355\u7684\u4e00\u5957\u6743\u91cd\u3002<\/p>\n<p><strong>\u4ea4\u53c9\u71b5\u8bef\u5dee<\/strong>\uff1a<br \/> \u30102023.06.11\u3011<br \/> \u8981\u60f3\u6bd4\u8f83\u4e24\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u5206\u5e03\u5c31\u9700\u8981\u5f15\u5165\u71b5\u7684\u6982\u5ff5\u3002<br \/> <strong>\uff081\uff09\u71b5=\u4fe1\u606f\u91cf\u3002<\/strong><br \/> 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\u9999\u519c\u71b5\uff08\u4e5f\u662f\u71b5\u4e5f\u662f\u4fe1\u606f\u71b5\uff09\uff1a\u9999\u519c\u71b5\u5c31\u662f\u4ee3\u8868\u4e86\u4e8b\u4ef6\u53d1\u751f\u7684\u4e0d\u786e\u5b9a\u6027\uff0c\u4e0d\u786e\u5b9a\u6027\u8d8a\u5927\uff0c\u9999\u519c\u71b5\u8d8a\u5927\uff0c\u4e0d\u786e\u5b9a\u6027\u8d8a\u5c0f\uff0c\u9999\u519c\u71b5\u8d8a\u5c0f\u3002<br \/> \u71b5\uff1a=\u6574\u4e2a\u7cfb\u7edf\u7684\u5404\u9879\u6982\u7387\u4e58\u4ee5\u5bf9\u5e94\u7684\u71b5\u76f8\u52a0\uff0c\u516c\u5f0f\u4e3a\uff1a<img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/fa88408af1b944dba5a08f8059517b1d.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c6\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c6\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\u71b5\u5230\u5e95\u662f\u4ec0\u4e48\u4e86\u3002\u6211\u4eec\u6700\u5f00\u59cb\u7684\u76ee\u7684\u662f\u4ec0\u4e48\uff1f\u662f\u6bd4\u8f83\u4e24\u4e2a\u6982\u7387\u5206\u5e03\uff0c\u4e00\u4e2a\u8868\u793a\u771f\u5b9e\u7684\u89c4\u5f8b\uff0c\u4e00\u4e2a\u8868\u793a\u673a\u5668\u5b66\u4e60\u731c\u6d4b\u7684\u89c4\u5f8b\uff0c\u770b\u770b\u4e24\u4e2a\u6982\u7387\u5206\u5e03\u5b83\u4eec\u76f8\u5dee\u6709\u591a\u5c11\u3002<br \/> \u73b0\u5728\u6709\u4e86\u71b5\uff0c\u6211\u4eec\u662f\u4e0d\u662f\u5c31\u53ef\u4ee5\u76f4\u63a5\u6bd4\u8f83\u4e24\u4e2a\u6982\u7387\u5206\u5e03\u7684\u5dee\u8ddd\u4e86\u5462\uff1f\u628a\u4e24\u4e2a\u6982\u7387\u5206\u5e03\u7684\u71b5\u90fd\u7b97\u51fa\u6765\uff0c\u7136\u540e\u770b\u770b\u76f8\u5dee\u591a\u5c11\u3002<br \/> \u54ea\u6709\u8fd9\u4e48\u7b80\u5355\uff0c\u522b\u5fd8\u4e86\uff0c\u771f\u5b9e\u89c4\u5f8b\u6211\u4eec\u662f\u4e0d\u77e5\u9053\u7684\uff0c\u65e2\u7136\u4e0d\u77e5\u9053\uff0c\u90a3\u5b83\u7684\u71b5\u8fd8\u600e\u4e48\u6c42\u5462\uff1f\u6ca1\u6709\u529e\u6cd5\u3002<br \/> \u90a3\u4e48\u6709\u6ca1\u6709\u4ec0\u4e48\u65b9\u6cd5\uff0c\u5373\u4fbf\u4e0d\u77e5\u9053\u4e00\u4e2a\u6982\u7387\u5206\u5e03\u7684\u71b5\u5177\u4f53\u662f\u591a\u5c11\uff0c\u4e5f\u80fd\u77e5\u9053\u4e24\u4e2a\u6982\u7387\u5206\u5e03\u4e4b\u95f4\u7684\u5dee\u8ddd\u662f\u591a\u5c11\u5462\uff1f<br \/> \u6709\uff01\u8fd9\u5c31\u662fKL\u6563\u5ea6\u548c\u4ea4\u53c9\u71b5\u4e86\u3002<br \/> <strong>\uff082\uff09KL\u6563\u5ea6\uff08\u76f8\u5bf9\u71b5\uff09<\/strong><br \/> \u76f8\u5bf9\u71b5\u662f\u975e\u8d1f\u7684\uff0c\u5b83\u7684\u5927\u5c0f\u53ef\u4ee5\u7528\u6765\u8861\u91cf\u4e24\u4e2a\u5206\u5e03\u4e4b\u95f4\u7684\u5dee\u5f02\uff0cKL\u6563\u5ea6\u5c31\u4e0d\u662f\u7c97\u66b4\u7684\u6bd4\u8f83\u4e00\u4e2a\u603b\u4f53\u7684\u71b5\u4e86\uff0c\u800c\u662f\u6bd4\u8f83\u5f97\u66f4\u7ec6\u81f4\uff0c\u6bcf\u4e00\u4e2a\u4e8b\u4ef6xi\u5bf9\u5e94\u7684\u4fe1\u606f\u91cf\uff0c\u90fd\u4f1a\u62ff\u6765\u8fdb\u884c\u6bd4\u8f83\u3002\u5982\u679c\u6bcf\u4e00\u4e2a\u4e8b\u4ef6\u7684\u4fe1\u606f\u91cf\u90fd\u662f\u76f8\u540c\u7684\uff0c\u90a3\u4e48\u4e24\u4e2a\u6982\u7387\u5206\u5e03\u80af\u5b9a\u5c31\u662f\u76f8\u540c\u7684\u4e86\u3002<br \/> \u4e8e\u662fKL\u6563\u5ea6\u5c31\u53ef\u4ee5\u505a\u51fa\u5982\u4e0b\u5b9a\u4e49\uff1a<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/654a61aeda6e4647afd7db2882c640bf.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c7\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c7\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u5f53\u4e14\u4ec5\u5f53S\u548cO\u5177\u6709\u5b8c\u5168\u76f8\u540c\u7684\u5206\u5e03\u65f6\uff0c\u76f8\u5bf9\u71b5\u53d6\u503c\u4e3a0\u3002<br \/> \u8868\u793a\u4e24\u4e2a\u6982\u7387\u5206\u5e03\u7684\u8ddd\u79bb\uff0c\u503c\u8d8a\u5c0f\uff0c\u5206\u5e03\u8d8a\u8fd1\u3002<br \/> \u53ef\u4ee5\u901a\u8fc7\u6700\u5c0f\u5316\u76f8\u5bf9\u71b5\u6765\u7528\u5206\u5e03Q\u903c\u8fd1\u5206\u5e03P(\u76ee\u6807\u6982\u7387\u5206\u5e03)<br \/> (log\u9664\u53d8\u51cf\u2013&gt;\u53f3\u8fb9\u662f\u786e\u5b9a\u7684\u9999\u519c\u71b5+\u5de6\u8fb9\u4ea4\u53c9\u71b5\u2013&gt;\u6700\u4f18\u5316\u4ea4\u53c9\u71b5\u53ef\u5f97\u5230\u6700\u5c0f\u7684\u635f\u5931)<br \/> <strong>\uff083\uff09\u4ea4\u53c9\u71b5\uff1a<\/strong><br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/bc365a01fdc74c07a5149103fa149a56.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c8\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c8\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/3a7f85b5ce7943f69ad23ccee4e8c2ee.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c9\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c9\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u795e\u7ecf\u7f51\u7edc\u5e94\u7528\uff1a<br \/> \u5047\u8bbe\u6211\u4eec\u9700\u8981\u5bf9\u6570\u5b571\uff0c2\uff0c3\u8fdb\u884c\u5206\u7c7b\uff0c\u5b83\u4eec\u7684label\u4f9d\u6b21\u4e3a\uff1a<br \/> [1,0,0]\uff0c [0,1,0]\uff0c [0,0,1]<br \/> \u5f53\u8f93\u5165\u7684\u56fe\u50cf\u4e3a\u6570\u5b571\u65f6\uff0c\u5b83\u7684\u8f93\u51fa\u548clabel\u4e3a\uff1a<br \/> [0.3,0.4,0.3] , [1,0,0]<br \/> \u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u53ef\u4ee5\u5229\u7528\u4ea4\u53c9\u71b5\u8ba1\u7b97\u7f51\u7edc\u7684\u635f\u5931<img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/37426c4d49c5484589734b14bc9f4639.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c10\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c10\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u968f\u7740\u8bad\u7ec3\u6b21\u6570\u7684\u589e\u52a0\uff0c\u6a21\u578b\u7684\u53c2\u6570\u5f97\u5230\u4f18\u5316\uff0c\u8fd9\u65f6\u7684\u8f93\u51fa\u53d8\u4e3a\uff1a[0.8,0.1,0.1]<br \/> \u5219 <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/653dfc18270944c79e0dda7bbe951733.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c11\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c11\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u53ef\u4ee5\u53d1\u73b0loss\u75311.20\u51cf\u5c0f\u4e3a0.22\uff0c\u800c\u5224\u65ad\u8f93\u5165\u56fe\u50cf\u4e3a\u6570\u5b571\u7684\u6982\u7387\u7531\u539f\u672c\u76840.3\u589e\u52a0\u4e3a0.8\uff0c\u8bf4\u660e\u8bad\u7ec3\u5f97\u5230\u7684\u6982\u7387\u5206\u5e03\u8d8a\u6765\u8d8a\u63a5\u8fd1\u771f\u5b9e\u7684\u5206\u5e03\uff0c\u8fd9\u6837\u5c31\u5927\u5927\u7684\u63d0\u9ad8\u4e86\u9884\u6d4b\u7684\u51c6\u786e\u6027\u3002<br \/> \u301010.26\u3011<\/p>\n<h5>\u6b63\u5219\u5316\uff1a<\/h5>\n<p>\u5728\u6211\u4eec\u4f7f\u5f97\u7ecf\u9a8c\u98ce\u9669\u6700\u5c0f\u5316\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u4f7f\u5f97\u6a21\u578b\u53d8\u5f97\u7279\u522b\u590d\u6742\uff0c\u4e5f\u5c31\u4ea7\u751f\u4e86\u8fc7\u62df\u5408\u3002<br \/> \u4e3a\u4e86\u9632\u6b62\u6a21\u578b\u8fc7\u62df\u5408\uff0c\u7528\u4e00\u4e2a\u6b63\u5219\u5316\u6765\u60e9\u7f5a\u62df\u5408\u66f2\u7ebf\u7684\u9ad8\u6b21\u9879\uff0c\u8fd9\u65f6\u5c06\u7ecf\u9a8c\u98ce\u9669\u6700\u5c0f\u5316\u53d8\u6210\u4e86\u6c42\u5f97\u7ed3\u6784\u98ce\u9669\u6700\u5c0f\u5316\u3002<br \/> \u51e1\u662f\u53ef\u4ee5\u51cf\u5c11\u8fc7\u62df\u5408\u7684\u90fd\u53eb\u6b63\u5219\u5316\uff0c\u6b63\u5219\u5316\u6709\u7ea6\u675fW\u548c\u7f51\u7edc\u7684dropout\u3002<\/p>\n<p>\u901a\u8fc7\u6b63\u5219\u9879\u6765\u89c4\u5b9a\u9650\u5236w\u7684\u89e3\u7a7a\u95f4\u53ea\u80fd\u4eceL1\u6b63\u65b9\u5f62\u548cL2\u5706\u5f62\u7ea6\u675f\u4e2d\u5bfb\u627e\u3002<br \/> 1\u6b63\u5219\u5316\uff1a<br \/> \u5177\u6709\u7a00\u758f\u6027\uff0c\u53ef\u4ee5\u4f7f\u5f97\u5f88\u591a\u53c2\u6570\u4e3a0\uff0c\u8fd9\u4e5f\u662f\u4e00\u4e2a\u7279\u5f81\u9009\u62e9\u7684\u8fc7\u7a0b\u3002<br \/> \u6c42\u89e3\u65f6\uff0c\u6b63\u65b9\u5f62\u4e0e\u89e3\u7a7a\u95f4\u7684\u4ea4\u70b9\u5927\u6982\u7387\u51fa\u73b0\u5728\u9876\u70b9\uff0c\u800c\u4e8c\u7ef4\u9876\u70b9\u65f6w1\uff0cw2\u81f3\u5c11\u5176\u4e2d\u4e00\u4e2a\u4e3a0\u3002<br \/> L2\u6b63\u5219\u5316\uff1a<br \/> \u6c42\u89e3\u65f6\uff0c\u5706\u5f62\u4e0e\u89e3\u7a7a\u95f4\u7684\u4ea4\u70b9\u5927\u6982\u7387\u51fa\u73b0\u5728\u5706\u5f27\u4e0a\uff0c\u800c\u5706\u5f27\u4e00\u822c\u4e0d\u4e3a0\u3002<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/6db2c1c503f14a54838f99a737e057db.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c12\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c12\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<p>\u7406\u89e3\uff1a<br \/> 1.\u62c9\u683c\u6717\u65e5\u4e58\u6570\u6cd5\u7406\u89e3<br \/> \u5728\u8bad\u7ec3\u7f51\u7edc\u6c42\u89e3\u7f51\u7edc\u6700\u5c0f\u503c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u76f8\u540c\u7ed3\u679c\u4e0b\u4f1a\u5f97\u5230\u4e0d\u540c\u7684a*\u500dw\u503c\uff1b\u5728\u9884\u6d4b\u65f6\u5982\u679cw\u8fc7\u5927\u7684\u8bdd\u4f1a\u4f7f\u5f97\u7ed3\u679c\u4ea7\u751f\u504f\u5dee\uff0c\u56e0\u6b64\u6211\u4eec\u5728\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\u9700\u8981\u4eba\u4e3a\u7684\u901a\u8fc7\u62c9\u683c\u6717\u65e5\u4e58\u6570\u6cd5\u7ed9w\u5212\u5b9a\u4e00\u4e2a\u53ef\u884c\u57df\u3002<br \/> 2.\u4ece\u6743\u91cd\u8870\u51cf\u7406\u89e3<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/c7ea0391ace84b0e8cff2fe968779f2e.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c13\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c13\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/ea87853293c94969b88be1145ffc535e.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c14\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c14\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u795e\u7ecf\u7f51\u7edc\u62df\u5408\u51fa\u6765\u7684\u51fd\u6570\u662ff(x)\u53ef\u4ee5\u901a\u8fc7\u6cf0\u52d2\u5c55\u5f00\uff0c\u901a\u8fc7\u8ba9w\u8d8a\u6765\u8d8a\u5c0f\u9ad8\u6b21\u9879\u4f1a\u8d8a\u6765\u8d8a\u5c0f\uff0c\u6240\u4ee5\u60e9\u7f5a\u4e86\u9ad8\u6b21\u9879\u4ece\u800c\u8ba9\u66f2\u7ebf\u6ca1\u6709\u90a3\u4e48\u591a\u5f2f\u5f2f\u7ed5\u7ed5\u3002<\/p>\n<h5>\u6fc0\u6d3b\u51fd\u6570\u301011.4\u3011<\/h5>\n<p>\u30102023.6.13\u3011<br \/> \u6fc0\u6d3b\u51fd\u6570\u7684\u53d1\u5c55\u7ecf\u5386\u4e86Sigmoid -&gt; Tanh -&gt; ReLU -&gt; Leaky ReLU -&gt; Maxout\u8fd9\u6837\u7684\u8fc7\u7a0b\uff0c\u8fd8\u6709\u4e00\u4e2a\u7279\u6b8a\u7684\u6fc0\u6d3b\u51fd\u6570Softmax\uff0c\u56e0\u4e3a\u5b83\u53ea\u4f1a\u88ab\u7528\u5728\u7f51\u7edc\u4e2d\u7684\u6700\u540e\u4e00\u5c42\uff0c\u7528\u6765\u8fdb\u884c\u6700\u540e\u7684\u5206\u7c7b\u548c\u5f52\u4e00\u5316\u3002<br \/> 1\u3001\u91c7\u7528sigmoid\u7b49\u51fd\u6570\uff0c\u6307\u6570\u8fd0\u7b97\uff0c\u8ba1\u7b97\u91cf\u5927\uff1b<br \/> \u53cd\u5411\u4f20\u64ad\u6c42\u8bef\u5dee\u68af\u5ea6\u65f6\uff0c\u6c42\u5bfc\u6d89\u53ca\u9664\u6cd5\u548c\u6307\u6570\u8fd0\u7b97\uff0c\u8ba1\u7b97\u91cf\u76f8\u5bf9\u5927\uff0c\u800c\u91c7\u7528Relu\u6fc0\u6d3b\u51fd\u6570\uff0c\u6574\u4e2a\u8fc7\u7a0b\u7684\u8ba1\u7b97\u91cf\u8282\u7701\u5f88\u591a\u3002<br \/> Sigmoid\u51fd\u6570\u9971\u548c\u4f7f\u68af\u5ea6\u6d88\u5931\u3002\u5f53\u795e\u7ecf\u5143\u7684\u6fc0\u6d3b\u5728\u63a5\u8fd10\u62161\u5904\u65f6\u4f1a\u9971\u548c\uff0c\u5728\u8fd9\u4e9b\u533a\u57df\u68af\u5ea6\u51e0\u4e4e\u4e3a0\uff0c\u8fd9\u5c31\u4f1a\u5bfc\u81f4\u68af\u5ea6\u6d88\u5931\uff0c\u51e0\u4e4e\u5c31\u6709\u6ca1\u6709\u4fe1\u53f7\u901a\u8fc7\u795e\u7ecf\u4f20\u56de\u4e0a\u4e00\u5c42\u3002<br \/> 2\u3001\u5bf9\u4e8e\u6df1\u5c42\u7f51\u7edc\uff0csigmoid\u51fd\u6570\u53cd\u5411\u4f20\u64ad\u65f6\uff0c\u5f88\u5bb9\u6613\u5c31\u4f1a\u51fa\u73b0\u68af\u5ea6\u6d88\u5931\u7684\u60c5\u51b5\uff08\u5728sigmoid\u63a5\u8fd1\u9971\u548c\u533a\u65f6\uff0c\u53d8\u6362\u592a\u7f13\u6162\uff0c\u5bfc\u6570\u8d8b\u4e8e0\uff0c\u8fd9\u79cd\u60c5\u51b5\u4f1a\u9020\u6210\u4fe1\u606f\u4e22\u5931\u3002\uff09\uff0c\u8fd9\u79cd\u73b0\u8c61\u79f0\u4e3a\u9971\u548c\uff0c\u4ece\u800c\u65e0\u6cd5\u5b8c\u6210\u6df1\u5c42\u7f51\u7edc\u7684\u8bad\u7ec3\u3002<br \/> \u800cReLU\u5c31\u4e0d\u4f1a\u6709\u9971\u548c\u503e\u5411\uff0c\u4e0d\u4f1a\u6709\u7279\u522b\u5c0f\u7684\u68af\u5ea6\u51fa\u73b0\u3002<br \/> \u6b7b\u533a\uff1a\u653e\u5165\u4e00\u4e2a\u5c0f\u781d\u7801\u5728\u79e4\u4e0a\uff0c\u663e\u793a\u5668\u6ca1\u6709\u52a8\u4f5c\uff0c\u8bf4\u660e\u8fd9\u4e2a\u781d\u7801\u5728\u79e4\u7684\u6b7b\u533a<br \/> \u9971\u548c\uff1a\u8f93\u5165\u5230\u8fbe\u4e00\u5b9a\u7a0b\u5ea6\u540e\u53d8\u5316\u4e0d\u592a\u660e\u663e<br \/> sigmiod\u5b58\u5728\u8f93\u5165\u4e3a\u975e\u96f6\u4e2d\u5fc3\uff0c\u5e76\u4e14\u4f7f\u7528\u4e86 s \u5f62\u7ed3\u6784\uff0c\u56e0\u6b64\uff0c\u6240\u6709\u7684\u68af\u5ea6\u66f4\u65b0\u8981\u4e48\u5168\u90e8\u4e3a\u6b63\uff0c\u8981\u4e48\u5168\u90e8\u4e3a\u8d1f\uff0c\u4f7f\u5f97\u6743\u91cd\u5411\u540c\u4e00\u4e2a\u65b9\u5411\u79fb\u52a8\u8fd9\u5bfc\u81f4\u68af\u5ea6\u66f4\u65b0\u5448\u73b0\u201c\u4e4b\u5b57\u5f62\u201d\u8def\u5f84\uff0c\u8fd9\u6bd4\u76f4\u63a5\u9075\u5faa\u6700\u4f73\u65b9\u5411\u7684\u66f4\u65b0\u6548\u7387\u4f4e:<br \/> relu\u5b58\u5728\u6b7b\u533a\u95ee\u9898\u53ef\u4ee5\u901a\u8fc7\u53d8\u4f53\u89e3\u51b3<br \/> \u301011.15\u3011<br \/> \u5377\u79ef\u8fc7\u7a0b\u4e2d\u6709\u591a\u5c11\u5377\u79ef\u6838\u5c31\u6709\u591a\u5c11\u7279\u5f81\u56fe\uff0c\u4e5f\u5c31\u662f\u901a\u9053\u6570<br \/> \u6b63\u662f\u56e0\u4e3a\u6c60\u5316\u64cd\u4f5c\u4f7f\u5f97\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u62e5\u6709\u5e73\u79fb\u4e0d\u53d8\u6027<br \/> \u6743\u503c\u5171\u4eab\u662f\u6bcf\u4e2a\u5377\u79ef\u6838\u5171\u4eab<br \/> \u5e95\u5c42\u5377\u79ef\u6838\u5173\u6ce8 \u8fb9\u7f18 \u989c\u8272 \u4eae\u5ea6<br \/> \u4e2d\u5c42\u5377\u79ef\u6838\u5173\u6ce8 \u5f62\u72b6<br \/> \u9ad8\u5c42\u5377\u79ef\u6838\u5173\u6ce8 \u773c\u775b \u5934\u53d1\u7279\u5f81<br \/> \u5982\u679c\u6b65\u957f\u4e3a1\u4f7f\u8f93\u5165\u8f93\u51fa\u957f\u5bbd\u4e0d\u53d8 \u6709P = F-1 \/2<br \/> \u591a\u5c11\u4e2a1*1\u5377\u79ef\u6838\u4ee3\u8868\u7740\u751f\u6210\u591a\u5c11\u901a\u9053\uff0c\u6bcf\u4e00\u5c42\u90fd\u9700\u8981\u975e\u7ebf\u6027\u7684\u6fc0\u6d3b\u53ef\u4ee5\u63d0\u9ad8\u975e\u7ebf\u6027\u8868\u793a\u80fd\u529b<\/p>\n<h5>\u68af\u5ea6\u4e0b\u964d<\/h5>\n<p>\u4f18\u5316\uff1a<br \/> \u968f\u673a\u65b9\u6cd5\uff1a\u7c7b\u4f3c\u4e8e\u7f8a\u9a7c\u6295\u8d44\u6cd5\uff0c\u968f\u673a\u731c<br \/> \u68af\u5ea6\u4e0b\u964d\u6cd5\uff1a\u6c42\u5f97\u635f\u5931\u51fd\u6570\u5bf9\u4e8e\u539f\u59cb\u6570\u636e\u7684\u6bcf\u4e00\u4e2a\u6743\u91cd\u7684\u68af\u5ea6\uff0c\u6309\u7167\u53cd\u65b9\u5411\u4e58\u4ee5\u5b66\u4e60\u7387\u66f4\u65b0\u6743\u91cd\u4f7f\u5f97\u635f\u5931\u51fd\u6570\u4e0b\u964d<br \/> \u2460\u6570\u503c\u68af\u5ea6\u89e3\u6cd5\uff1a\u7ed9\u6bcf\u4e2a\u6743\u91cd\u52a0\u4e0a\u4e00\u4e2a\u5c0f\u503c\uff0c\u6c42\u5f97\u6bcf\u4e2a\u6743\u91cd\u7684\u68af\u5ea6\uff08\u662f\u8fd1\u4f3c\u89e3\uff09\u3002<br \/> \u2461\u89e3\u6790\u89e3\uff1a\u725b\u987f\u83b1\u5e03\u5c3c\u8328<br \/> \u5206\u7c7b\uff1a<br \/> \u5168\u68af\u5ea6\u4e0b\u964d<br \/> \u968f\u673a\u68af\u5ea6\u4e0b\u964d<br \/> \u5c0f\u6279\u91cf\u68af\u5ea6\u4e0b\u964d<br \/> \u6df1\u5ea6\u5b66\u4e60\u4f7f\u5f97\u4eba\u5de5\u7279\u5f81\u5de5\u7a0b\u5f97\u4ee5\u89e3\u653e<br \/> \u301011.1\u3011\u53cd\u5411\u4f20\u64ad:<br \/> \u5229\u7528\u94fe\u5f0f\u6cd5\u5219\u5148\u6c42\u51fa\u540e\u9762\u90e8\u5206\u7684\u5c40\u90e8\u68af\u5ea6,\u7136\u540e\u76f8\u4e58\u53ef\u4ee5\u7684\u5f97\u5230\u5173\u4e8e\u8f93\u5165\u7684\u5168\u5c40\u68af\u5ea6<br \/> +\u5206\u652f \u5e73\u5206\u5c40\u90e8\u68af\u5ea6<br \/> *\u5206\u652f \u4ea4\u6362\u5c40\u90e8\u68af\u5ea6<br \/> \u524d\u5411\u4f20\u64ad\u4e3a\u4e86\u6c42\u635f\u5931<br \/> \u53cd\u5411\u4f20\u64ad\u6c42\u68af\u5ea6<br \/> \u9690\u85cf\u5c42\u662f\u4e3a\u4e86\u628a\u975e\u7ebf\u6027\u7684\u6570\u636e\u5904\u7406\u6210\u7ebf\u6027\u7684,\u7136\u540e\u4f7f\u7528\u7ebf\u6027\u5c42\u53bb\u5206\u7c7b<br \/> \u51e0\u4e2a\u795e\u7ecf\u5143\u5c31\u76f8\u5f53\u4e8e\u51e0\u6761\u7ebf\u6027\u8fb9\u754c\u548c\u505a\u4e86\u51e0\u6b21\u975e\u7ebf\u6027\u53d8\u6362<br \/> \u6700\u5c11\u4f7f\u75283\u4e2a\u795e\u7ecf\u5143<br \/> relu\u7684\u8fb9\u754c\u4e3a\u660e\u663e\u7684\u76f4\u7ebf\uff0c\u4e0d\u662f\u5706\u6ed1\u66f2\u7ebf<\/p>\n<h5>\u68af\u5ea6\u4e0b\u964d\u4f18\u5316<\/h5>\n<p>\u30102023.06.10\u3011<br \/> \u68af\u5ea6\u4e0b\u964d\uff08Gradient Descent GD\uff09\u7b80\u5355\u6765\u8bf4\u5c31\u662f\u4e00\u79cd\u5bfb\u627e\u76ee\u6807\u51fd\u6570\u6700\u5c0f\u5316\u7684\u65b9\u6cd5\uff0c\u5b83\u5229\u7528\u68af\u5ea6\u4fe1\u606f\uff0c\u901a\u8fc7\u4e0d\u65ad\u8fed\u4ee3\u8c03\u6574\u53c2\u6570\u6765\u5bfb\u627e\u5408\u9002\u7684\u76ee\u6807\u503c\u3002<br \/> https:\/\/zhuanlan.zhihu.com\/p\/<\/p>\n<p>\u30102021.11.18\u3011<br \/> \u968f\u673a\u68af\u5ea6\u4e0b\u964dSGD:\u4e5f\u5c31\u662fmini-batch \u4f7f\u7528\u4e00\u5c0f\u6279\u6b21\u6570\u636e\u66f4\u65b0\u635f\u5931<br \/> \u5177\u4f53\u505a\u6cd5\u662f\u5728\u68af\u5ea6\u8f83\u5927\u7684\u65b9\u5411\u53d1\u751f\u9707\u8361\uff0c\u4e0d\u80fd\u901a\u8fc7\u5355\u7eaf\u51cf\u5c0f\u5b66\u4e60\u7387\u89e3\u51b3<br \/> \u5bb9\u6613\u9677\u5165\u5c40\u90e8\u6700\u4f18\u70b9\u548c\u978d\u70b9<br \/> SGD+Momentum\uff1a\u76f8\u5f53\u4e8e\u5927\u80d6\u5b50\u4e0b\u5c71\uff0c\u5e26\u6709\u52a8\u91cf\uff0c\u8003\u8651\u5230\u4e4b\u524d\u7684\u4e0b\u964d\u65b9\u5411<br \/> \u6539\u8fdb\u7684Nesterov Momentum :\u5047\u8bbe\u6309\u7167\u4e4b\u524d\u68af\u5ea6\u4e0b\u964d\u65b9\u5411\u66f4\u65b0\u540e\u770b\u662f\u5426\u68af\u5ea6\u5e73\u7f13<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/381d7c5a5c194b6fa8f99bb808e81c3b.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c15\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c15\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> AdaGrad:<br \/> SGD\u5728\u68af\u5ea6\u8f83\u5927\u7684\u65b9\u5411\u51fa\u73b0\u4e86\u95ee\u9898\uff0c\u6240\u4ee5\u7ed9\u5b83\u52a0\u4e00\u4e2a\u9664\u4ee5\u6839\u53f7\u4e0b\u7d2f\u52a0\u7684dx<em>dx\u60e9\u7f5a\u9879<br \/> RMSProp:<br \/> \u628a\u7d2f\u52a0\u7684dx<\/em>dx\u52a0\u4e0a\u8870\u51cf\u56e0\u5b50\uff0c\u5728\u7d2f\u52a0\u8f83\u591a\u65f6\u5feb\u4e8eAdaGrad\u6536\u655b<br \/> Adam\uff1a<br \/> \u5f15\u5165\u7b2c\u4e00\u548c\u7b2c\u4e8c\u52a8\u91cf<\/p>\n<h5>\uff082\uff09\u8c37\u6b4c\u674e\u6c90\u52a8\u624b\u5b66\u6df1\u5ea6\u5b66\u4e60<\/h5>\n<p>\u30107.20.21.\u30111-16\u8282V2\u7248\u672c \u57fa\u672c\u4e0a\u90fd\u6ca1\u542c\u61c2<br \/> \u301011.4\u3011dropout<br \/> \u5c06\u4e00\u4e9b\u9690\u85cf\u5c42\u7684\u8f93\u51fa\u9879\u968f\u673a\u53d8\u62100\u6765\u63a7\u5236\u6a21\u578b\u7684\u590d\u6742\u5ea6<br \/> \u8d8a\u5f80\u540e\u6bd4\u7387\u8d8a\u5c0f<br \/> \u301011.5\u3011lenet vgg<br \/> \u301011.7\u3011googlenet<br \/> \u301011.8\u3011<br \/> \u6279\u91cf\u5f52\u4e00\u5316<br \/> \u4f5c\u7528\u5728\u6fc0\u6d3b\u51fd\u6570\u524d\uff0c\u901a\u8fc7\u5728\u6bcf\u4e2a\u5c0f\u6279\u91cf\u91cc\u9762\u52a0\u5165\u566a\u97f3\u63a7\u5236\u6a21\u578b\u590d\u6742\u5ea6\uff0c\u6ca1\u5fc5\u8981\u548cdroupout\u6df7\u5408\u4f7f\u7528\uff0c\u4f1a\u52a0\u901f\u6a21\u578b\u6536\u655b\u4f46\u662f \u4e0d\u4f1a\u6539\u53d8\u6a21\u578b\u7cbe\u5ea6<br \/> resnet<br \/> \u5728\u8f93\u5165\u7684\u5730\u65b9\u5f15\u5165\u4f7f\u7528\u6377\u5f84\uff0c\u5728\u8f93\u51fa\u7684\u5730\u65b9\u76f8\u52a0\u3002\u5982\u679c\u901a\u9053\u6570\u4e0d\u540c\u65f6\u53ef\u4ee5\u901a\u8fc71*1\u5377\u79ef\u6539\u53d8\u901a\u9053\u3002<br \/> \u301011.9\u3011<br \/> 1.\u6240\u6709\u7c7b\u578b\u7684resnet\u5377\u79ef\u64cd\u4f5c\u7684\u901a\u9053\u6570(\u65e0\u8bba\u662f\u8f93\u5165\u901a\u9053\u8fd8\u662f\u8f93\u51fa\u901a\u9053)\u90fd\u662f64\u7684\u500d\u6570\uff0c\u8d77\u59cb\u901a\u9053\u6570\u90fd\u662f64\uff0c128\uff0c256\uff0c512\uff0c\u6682\u4e14\u79f0\u5b83\u4e3a\u201c\u57fa\u51c6 \u901a\u9053\u6570\u201d<br \/> 2.\u6240\u6709\u7c7b\u578b\u7684resnet\u7684\u5377\u79ef\u6838\u53ea\u67093x3\u548c1x1\u4e24\u79cd<br \/> 3.\u65e0\u8bba\u54ea\u4e00\u79cdresnet\uff0c\u9664\u4e86\u516c\u5171\u90e8\u5206(conv1)\u5916\uff0c\u90fd\u662f\u75314\u5927\u5757\u7ec4\u6210(con2_x,con3_x,con4_x,con5_x,)<br \/> 4.\u7ecf\u8fc7conv1\u65f6\u8f93\u5165\u56fe\u7247\u5c31\u5df2\u7ecf\u88ab\u7f29\u5c0f\u4e864\u500d\u4e86(\u4e00\u4e2a\u5377\u79ef\u548c\u4e00\u4e2a\u6700\u5927\u6c60\u5316\u64cd\u4f5c\u54041\/2)\u3002\u9664\u4e86conv2\u4e0d\u4f1a\u7f29\u5c0f\u56fe\u7247\u5916\uff0c\u5176\u4f59\u4e09\u4e2aconv\u90fd\u4f1a\u7f29\u5c0f\u4e00\u534a\u56fe\u7247\uff0c\u540c\u65f6\u589e\u52a0\u8f93\u51fa\u901a\u9053\u7684\u540c\u65f6\uff0c<br \/> 4.\u6700\u540e\u4e00\u4e2aavgpooling\u628a\u56fe\u7247\u53d8\u62101\u00d71\u7684\u3002<br \/> \u301012.13\u3011<br \/> Resnet\u7684\u51fa\u53d1\u70b9\u662f\u8ba4\u4e3a\u6df1\u5c42\u7f51\u7edc\u4e0d\u5e94\u8be5\u6bd4\u6d45\u5c42\u7f51\u7edc\u6027\u80fd\u5dee\uff0c\u6240\u4ee5\u4e3a\u4e86\u9632\u6b62\u7f51\u7edc\u9000\u5316,\u5f15\u5165\u4e86\u5927\u91cfidentity\u6052\u7b49\u6620\u5c04\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u628a\u539f\u59cb\u4fe1\u606f\u6d41\u5165\u66f4\u6df1\u7684\u5c42\uff0c\u6291\u5236\u4e86\u4fe1\u606f\u7684\u9000\u5316<br \/> \u6b8b\u5dee\u5757\u6709\u7528\u662f\u56e0\u4e3aidentity\u8fd9\u4e00\u652f\u8def\u7684\u5bfc\u6570\u662f1\uff0c\u6240\u4ee5\u53ef\u4ee5\u628a\u6df1\u5c42\u7684loss\u5f88\u597d\u7684\u4fdd\u7559\u4f20\u9012\u7ed9\u6d45\u5c42\uff0c\u56e0\u4e3a\u795e\u7ecf\u7f51\u7edc\u4e00\u4e2a\u5f88\u5927\u7684\u95ee\u9898\u5c31\u662f\u68af\u5ea6\u94fe\u5f0f\u6cd5\u5219\u5e26\u6765\u7684\u68af\u5ea6\u5f25\u6563<br \/> \u6b8b\u5dee\u5757\u5c31\u662f\u4e00\u4e2a\u5dee\u5206\u653e\u5927\u5668<\/p>\n<p>\u301011.10\u3011<br \/> GPU\u6bd4CPU\u6838\u591a\u4e0a\u5343\u500d\uff0c\u8fbe\u52302k-4k\u4e2a\uff0c\u8fd9\u662f\u6700\u6839\u672c\u4e0a\u7684\u533a\u522b<br \/> \u5355\u673a\u591a\u4e2aGPU\u6570\u636e\u5e76\u884c\u8ba1\u7b97\u65b9\u6cd5\uff1a<br \/> \u2460\u628a\u53c2\u6570\u590d\u5236\u653e\u5728\u4e0d\u540cGPU data parallel<br \/> \u2461\u628a\u6bd4\u8f83\u5927\u7684\u6a21\u578b\u7684\u4e0d\u540c\u5757\u653e\u5728\u4e0d\u540c\u7684GPU model parallel<br \/> distributed data parallel \u5206\u5e03\u5f0f\u6570\u636e\u5e76\u884c\u8ba1\u7b97<br \/> \u6b65\u9aa4\uff1a<br \/> \u2460scatter\uff1a \u628a\u6570\u636e\u5206\u53d1\u5230GPU<br \/> \u2461replicate\uff1a\u590d\u5236\u6a21\u578b\u5230\u6bcf\u4e2a\u663e\u5361<br \/> \u2462gather\uff1a\u628a\u5404GPU\u7ed3\u679c\u6c47\u5408\u5230\u4e3bGPU<br \/> \u301011.12\u3011<br \/> \u591aGPU\u8bad\u7ec3\u6709\u53ef\u80fd\u901f\u5ea6\u4f1a\u66f4\u6162\uff0c\u662f\u56e0\u4e3a\u670d\u52a1\u5668\u663e\u5361\u6709\u522b\u4eba\u5728\u4f7f\u7528\uff0c\u901f\u5ea6\u5feb\u7684\u8981\u7b49\u901f\u5ea6\u6162\u7684\u8ba1\u7b97\u5b8c\u6bd5<br \/> \u6570\u636e\u589e\u5f3a;<br \/> \u4e0a\u4e0b\u968f\u673a\u7ffb\u8f6c\u53d6\u51b3\u4e8e\u6570\u636e\u96c6\u7684\u6837\u5b50\uff0c\u6811\u53f6\u53ef\u4ee5\uff0c\u732b\u4e0d\u53ef\u4ee5<br \/> \u8272\u8c03\u662f\u9ec4\u4e00\u70b9\u8fd8\u662f\u84dd\u4e00\u70b9<br \/> \u9971\u548c\u5ea6\u662f\u989c\u8272\u6d53\u5ea6<br \/> \u660e\u4eae\u5ea6\u662f\u4eae\u5ea6<br \/> \u4f7f\u7528\u6761\u4ef6\uff1a\u5047\u5982\u90e8\u7f72\u7684\u65f6\u5019\u548c\u5b9e\u9a8c\u7684\u65f6\u5019\u6ca1\u4ec0\u4e48\u76f8\u5dee\u53ef\u4ee5\u4e0d\u4f7f\u7528<br \/> \u9047\u5230\u6781\u5ea6\u504f\u659c\u6570\u636e\u65f6\u53ef\u4ee5\u4f7f\u7528\u6570\u636e\u589e\u5f3a \u6216\u8005\u91cd\u91c7\u6837<br \/> \u301011.13\u3011\u8fc1\u79fb\u5b66\u4e60<br \/> \u4e24\u8005\u4f7f\u7528\u4e00\u6837\u5f97\u7f51\u7edc<br \/> \u2460\u56e0\u4e3a\u539f\u6765\u6570\u636e\u96c6\u66f4\u52a0\u590d\u6742\uff0c\u6240\u4ee5\u4f7f\u7528\u66f4\u5f3a\u7684\u6b63\u5219\u5316<br \/> \u4f7f\u7528\u66f4\u5c0f\u7684\u5b66\u4e60\u7387\uff0c\u66f4\u5c11\u7684\u6570\u636e\u8fed\u4ee3<br \/> \u2461\u56e0\u4e3a\u5e95\u5c42\u7684\u7279\u5f81\u63d0\u53d6\u66f4\u52a0\u7ec6\u8282\uff0c\u9ad8\u5c42\u611f\u53d7\u91ce\u66f4\u5927\u63d0\u53d6\u7684\u66f4\u52a0\u8bed\u4e49<br \/> \u6240\u4ee5\u56fa\u5b9a\u5e95\u5c42\u7684\u4e00\u4e9b\u53c2\u6570\uff0c\u4f7f\u5f97\u6a21\u578b\u590d\u6742\u5ea6\u4f4e\u4e00\u4e9b<br \/> \u301011.14\u3011\u76ee\u6807\u68c0\u6d4b<br \/> \u8fb9\u7f18\u6846\uff1a\u8868\u793a\u7269\u4f53\u771f\u5b9e\u7684\u4f4d\u7f6e<br \/> \u951a\u6846\uff1a\u8868\u793a\u7b97\u6cd5\u5bf9\u7269\u4f53\u8fb9\u7f18\u6846\u7684\u9884\u6d4b<br \/> \u2460\u505a\u51fa\u591a\u4e2a\u9884\u6d4b<br \/> \u2461\u9884\u6d4b\u6bcf\u4e2a\u951a\u6846\u662f\u5426\u5305\u542b\u6240\u5173\u6ce8\u7684\u7269\u4f53<br \/> \u2462\u5982\u679c\u662f\uff0c\u9884\u6d4b\u951a\u6846\u5230\u771f\u5b9e\u8fb9\u6846\u7684\u504f\u79fb<br \/> iou\u4ea4\u5e76\u6bd4\uff1a<br \/> \u7528\u6765\u8ba1\u7b97\u4e24\u6846\u4e4b\u95f4\u7684\u76f8\u4f3c\u5ea6<br \/> jaccard \u6307\u6570 = \u76f8\u4ea4\/\u76f8\u5e76 0\u8868\u793a\u4e0d\u76f8\u4f3c\uff08\u76f8\u4ea4\u4e3a0\uff09<br \/> \u20141\u8868\u793a\u5b8c\u5168\u76f8\u4f3c\uff08\u76f8\u4ea4\uff0c\u76f8\u5e76\u90fd\u4e3a1\uff09<br \/> NMS\u975e\u6781\u5927\u503c\u6291\u5236\u8f93\u51fa\uff1a\u53bb\u6389\u9884\u6d4b\u4e2d\u5206\u503c\u6bd4\u8f83\u5c0f\u7684<br \/> \u301011.15\u3011<br \/> Rol\u5174\u8da3\u533a\u57df\u6c60\u5316\u5c42\uff1a\u628a\u951a\u6846\u5f53\u505a\u4e00\u4e2a\u56fe\u7247\uff0c\u7ed9\u5b9a\u8f93\u51fam<em>n\uff0c\u603b\u80fd\u5f97\u5230m<\/em>n\u5747\u5206\u4e0b\u7684\u6700\u5927\u503c<br \/> R-CNN\uff1a\u533a\u57df\u5377\u79ef<br \/> Fast RCNN:\u4e0d\u518d\u5bf9\u6bcf\u4e00\u4e2a\u951a\u6846\u505aCNN\u62bd\u53d6<br \/> Faster RCNN\uff1a\u5148\u8fdb\u884c\u7cd9\u4e00\u70b9\u9884\u6d4b\u7136\u540e\u518dFast RCNN<br \/> Mask RCNN:\u50cf\u7d20\u7ea7\u522b\u7684\u6807\u53f7\uff0c\u662f\u5728\u6700\u9ad8\u8981\u6c42\u7cbe\u5ea6\u573a\u666f\u4e0b\u4f7f\u7528\uff08\u8bed\u4e49\u5206\u5272\uff09<br \/> \u301011.16\u3011SSD\u5355\u53d1\u591a\u6846\u68c0\u6d4b\uff1a\u4e0d\u518d\u5177\u6709RPN\u7f51\u7edc<br \/> YOLO\uff1a\u53ea\u770b\u4e00\u6b21\uff0c\u5c06\u56fe\u7247\u5747\u5206\u4e3as<em>s\u4e2a\u951a\u6846\uff0c\u8ba9\u76f8\u90bb\u7684\u951a\u6846\u4e0d\u518d\u91cd\u53e0\uff0c\u8ba9\u8ba1\u7b97\u66f4\u5feb\u901f\u3002<br \/> \u6bcf\u4e00\u4e2a\u951a\u6846\u9884\u6d4bB\u4e2a\u8fb9\u7f18\u6846\uff0c\u56e0\u4e3a\u6709\u53ef\u80fd\u540c\u65f6\u6846\u4f4f\u4e24\u4e2a\u7269\u4f53<br \/> \u301011.18\u3011<br \/> \u8bed\u4e49\u5206\u5272\uff1a\u8bc6\u522b\u51fa\u6bcf\u4e2a\u50cf\u7d20\u662f\u4ec0\u4e48\u7c7b\u522b\uff0c\u80cc\u666f\u865a\u5316\u4e3a\u5e94\u7528<br \/> \u5b9e\u4f8b\u5206\u5272\uff1a\u5206\u51fa\u6bcf\u4e2a\u50cf\u7d20\u5c5e\u4e8e\u90a3\u4e00\u4e2a\u7269\u4f53\uff0c\u5982\u6709\u72d7\u7c7b\u4e24\u53ea\uff0c\u5206\u4e3adog1,dog2<br \/> \u8f6c\u7f6e\u5377\u79ef\uff1a\u7528\u6765\u589e\u52a0\u8f93\u5165\u9ad8\u5bbd<br \/> \u5168\u8fde\u63a5\u795e\u7ecf\u7f51\u7edcFCN\uff1a1<\/em>1\u5377\u79ef\u5c42\uff08\u51cf\u5c11\u901a\u9053\u7ef4\u5ea6\uff09+\u8f6c\u7f6e\u5377\u79ef\uff08\u6269\u5927\u56fe\u7247\uff09<br \/> \u6837\u5f0f\u8fc1\u79fb\uff1a\u5c06\u6837\u5f0f\u56fe\u7247\u7684\u6837\u5f0f\u8fc1\u79fb\u5230\u5185\u5bb9\u56fe\u7247\u4e0a\uff0c\u5f97\u5230\u548c\u6210\u56fe\u7247<br \/> \u301011.19\u3011<br \/> \u5e8f\u5217\u6570\u636e\u6a21\u578b<br \/> \u81ea\u56de\u5f52\u6a21\u578b\uff1a\u7ed9\u5b9a\u524dt-1\u4e2a\u6570\u636e\uff0c\u5bf9\u7b2ct\u4e2a\u6570\u636e\u8fdb\u884c\u9884\u6d4b<br \/> \u9a6c\u5c14\u79d1\u592b\u5047\u8bbe:\u5047\u8bbe\u5f53\u524d\u6570\u636e\u53ea\u8ddf\u03c4\u4e2a\u8fc7\u53bb\u6570\u636e\u76f8\u5173\uff0c\u6bcf\u6b21\u9884\u6d4b\u4e0d\u9700\u8981\u4f7f\u7528\u8fc7\u53bb\u5168\u90e8\u6570\u636e<br \/> \u6f5c\u53d8\u91cf\u6a21\u578b: \u5f15\u5165\u6f5c\u53d8\u91cf ht\u6765\u8868\u793a\u8fc7\u53bbt-1\u4e2a\u6570\u636e\u7684\u4fe1\u606f\uff0c\u5728\u9884\u6d4b\u7b2ct\u65f6\u4f7f\u7528ht\u548c\u8fc7\u53bbt-1\u4e2a\u6570\u636e\uff0c\u76f8\u5f53\u4e8e\u5efa\u7acb\u4e86\u4e24\u4e2a\u6a21\u578b\u3002<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/6787ad0d8cc64957b4523612e9a1b8b5.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c16\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c16\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<p>\u6587\u672c\u9884\u5904\u7406\uff1a\u628a\u6bcf\u4e2a\u53e5\u5b50\u62c6\u6210 \u8bcd\u6e90token<br \/> \u6bcf\u4e2atoken\u6839\u636e\u8bcd\u6c47\u8868\u8f6c\u6362\u6210\u7d22\u5f15\uff0c\u7136\u540e\u6bcf\u4e00\u4e2a\u53e5\u5b50\u662f\u4e00\u4e2a\u6570\u5b57\u7d22\u5f15\u8868<br \/> \u301011.20\u3011RNN<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/2668ea487671464e8d707584f166ba6f.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c17\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c17\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u8f93\u5165\u2018\u4f60\u2019\u65f6\uff0c\u5f97\u5230h1\uff0c\u901a\u8fc7h1\u8f93\u51fao1\u9884\u6d4b\u503c\u2018\u597d\u2019\uff0c\u6b64\u65f6\u6ca1\u6709\u89c2\u5bdf\u5230\u8f93\u5165x2\u2018\u597d\u2019\u8fd9\u4e2a\u5b57<br \/> RNN\u662f\u5171\u4eab\u7684\u4e00\u5957\u6743\u91cd\uff0c\u5b83\u7684\u68af\u5ea6\u6d88\u5931\u662f\u6307\u603b\u68af\u5ea6\u88ab\u8fd1\u8ddd\u79bb\u68af\u5ea6\u906e\u6321<br \/> \u301011.23\u3011GRU\u95e8\u63a7\u5faa\u73af\u5355\u5143<br \/> \u66f4\u65b0\u95e8update gate\uff1a\u80fd\u5173\u6ce8\u7684\u673a\u5236Zt<br \/> \u91cd\u7f6e\u95e8reset gate\uff1a\u80fd\u9057\u5fd8\u7684\u673a\u5236Rt<br \/> \u5019\u9009\u9690\u72b6\u6001\uff1a<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/bb39c143bc8442bd984ef1fae5702535.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c18\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c18\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> Rt\u662f0-1\u51b3\u5b9a\u662f\u5426\u4f7f\u7528\u524d\u4e00\u4e2a\u9690\u72b6\u6001\uff0c\u5982\u679c\u662f0\u5219\u8bf4\u660e\u524d\u9762\u9690\u85cf\u72b6\u6001\u4fe1\u606f\u5168\u90e8\u4e0d\u9700\u8981\uff0c\u56de\u5230\u521d\u59cb\u72b6\u6001\uff1b\u5982\u679c\u662f1\u5219\u76f8\u5f53\u4e8eRNN\u628a\u524d\u9762\u9690\u85cf\u72b6\u6001\u62ff\u6765\u4f7f\u7528\uff0c\u8fd9\u4e00\u4e2aRt\u662f\u81ea\u52a8\u5b66\u4e60\u7684<br \/> Zt\u662f\u5426\u4f7f\u7528\u5f53\u524d\u5173\u4e8eHt\u7684\u4fe1\u606f\uff1f\uff1f\uff1f<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/907d7ed848a74e9fb3b2ce8812726ec2.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c19\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c19\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u301011.25\u3011LSTM<br \/> \u6bd4RNN\u591a\u4e86\u4e00\u4e2a\u9690\u85cf\u7684\u8bb0\u5fc6\u5355\u5143<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/e10f7a065a954043b9c89e4fc4e7b05e.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c20\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c20\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u7531\u4e8e\u65e0\u6cd5\u4fdd\u8bc1Ct\u5728-1\u5230+1\u4e4b\u95f4\uff0c\u6240\u4ee5\u901a\u8fc7tanh\u4f7f\u5f97Ct\u5728-1\u5230+1\u4e4b\u95f4<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/41712b8f73074ce89fed68d8896a83b1.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c21\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c21\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> Encoder Decoder<br \/> \u7f16\u7801\u5668:\u5c06\u8f93\u5165\u7f16\u7a0b\u6210\u4e2d\u95f4\u8868\u8fbe\u5f62\u5f0f\uff08\u7279\u5f81)<br \/> \u89e3\u7801\u5668:\u5c06\u4e2d\u95f4\u8868\u793a\u89e3\u7801\u6210\u8f93\u51fa\uff0c\u62bd\u8c61\u540e\u4e5f\u53ef\u4ee5\u6709\u4e00\u4e2a\u989d\u5916\u7684\u8f93\u51fa<br \/> \u7f3a\u70b9:\u5b9a\u957f\u7f16\u7801\u662f\u4fe1\u606f\u74f6\u9888<br \/> \u957f\u5ea6\u8d8a\u957f\uff0c\u524d\u9762\u8f93\u5165\u8fdbRNN\u7684\u4fe1\u606f\u5c31\u8d8a\u88ab\u7a00\u91ca<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/6e6a493d15934182b7d21ed9bd99540c.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c22\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c22\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u675f\u641c\u7d22<br \/> \u5728seq2seq\u4e2d\u5c06\u901a\u8fc7\u8d2a\u5fc3\u5f53\u524d\u9884\u6d4b\u6700\u5927\u503c\u8f93\u51fa\u5230\u4e0b\u4e00\u4e2a\u5e8f\u5217<br \/> \u4f46\u662f\u8d2a\u5fc3\u641c\u7d22\u4e0d\u4e00\u5b9a\u662f\u6700\u4f18\u7684<br \/> \u5728\u7b2c\u4e8c\u6b65\u7684\u65f6\u5019\uff0c\u56e0\u4e3a\u4e0d\u9009\u62e9\u6700\u5927\u503c0.4\u5bfc\u81f4\uff08\u4e16\u754c\u7ebf\u6536\u675f\uff09\u4ea7\u751f\u7684\u7b2c\u4e09\u6b65\u503c\u4e0d\u4e00\u6837\uff0c\u6700\u7ec8\u53f3\u8fb9\u7684\u7ed3\u679c\u8981\u597d\u4e8e\u8d2a\u5fc3\u641c\u7d22<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/577ced587dc1469c99db7d07ab49fe51.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c23\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c23\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u800c\u675f\u641c\u7d22\u662f\u4fdd\u5b58\u6700\u597d\u7684K\u4e2a\u5019\u9009<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/258377d8880344f48aea2a48575da78d.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c24\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c24\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u6ce8\u610f\u529b\u673a\u5236<br \/> \u5377\u79ef\u3001\u5168\u8fde\u63a5\u3001\u6c60\u5316\u5c42\u90fd\u662f\u4e0d\u8ddf\u968f\u610f\u5fd7\u8003\u8651\u7ebf\u7d22\u7684\uff08\u4e00\u5757\u4e00\u5757\u778e\u770b\uff09<br \/> \u6ce8\u610f\u529b\u673a\u5236\u5c31\u662f\u663e\u5f0f\u7684\u8003\u8651\u7ebf\u7d22\uff0c\u6709\u504f\u5411\u6027\u7684\u9009\u62e9\u67d0\u4e9b\u8f93\u5165<br \/> \u4e3e\u4f8b\uff1a\u6211\u8981\u4ece\u5916\u754c\u73af\u5883\u4e2d\u627e\u5230\u5496\u5561\u676f\u6765\u559d\u5496\u5561<br \/> query\u5c31\u662f\u6211\u60f3\u8981\u559d\u5496\u5561\u8fd9\u4ef6\u4e8b<br \/> key\u662f\u5916\u754c\u73af\u5883\u4e2d\u7684\u62a5\u7eb8\uff0c\u5496\u5561\u676f\u7b49<br \/> value\u662f\u62a5\u7eb8\uff0c\u5496\u5561\u676f\u5bf9\u5e94\u7684\u503c<br \/> \u8fc7\u7a0b\uff1a\u6839\u636equery\u9009\u62e9\u4e00\u5bf9key,value<br \/> \u80cc\u666f \uff1a<br \/> \u2460\u975e\u53c2\u6570\uff08\u4e0d\u9700\u8981\u5b66\u53c2\u6570\uff09\u6ce8\u610f\u529b\u6c60\u5316\u5c42??\u672a\u5b8c\u5168\u7406\u89e3<br \/> \u7ed9\u5b9a\u6570\u636e<img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/f08b94060b8d4c7090cb351485ec2648.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c25\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c25\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u5bf9\u6570\u636e\u505a\u5e73\u5747\u6c60\u5316\u662f\u6700\u7b80\u5355\u7684\u65b9\u6848,\u4e0d\u7ba1\u67e5\u8be2\uff0c\u76f4\u63a5\u5bf9y\u6c42\u5e73\u5747<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/ffcf8a718f4a4810bc96039f17111eb7.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c26\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c26\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u66f4\u597d\u7684\u65b9\u6848\u662f60\u5e74\u4ee3\u63d0\u51fa\u6765\u7684Nadaraya-Watson\u6838\u56de\u5f52<br \/> \u7ed9\u5b9a\u4e00\u4e2aquery\u540e\uff0c\u5bf9\u6240\u6709\u5019\u9009\u7684Xi\uff08key\uff09\u76f8\u51cf\u505a\u4e00\u4e2aK\uff08\u6838\u51fd\u6570:\u8861\u91cfX\u4e0eXi\u8ddd\u79bb\u7684\u4e00\u4e2a\u51fd\u6570\uff0c\u53ef\u4ee5\u662f\u9ad8\u65af\u6838\uff09\uff0c\u7136\u540e\u9664\u548c\u5f97\u5230\u4e00\u4e2a\u6982\u7387\uff0c\u8fd9\u6837\u5c31\u62ff\u5230\u6bcf\u4e00\u4e2aXi\u7684\u76f8\u5bf9\u91cd\u8981\u6027\uff0c\u4e4b\u540e\u518d\u52a0\u6743\u5bf9Yi\u6c42\u548c\u53d6\u51fa\u76f8\u8fd1\u7684Yi<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/91482926055f4b26be3be69b57992787.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c27\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c27\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u2461\u5728\u6b64\u57fa\u7840\u4e0a\u5f15\u5165\u53ef\u4ee5\u5b66\u4e60\u7684w<img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/72c67ab2273f45bb92b5d179f43f1337.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c28\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c28\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u4e00\u822c\u53ef\u4ee5\u5199\u4f5c\uff0c\u03b1(x,y)\u662f\u6ce8\u610f\u529b\u6743\u91cd\uff0c\u22650\u7684<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/b216af6e922d4379a89b771a5db919fd.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c29\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c29\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/0ccf8880b9374176be840bbaddeed969.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c30\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c30\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/ae2074d0787443f7b18cdf5c74a4cb61.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c31\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c31\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u4e3a\u6b64\u6211\u4eec\u9700\u8981\u8bbe\u8ba1a\u6ce8\u610f\u529b\u5206\u6570\uff0c\u6709\u4ee5\u4e0b\u601d\u8def\uff1a<br \/> \u2460\u53ef\u52a0\u7684\u6ce8\u610f\u529b\u5206\u6570\u8ba1\u7b97<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/ace573c5d581402282e978e6f34a4cc6.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c32\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c32\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u7b49\u4ef7\u4e8e\u5c06query\u548cvalue\u5408\u5e76\u8d77\u6765\u540e\u653e\u5165\u5230\u4e00\u4e2a\u9690\u85cf\u5c11\u5c0f\u4e3ah\u8f93\u51fa\u5927\u5c0f\u4e3a1\u7684\u5355\u9690\u85cf\u5c42MLP\uff0c\u4f18\u70b9\u662fQ,K,V\u53ef\u4ee5\u662f\u4efb\u610f\u957f\u5ea6<br \/> \u2461\u70b9\u79ef\u6ce8\u610f\u529b\u5206\u6570\u8ba1\u7b97<br \/> \u8981\u6c42q,k,v\u662f\u540c\u4e00\u957f\u5ea6<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/b7e66d11922a4a2caeb28236f872bfc1.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c33\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c33\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" >\u301011.27\u3011<br \/> \u5728seq2seq\u65f6\u4ec5\u5c06\u7f16\u7801\u7684\u6700\u540e\u4e00\u4e2a\u9690\u85cf\u72b6\u6001\u4f20\u5165\u89e3\u7801\u4e4b\u4e2d<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/ad4a42c1d8d04b3dafc333f021fd6a00.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c34\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c34\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u800c\u52a0\u5165\u6ce8\u610f\u529b\u673a\u5236\u540e\uff0c\u89e3\u7801\u65f6\u4e0d\u4ec5\u9700\u8981\u4e4b\u524d\u7f16\u7801\u65f6\u7684\u8f93\u51fa\uff0c\u8fd8\u8981\u5c06\u4e0a\u4e00\u4e2a\u89e3\u7801\u8f93\u51fa\u503cembedding\u540e\u52a0\u5165\u8fdb\u53bb<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/0d7a4fd323d44e1b93d2381ea3e45c58.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c35\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c35\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u4e5f\u5c31\u662f\u8bf4\u7f16\u7801\u5668\u5bf9\u6bcf\u6b21\u8bcd\u7684\u8f93\u51fa\u4f5c\u4e3akey\u548cvalue<br \/> \u89e3\u7801\u5668\u5bf9\u4e0a\u4e00\u4e2a\u6b21\u7684\u9884\u6d4b\u662fquery<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/410bd32da8c1461986825e6e9896f82b.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c36\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c36\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<p>\u81ea\u6ce8\u610f\u529b\u673a\u5236\u5c31\u662f\u5c06Xi\u5f53\u505ak,v,q\u6765\u5bf9\u5e8f\u5217\u62bd\u53d6\u7279\u5f81\uff0c\u5b8c\u5168\u5e76\u884c\uff0c\u6700\u957f\u5e8f\u5217\u4e3a1\uff0c\u6700\u957f\u8def\u5f84\u662fO(1)\uff0c\u53ef\u4ee5\u65e0\u89c6\u8ddd\u79bb\uff0c\u8ba1\u7b97\u590d\u6742\u5ea6\u9ad8<\/p>\n<p>Transformer<br \/> \u5de6\u8fb9n\u4e2aencoder\uff0c\u53f3\u8fb9n\u4e2adecoder\u90fd\u662f\u81ea\u5df1\u5b9a\u4e49\u7684\u4e2a\u6570<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/a04663fbf88c45c9bab6e89783491bdf.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c37\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c37\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h5>\uff083\uff09\u6df1\u5ea6\u5b66\u4e60\u5165\u95e8-b\u7ad9\u81f4\u656c\u5927\u795e<\/h5>\n<p>\u2460up\u4e3b\u4e5f\u662f\u4ece\u96f6\u521a\u5f00\u59cb\u5165\u95e8<br \/> \u2461\u4e1c\u5317\u4eba\u7279\u522b\u5e7d\u9ed8<br \/> \u2462\u5177\u6709\u7279\u522b\u7684\u601d\u8003\u548c\u81ea\u8a00\u81ea\u8bed \u53cd\u6b63\u80fd\u591f\u4f7f\u6211\u918d\u9190\u704c\u9876<br \/> \u30107.22\u3011\u611f\u77e5\u673a\uff1a\u5c31\u76f8\u5f53\u4e8e\u63a5\u6536\u591a\u4e2a\u8f93\u5165\u4fe1\u53f7\u540e\u5408\u5e76\u4fe1\u53f7<br \/> \u4fe1\u53f7\u6d41\u52a8\u4ee3\u88681<br \/> \u4e8c\u5206\u7c7b\u611f\u77e5\u673a\u4e0d\u80fd\u89e3\u51b3\u5f02\u6216\u95ee\u9898\u6240\u4ee5\u4ea7\u751f\u4e86\u4eba\u5de5\u667a\u80fd\u5bd2\u51ac<br \/> \u2460\u5bf9\u540c\u5fc3\u5706\u7684\u5f02\u6216\u6570\u636e\u505a\u5750\u6807\u8f74\u8f6c\u6362\u6210\u6781\u5750\u6807\u8f74\u53ef\u4ee5\u5b9e\u73b0\u7ebf\u6027\u5206\u7c7b<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/1a2e76f2008e4186b7c2f7f0b888b9e8.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c38\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c38\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<p>\u2461\u542b\u6709\u9690\u85cf\u5c42\u7684\u795e\u7ecf\u7f51\u7edc\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5f02\u6216<br \/> \uff08\u9996\u5148\u8fdb\u884c\u4e0e\u975e\u548c\u6216\u8fd0\u7b97\u7136\u540e\u5c06\u7ed3\u679c\u8fdb\u884c\u4e0e\u8fd0\u7b97\uff09<br \/> \u6fc0\u6d3b\u51fd\u6570\uff1a\u5c31\u662f\u5224\u65ad\u6d41\u7a0b\u662f1\u8fd8\u662f0,1\u4ee3\u8868\u6d41\u52a8<br \/> \u6fc0\u6d3b\u51fd\u6570\u975e\u7ebf\u6027\u8981\u6c42\u7684\u539f\u56e0\uff1a\u56e0\u4e3a\u82e5\u662f\u7ebf\u6027\u6bcf\u4e00\u5c42\u795e\u7ecf\u5143\u7684\u4e58\u79ef\u76f8\u52a0\u5c31\u53ef\u4ee5\u5408\u5e76\uff0c\u4e5f\u5c31\u662f\u5c42\u6570\u584c\u9677\u4e86<br \/> \u30107.23\u3011<br \/> \u56de\u5f52\u95ee\u9898\u7528\u6052\u7b49\u51fd\u6570<br \/> \u4e8c\u5206\u7c7b\u7528sigmoid<br \/> sigmoid\uff08\u9971\u548c\uff09\uff1a\u53ef\u4ee5\u5c06\uff08-\u65e0\u7a77\uff0c+\u6b63\u65e0\u7a77\uff09\u7684\u503c\u538b\u7f29\u52300-1\u4e4b\u95f4<br \/> \u591a\u5206\u7c7b\u7528softmax<br \/> softmax:\u5b83\u7684\u8f93\u51fa\u76f8\u5f53\u4e8e\u6982\u7387<br \/> tanh\u53cc\u66f2\u6b63\u5207\uff1a\u8f93\u51fa\u662f-1\u52301\u4e4b\u95f4<br \/> relu\uff1a\u8d1f\u503c\u68af\u5ea6\u4e3a0\uff1b\u53d8\u4f53leaky relu\u8d1f\u503c\u4e58\u4ee50.1<br \/> \u76d1\u7763\u6570\u636e\uff1a\u6982\u7387\u6700\u5927\u7684\u8bbe\u7f6e\u4e3a1\u5176\u4f59\u7684 \u8bbe\u7f6e\u4e3a0\uff0c\u8fd9\u5c31\u662fone-hot<br \/> \u6fc0\u6d3b\u51fd\u6570\uff1a\u5c31\u662f\u5c06xw\u5f97\u6570\u975e\u7ebf\u6027\u5316\uff0c\u4e0d\u975e\u7ebf\u6027\u5316\u591a\u5c42\u548c\u5355\u5c42\u65e0\u5f02\u3002<br \/> \u5747\u65b9\u8bef\u5dee\uff1a\u5c06\u8f93\u51fa\u7684\u6982\u7387\u51cf\u53bb\u76d1\u7763\u6570\u636e\uff0c\u8f93\u51fa\u7684\u6982\u7387\u6700\u5927\u7684\u4e00\u9879\uff08\u59820.9\uff09\u5982\u679c\u4e3a\u6b63\u786e\u9879\u7684\u76d1\u7763\u6570\u636e\uff08\u4e3a1\uff09\u5219\u4e24\u8005\u5dee\u503c\u975e\u5e38\u5c0f\u2013&gt;\u4e5f\u5c31\u8bf4\u660e\u5747\u65b9\u8bef\u5dee\u603b\u503c\u8d8a\u5c0f\uff0c\u8f93\u51fa\u7ed3\u679c\u8d8a\u6b63\u786e<br \/> \u4ea4\u53c9\u71b5\uff1a\u76d1\u7763\u6570\u636e\u00d7ln\u8f93\u51fa\u6982\u7387 \u53ea\u6709\u6b63\u786e\u9879\u76d1\u7763\u6570\u636e\u4e3a1\uff0c\u5176\u4f59\u4e3a0\uff0c\u4e5f\u5c31\u662f\u8bf4\u53ea\u8ba1\u7b97\u6b63\u786e\u9879\u6570\u503c ln\u662f\u5728\uff080,1\uff09\u4e0a\u8d8a\u63a5\u8fd11\uff0c\u8d8a\u9760\u8fd10\u2013&gt;\u4e5f\u5c31\u8bf4\u660e\u4ea4\u53c9\u71b5\u8d8a\u5c0f\uff0c\u8f93\u51fa\u7ed3\u679c\u8d8a\u6b63\u786e<br \/> \u30107.24\u3011\u68af\u5ea6\uff1a\u662f\u5728\u67d0\u4e00\u70b9\u504f\u5bfc\u503c\u5f97\u96c6\u5408\uff0c\u4ee3\u8868\u7740\u51fd\u6570\u503c\u51cf\u5c0f\u6700\u591a\u7684\u65b9\u5411 \u3002<br \/> \u30107.25\u3011\u4e24\u5c42\u795e\u7ecf\u7f51\u7edc\u7684\u5b9e\u73b0<br \/> \u30107.27\u3011\u53cd\u5411\u4f20\u64ad\u7b97\u6cd5 \u57fa\u4e8e\u94fe\u5f0f\u6c42\u5bfc\u6cd5\u5219\uff0c\u4e5f\u5c31\u662f\u5c06\u5404\u8282\u70b9\u504f\u5bfc\u6570\u76f8\u4e58<br \/> \u901a\u8fc7\u52a0\u6cd5\u70b9\u4e0d\u53d8\uff0c\u901a\u8fc7\u4e58\u6cd5\u70b9\u98a0\u5012\u76f8\u4e58\u3002<br \/> \u30108.2\u3011\u4f18\u5316\u65b9\u6cd5\uff1a<br \/> SGD\u968f\u673a\u68af\u5ea6\u4e0b\u964d \u4e4b\u5b57\u578b\u5411\u6700\u4f4e\u70b9\u524d\u8fdb\uff0c\u4f1a\u5b58\u5728\u6548\u7387\u6162\u7684\u95ee\u9898<br \/> Momentum\u52a8\u91cf\u4e0b\u964d\u6cd5 \u5c0f\u7403\u5728\u659c\u5761\u6eda\u52a8\u4e0b\u964d\uff0c\u4e4b\u5b57\u5f62\u4f1a\u51cf\u5f31\uff0c\u4f46\u4f1a\u5728\u6700\u4f4e\u70b9\u6765\u56de\u91cd\u590d<br \/> Nestero\u68af\u5ea6\u52a0\u901f\u6cd5 \u5c0f\u7403\u4e2d\u5750\u4e86\u4e00\u4e2a\u9a7e\u9a76\u5458\uff0c\u4e0b\u964d\u5230\u6700\u4f4e\u70b9\u65f6\u4f1a\u6291\u5236\u4e0a\u5761<br \/> AdaGrad\u9002\u7528\u5b66\u4e60\u7387\u4e0b\u964d\u6cd5 \u8d8a\u9760\u8fd1\u6700\u4f4e\u70b9\u65f6\u5b66\u4e60\u7387\u8d8a\u5c0f<br \/> \u30108.3\u3011Adam\u7ed3\u5408Momentum\u548cAdaGrad<br \/> Nadam\u662f\u7ed3\u5408\u4e86Adam\u548cNestero<\/p>\n<h5>\uff084\uff09\u83ab\u70e6pytorch<\/h5>\n<p>\u30107.25\u3011p1-p20 pytorch\u57fa\u672c\u8bed\u6cd5<\/p>\n<h5>\uff085\uff09\u5c0f\u571f\u5806pytorch<\/h5>\n<p>\u30107.26\u3011\u7528pytorch\u5b9e\u73b0CNN\u5957\u8def<br \/> \u770bpytorch\u6df1\u5ea6\u5b66\u4e60\u5165\u95e8\u4e0e\u5b9e\u6218\u5b8c\u6210fashion-mnist\u6570\u636e\u96c6cnn<br \/> \u30108.4\u3011transforms\u5de5\u5177<br \/> ToTensor<br \/> \u30109.1\u3011pytorch RNN<\/p>\n<h5>\uff086\uff09pytorch<\/h5>\n<p>\u30109.20\u3011RNN<br \/> \u30109.22\u3011\u6570\u636e\u96c6\u51c6\u5907<br \/> \u30109.27\u3011RNN\u7ed3\u6784\u642d\u5efa<br \/> \u301010.3\u3011RNN\u8bad\u7ec3<\/p>\n<h5>\uff087\uff09\u674e\u5b8f\u6bc5\u6df1\u5ea6\u5b66\u4e60<\/h5>\n<p>\u30107.31\u3011\u795e\u7ecf\u7f51\u7edc\u7b2c\u4e00\u8bfe<br \/> \u30108.1\u3011\u7406\u89e3\u4e86CNN\u7684\u5377\u79ef\u6c60\u5316\u64cd\u4f5c\u539f\u7406\uff0c\u6743\u503c\u5171\u4eab<br \/> \u30108.9\u3011<br \/> \u5377\u79ef\u516c\u5f0f\uff1a\u65b0=\uff08\u65e7-\u5377\u79ef\u6838\u5927\u5c0f+2<em>\u586b\u5145\uff09\/\u6b65\u957f+1<br \/> \u6c60\u5316\u516c\u5f0f\uff1a\u65b0=\uff08\u65e7-\u5377\u79ef\u6838\u5927\u5c0f+2\u586b\u5145)\/\u6b65\u957f+1<br \/> \u30108.13\u3011RNN \u6982\u5ff5<br \/> LSTM\u6982\u5ff5<br \/> \u30108.21\u3011RNN\u7ed3\u675f<br \/> \u30108.22\u3011\u534a\u76d1\u7763\u5b66\u4e60<br \/> \u30109.19\u3011\u65e0\u76d1\u7763\u5b66\u4e60<br \/> \u301010.21\u3011\u6ce8\u610f\u529b\u673a\u5236<br \/> \u56e0\u4e3a\u8ba1\u7b97\u8d44\u6e90\u6709\u9650\uff0c\u6240\u9700\u8981\u4ece\u4f17\u591a\u4fe1\u606f\u4e2d\u9009\u62e9\u5bf9\u5f53\u524d\u66f4\u6709\u7528\u7684\u4fe1\u606f\uff0c\u6709\u5229\u4e8e\u5e76\u884c\u8ba1\u7b97\uff1b\u89e3\u51b3RNN\u9057\u5fd8\u7684\u95ee\u9898<br \/> \u533a\u522b\uff1a<br \/> \u2460\u4f20\u7edf\u805a\u7c7b\u5c06\u6837\u672c\u8fdb\u884c\u5206\u7c7b<br \/> \u6ce8\u610f\u529b\u673a\u5236\u5c06\u7279\u5f81\u8fdb\u884c\u5206\u7c7b<br \/> \u2461CNN\u662fself-attention\u7684\u7279\u4f8b<br \/> \u2462RNN\u7684\u9057\u5fd8\u95ee\u9898\uff0cself-attention\u6709\u5929\u6daf\u82e5\u6bd4\u90bb\u7684\u7279\u6027<br \/> RNN\u53ea\u80fd\u4e00\u6b21\u5410\u4e00\u4e2a\u8f93\u51fa\uff0c\u4f46\u662fself-attention\u53ef\u4ee5\u5e76\u884c\u5410\u51fa\u4e00\u5217\u8f93\u51fa<br \/> \u2463Tom chase Jerry --&gt;\u2018\u2019\u6c64\u59c6\u2018\u2019\u2018\u2019\u8ffd\u9010\u2018\u2019\u2018\u2019\u6770\u745e\u2018\u2019<br \/> \u5728\u751f\u6210\u6770\u745e\u65f6tom chase jerry \u5bf9\u5176\u8d21\u732e\u90fd\u662f\u4e00\u6837\u7684\uff0c\u8fd9\u662f\u5206\u5fc3\u6a21\u578b\uff0c\u662f\u4e0d\u5408\u7406\u7684<br \/> self-attention\u53ef\u4ee5\u6709\u6743\u91cd\u7684\u751f\u6210\u6770\u745e\uff0c\u8054\u7cfb\u4e0a\u4e0b\u6587\u6709\u8bed\u5883<br \/> \u301010.29\u3011\u6b65\u9aa4\uff1a<br \/> \u2460key\u4e3a\u8f93\u5165tom;Query\u4e3a\u6c64\u59c6<br \/> \u8ba1\u7b97\u4e24\u8005\u76f8\u5173\u6027\u2014\u2014&gt;\u65b9\u6cd5\u6709\u70b9\u79ef(dot product:\u7528\u4e8e\u8ba1\u7b97\u4e24\u4e2a\u5411\u91cf\u7684\u5173\u7cfb\uff0c\u52a0\u5165\u6ca1\u6709\u5173\u7cfb\u5185\u79ef\u4e3a0\uff0c\u5728\u7a7a\u95f4\u4e0a\u8868\u793a\u5782\u76f4)\uff0c\u4f59\u5f26\u76f8\u4f3c\u5ea6<br \/> \u2461\u5bf91\u6b65\u9aa4\u7684\u5f97\u5206\u8fdb\u884csoftmax\u5f52\u4e00\u5316\u5f97\u5230\u6743\u91cd\u7cfb\u6570<br \/> \u2462\u7528\u6743\u91cd\u7cfb\u6570<\/em>Value\u7136\u540e\u6c42\u548c\u5f97\u5230attention value<br \/> \u4ee5\u4e0a\u4e09\u4e2a\u6b65\u9aa4\u4e2d\u7684q k v\u77e9\u9635\u53ef\u4ee5\u62fc\u8d77\u6765\u5e76\u884c\u8ba1\u7b97<br \/> \u301011.16\u3011\u72d7\u4e2d\u8d64\u5154<br \/> attention\u662f\u4e00\u79cd\u601d\u60f3\uff0c\u4e0d\u4f9d\u8d56\u7279\u5b9a\u7684\u6846\u67b6<br \/> \u4ee5\u9605\u8bfb\u7406\u89e3\u4e3a\u4f8b\uff0cQ\u662f\u95ee\u9898\uff08\u67e5\u8be2 \u53bb\u5339\u914d\uff09\uff0cK\uff08\u7d22\u5f15 \u88ab\u5339\u914d\uff09\u3001V\uff08\u5185\u5bb9\uff09\u662f\u539f\u59cb\u6587\u672c\uff0c\u901a\u8fc7\u8ba1\u7b97\u4e0eK\u7684\u76f8\u5173\u6027\u627e\u5230\u539f\u6587\u4e2d\u6700\u91cd\u8981\u7684\u90e8\u5206\uff0c\u901a\u8fc7V\u5f97\u5230\u7b54\u6848<br \/> \u4ee5\u6e23\u7537\u4ece\u5907\u80ce\u4e2d\u627e\u5bf9\u8c61\u4e3a\u4f8b\uff0cQ\u6765\u8868\u793a\u4ed6\u7684\u671f\u671b,\uff0c\u6e23\u7537\u9009\u5907\u80ce\u7684\u540c\u65f6\u3002\u5907\u80ce\u4e5f\u662f\u8981\u770b\u4ed6\u7684\u6761\u4ef6\u7684\uff0c\u6211\u4eec\u5c31\u7528K\u6765\u8868\u793a\u4ed6\u81ea\u8eab\u6761\u4ef6\u3002\u88ab\u5339\u914d\u5230\u7684\u5907\u80ce\u662fV\u3002\u65e0\u8bba\u662f\u6e23\u7537\u8fd8\u662f\u5907\u8102\uff0c\u90fd\u6709\u81ea\u5df1\u7684\u4e00\u5957Q\u3001K\u3001V\uff08\u8f93\u5165X\u4e58\u4ee5\u4e09\u4e2a\u6743\u91cd\u77e9\u9635\uff09\u3002<br \/> \u6e23\u7537\u8981\u5bfb\u627e\u81ea\u5df1\u7684Q\u548c\u5907\u80ce\u7684K\u76f8\u5173\u6027\u6700\u9ad8\u7684\uff0c\u8fd0\u7528\u70b9\u79ef\u7684\u65b9\u6cd5\u3002<br \/> \u7136\u540esoftmax(QK^T\/\u221adk\u4ee3\u8868K\u7684\u7ef4\u5ea6)\u4fdd\u6301\u68af\u5ea6\u7684\u7a33\u5b9a<\/p>\n<p>\u591a\u5934\u6ce8\u610f\u529b\u673a\u5236\uff1a\u4f7f\u7528\u591a\u79cd\u53d8\u6362\u7684\u751f\u6210\u7684Q,K,V\u8fdb\u884c\u8fd0\u7b97\uff0c\u5c06\u76f8\u5173\u6027\u7ed3\u8bba\u7ed3\u5408\u8d77\u6765\uff0c\u589e\u5f3a\u81ea\u6ce8\u610f\u529b\u7684\u6548\u679c<br \/> \u301011.28\u3011\u74dc\u6ce2\u725b\u6392<br \/> \u5728\u795e\u7ecf\u7f51\u7edc\u4e2d\u5f15\u5165\u6ce8\u610f\u529b\u673a\u5236\u6709\u5f88\u591a\u65b9\u6cd5\uff0c\u4ee5\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u4e3a\u4f8b\uff0c\u53ef\u4ee5\u5728\u7a7a\u95f4\u7ef4\u5ea6\u589e\u52a0\u5f15\u5165attention\u673a\u5236(\u5982inception\u7f51\u7edc\u7684\u591a\u5c3a\u5ea6\uff0c\u8ba9\u5e76\u8054\u7684\u5377\u79ef\u5c42\u6709\u4e0d\u540c\u7684\u6743\u91cd)\uff0c\u4e5f\u53ef\u4ee5\u5728\u901a\u9053\u7ef4\u5ea6(channel)\u589e\u52a0attention\u673a\u5236\uff0c\u5f53\u7136\u4e5f\u6709\u6df7\u5408\u7ef4\u5ea6\u5373\u540c\u65f6\u5728\u7a7a\u95f4\u7ef4\u5ea6\u548c\u901a\u9053\u7ef4\u5ea6\u589e\u52a0attention\u673a\u5236\u3002<br \/> 2017SE-net\u5c31\u662f\u4e00\u4e2a\u901a\u9053\u4e0a\u7684\u5e94\u7528\uff0c\u8fd9\u7bc7\u8bba\u6587\u5c31\u662f\u901a\u9053\u7ef4\u5ea6(channel-wise)\u589e\u52a0\u6ce8\u610f\u529b\u673a\u5236\uff0c\u5173\u952e\u7684\u4e24\u4e2a\u64cd\u4f5c\u662fsqueeze\u548cexcitation\uff0c\u6240\u4ee5\u8bba\u6587\u628a\u8fd9\u4e2aattention\u7ed3\u6784\u547d\u540d\u4e3aSE block\uff0cSE block\u662f\u4e3a\u4e86\u663e\u5f0f\u5730\u5b9e\u73b0\u7279\u5f81\u901a\u9053\u7684\u7684\u76f8\u4e92\u4f9d\u8d56\u5173\u7cfb\uff0c\u5c31\u662f\u8bf4\u5c31\u662f\u901a\u8fc7\u81ea\u52a8\u5b66\u4e60\u7684\u65b9\u5f0f\uff08\u7528\u53e6\u5916\u4e00\u4e2a\u65b0\u7684\u795e\u7ecf\u7f51\u7edc\u5b9e\u73b0\uff09\u83b7\u53d6\u5230\u6bcf\u4e2a\u7279\u5f81\u901a\u9053\u7684\u91cd\u8981\u7a0b\u5ea6\uff0c\u7136\u540e\u7528\u8fd9\u4e2a\u91cd\u8981\u7a0b\u5ea6\u53bb\u7ed9\u6bcf\u4e00\u4e2a\u7279\u5f81\u901a\u9053\u8d4b\u4e88\u4e00\u4e2a\u6743\u91cd\u503c\uff0c\u4ece\u800c\u8ba9\u795e\u7ecf\u7f51\u7edc\u91cd\u70b9\u5173\u6ce8\u67d0\u4e9b\u7279\u5f81\u901a\u9053\uff0c\u5373\u63d0\u5347\u5bf9\u5f53\u524d\u4efb\u52a1\u6709\u7528\u7684\u7279\u5f81\u901a\u9053\u5e76\u6291\u5236\u5bf9\u5f53\u524d\u4efb\u52a1\u7528\u5904\u4e0d\u5927\u7684\u7279\u5f81\u901a\u9053\u3002<br \/> \u6b65\u9aa4\uff1a<br \/> \u2460\u5728\u7b2c\u4e00\u4e2a\u5377\u79ef\u540e\u5148Squeeze\uff0c\u5177\u4f53\u662f\u4f7f\u7528\u5168\u5c40\u5e73\u5747\u6c60\u5316\uff08\u53ef\u4ee5\u62e5\u6709\u5168\u5c40\u89c6\u91ce\uff09\u538b\u7f29\u6210\u4e00\u7ef4<br \/> \u2461\u7136\u540e\u901a\u8fc7excitation\uff0c\u5177\u4f53\u662f\u901a\u8fc7Botleneck(\u4e24\u4e2a\u5168\u8fde\u63a5\u5c42)\u8f6c\u6362\u4e3a\u540c\u6837\u6570\u76ee\u7684\u6743\u91cd<br \/> \u2462\u4e4b\u540e\u518dScale\uff0c\u5177\u4f53\u662f\u5c06\u6743\u91cd\u52a0\u6743\u5230\u524d\u9762\u7684\u6bcf\u4e2a\u901a\u9053\u7684\u7279\u5f81\u4e0a<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/7b43e31347254add86c40047083d97f6.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c39\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c39\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u301011.29\u3011\u7231123\u54c8\u54c8<br \/> encoder\u7684\u6bcf\u4e00\u4e2a\u8f93\u51fa\u548cdecoder\u7684\u6bcf\u4e00\u4e2a\u9690\u85cf\u72b6\u6001<br \/> EO: encoder\u5404\u4e2a\u4f4d\u7f6e\u7684\u8f93\u51fa<br \/> H: decoder\u67d0\u4e00\u6b65\u7684\u9690\u542b\u72b6\u6001<br \/> FC:\u5168\u8fde\u63a5\u5c42<br \/> X: decoder\u7684\u4e00\u4e2a\u8f93\u5165<\/p>\n<p>score = FC(tanh(FC(EO) +FC(H))) [Bahdanau\u6ce8\u610f\u529b]\u5f97\u5230\u4e0eEO\u4e00\u6837\u7ef4\u5ea6\u8f93\u51fa<br \/> \u53e6\u4e00\u9009\u9879: score = EO<em>W<\/em>H [luong\u6ce8\u610f\u529b]<br \/> attention_weights = softmax(score, axis = 1)<br \/> context = sum(attention_weights * EO, axis = 1)<br \/> final_input = concat(context, embed(x))<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/610af65297774196b84f5a5f75d36dd7.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c40\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c40\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u301011.30\u3011NLP\u4ece\u5165\u95e8\u5230\u653e\u5f03<br \/> transformer\u4e2d<strong>encoder<\/strong><br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/b69dc481b53e4b0e9fd767514949cab9.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c41\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c41\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> 1.\u8f93\u5165\u7531\u4e24\u90e8\u5206\u7ec4\u6210\u2460embedding\u548c\u2461\u4f4d\u7f6e\u7f16\u7801<br \/> \u2460embedding\u662f\u6bcf\u4e00\u4e2a\u5b57\u8fdb\u884c\u7f16\u7801<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/33c45932585f447b80266a1e04caeb49.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c42\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c42\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u2461\u4f4d\u7f6e\u7f16\u7801<br \/> \u591a\u5934\u5e76\u884c\u5904\u7406\u65f6\u5ffd\u7565\u4e86\u4f4d\u7f6e\u4fe1\u606f<br \/> \u901a\u8fc7\u516c\u5f0f\u5bf9\u6bcf\u4e00\u4e2a\u5b57\u7684\u5411\u91cf\u52a0\u4e0a\u4f4d\u7f6e\u6570\u503c<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/4cf93583be52407187c6a80c4b6ffba4.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c43\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c43\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/076e392eee9145a7a5d8c4ed47b70b35.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c44\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c44\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/32f2b6226752414c8000c476ce4bccc0.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c45\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c45\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><strong>attention<\/strong><br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/2d44af7ceea44543ad555213b17e6818.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c46\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c46\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <strong>\u6b8b\u5dee\u548cLayerNorm<\/strong><br \/> \u5c06\u4f4d\u7f6e\u7f16\u7801\u540e\u7684X\u4e0eself-attention\u540e\u5f97\u5230\u7684Z\u76f8\u52a0\uff0c\u4ee5\u4fdd\u8bc1\u5f80\u540e\u5f97\u5230\u7684\u7ed3\u679c\u4e0d\u6bd4\u539f\u6765\u5dee<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/e05cedb340fe44e79c3f0626579b7183.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c47\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c47\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u4e3a\u4ec0\u4e48\u4e0d\u4f7f\u7528BN<br \/> \u2460\u56e0\u4e3aBN\u5728batchsize\u5c0f\u7684\u65f6\u5019\u5747\u503c\u548c\u65b9\u5dee\u4ee3\u8868\u4e0d\u4e86\u6574\u4f53\uff0c\u6548\u679c\u5f88\u5dee<br \/> \u2461RNN\u8f93\u5165\u7684\u5355\u8bcd\u662f\u52a8\u6001\u7684\uff0c\u6bcf\u4e2a\u5355\u8bcd\u7684\u957f\u5ea6\u4e0d\u540c\uff0c\u4e0d\u80fd\u6709\u6548\u7684\u5f97\u5230batchsize\u7684\u5747\u503c\u548c\u65b9\u5dee<br \/> \u6bd4\u5982\u524d\u4e5d\u4e2a\u6837\u672c\u5355\u8bcd\u6570\u91cf\u662f5\uff0c\u6700\u540e\u4e00\u4e2a\u6837\u672c\u5355\u8bcd\u6570\u91cf\u4e3a20<br \/> BN\u662f\u9488\u5bf9\u4e00\u4e2a\u5355\u8bcd\u53bb\u505a\u7f29\u653e\uff0c\u5728\u5176\u4ed6\u60c5\u51b5\u4e2d\u4ee3\u8868\u4f53\u91cd\uff0c\u8eab\u9ad8\u505a\u7f29\u653e\uff0c\u4e0d\u80fd\u591f\u8fc1\u79fb\u8fc7\u6765<br \/> LN\u662f\u9488\u5bf9\u4e00\u4e2a\u6837\u672c\u7684\u5355\u8bcd\u505a\u7f29\u653e,\u5bf9\u8fd9\u4e00\u53e5\u8bdd\u7684\u8bed\u4e49\u4fe1\u606f\u505a\u5747\u503c\u65b9\u5dee<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/5b9d81522277450ba6d0813fa560bceb.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c48\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c48\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> transformer\u4e2d<strong>Decoder<\/strong><br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/9603671616c547c1928c7abf68f82843.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c49\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c49\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> 1.mask\u5c31\u662f\u5bf9\u5f53\u524d\u8f93\u5165\u5355\u8bcd\u4e4b\u540e\u7684\u5355\u8bcd\u62b9\u6389<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/178f7a4d288948c5b3d5e860b870d1a8.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c50\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c50\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> 2.\u4ea4\u4e92\u5c42 encoder\u7684\u8f93\u51fa\u548cdecoder\u7684\u6bcf\u4e00\u5c42\u53bb\u505a\u4ea4\u4e92<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/23767a6b98eb4a87902f4a37f358bb92.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c51\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c51\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> encoder\u8f93\u51fa\u7684\u662fK,V\u77e9\u9635\uff0c\u548cdecoder\u7684\u6bcf\u4e00\u5c42\u7684Q\u77e9\u9635\u53bb\u505a\u4ea4\u4e92<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/871bfe117a3447b4aabfdcbc9d3b0ede.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c52\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c52\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u301012.1\u3011<br \/> transformer\u5e94\u7528;<br \/> 1.\u673a\u5668\u7ffb\u8bd1\u7c7b\u5e94\u7528-Encoder\u548cDecoder\u5171\u540c\u4f7f\u7528<br \/> 2.\u53ea\u4f7f\u7528Encoder\u7aef-\u6587\u672c\u5206\u7c7bBERT\u548c\u56fe\u7247\u5206\u7c7bVIT<br \/> 3.\u53ea\u4f7f\u7528Decoder\u7aef-\u751f\u6210\u7c7b\u6a21\u578b<\/p>\n<p>Teachferfocing\uff1a\u56e0\u4e3a\u5728\u89e3\u7801\u7aef\u8f93\u5165\u9700\u8981\u6839\u636e\u4e0a\u4e00\u4e2a\u8f93\u51fa\uff0c\u6240\u4ee5\u4e0d\u80fd\u5e76\u884c\uff0c\u4e3a\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u6211\u4eec\u5728\u8bad\u7ec3\u65f6\u628a\u771f\u5b9e\u6807\u7b7e\u4f5c\u4e3a\u8f93\u5165\u4ece\u800c\u8fbe\u5230\u5e76\u884c\u8bad\u7ec3\u7684\u6548\u679c<br \/> \u301012.3\u3011Vision Transformer<br \/> \u5728nlp\u4efb\u52a1\u4e2d\u6587\u5b57embdding\u6210tocken\u540e\u9001\u5165encoder<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/84b323e9ea4e4b42b290d61fa115321d.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c53\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c53\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u7c7b\u6bd4\u5230\u56fe\u50cf\u4e2d\uff0c\u5bf9\u56fe\u50cf\u5212\u5206\u6210patch<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/72d6b320dda3419aba2e48b354f6d3b5.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c54\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c54\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> 1.\u56fe\u7247\u5207\u5206\u4e3apatch\uff089\u4e2a16<em>16\uff09<br \/> 2. patch\u8f6c\u5316\u4e3aembedding<br \/> \u2460\u5148\u62c9\u5e73patch\u4e3a1\u7ef4\uff089\u4e2a256\uff09<br \/> \u2461\u5728\u5c06\u8fd9\u4e2a1\u7ef4\u957f\u5ea6\u6620\u5c04\u5230embdding\u7684\u957f\u5ea6\uff089\u4e2a768\uff09\uff0c\u5bf9\u5e94\u7c89\u8272\u6846\u6846\uff0c\u6709\u4e24\u79cd\u5b9e\u73b0\u65b9\u5f0f\uff1a\u5176\u4e00\u7528\u7ebf\u5f62\u5c42\uff0c\u5176\u4e8c\u7528768\u4e2a1<\/em>1\u5377\u79ef<br \/> 3.\u4f4d\u7f6eembedding\u548ctokens embedding\u76f8\u52a0<br \/> \u2460\u5148\u751f\u6210Classification\u7684token embedding\uff0c\u5bf9\u5e94\u7c89\u8272CLS\u203b<br \/> \u8fd9\u4e2a\u7b26\u53f7\u51fa\u73b0\u5728bert\u4e2d\uff0c\u4e0d\u662f\u5fc5\u987b\u52a0\u7684<br \/> \u2461\u518d\u751f\u6210\u6240\u6709\u5e8f\u5217\u7684\u4f4d\u7f6e\u7f16\u7801\uff0c\u5bf9\u5e94\u7d2b\u8272\u76840 1 2\u00b7\u00b7\u00b7\u00b7<br \/> \u2462\u7136\u540etonken+position\uff0c\u5bf9\u5e94\u7c89\u8272\u6846+\u7d2b\u8272\u6846<br \/> 4.\u8f93\u5165\u5230TRM\u6a21\u578b<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/7e624dafb3c14f33a6a93c5536fb7999.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c55\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c55\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u4e24\u70b9\u4e0d\u540c\uff1a\u2460Norm\u63d0\u524d\u4e86<br \/> \u2461\u6ca1\u6709pad\u64cd\u4f5c<br \/> 5.\u628a\u7b2c\u4e00\u4e2aCLS\u8f93\u51fa\u505a\u591a\u5206\u7c7b\u4efb\u52a1<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/6e03455750364505b988925c51088dd5.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c56\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c56\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u301012.13\u3011SwinTRM<br \/> \u521b\u65b0\u70b9\uff1a\u2460\u5728encoder\u4e2d\u505a\u4e86\u539a\u5904\u7406\uff0c\u964d\u4f4e\u5206\u8fa8\u7387\u589e\u52a0\u4e86\u611f\u53d7\u91ce<br \/> \u2461\u628a\u6ce8\u610f\u529b\u673a\u5236\u653e\u5728\u4e86\u7a97\u53e3\u4e2d<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/e319785a2c7547a6ba59642245914e41.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c57\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c57\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h5>\uff088\uff09\u738b\u6728\u5934\u6df1\u5ea6\u5b66\u4e60<\/h5>\n<p>\u301011.18\u3011<br \/> \u52a0\u5feb\u795e\u7ecf\u7f51\u7edc\u7684\u8bad\u7ec3\u901f\u5ea6\u6709\u4e24\u4e2a\u601d\u8def<br \/> \u51cf\u5c11\u6570\u636e\u91cf<br \/> \u4f18\u5316\u4e0b\u964d\u8def\u5f84\uff1a<br \/> \u7531\u4e8e\u8ba1\u7b97\u673a\u7b97\u68af\u5ea6\u65f6\u662f\u6709\u6b65\u957f\u7684\uff0c\u6240\u4ee5\u7ed9\u4f18\u5316\u5e26\u6765\u4e86\u53ef\u80fd\u6027<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/11b0fd7ea02141a0a31f12c77940c701.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c58\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c58\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u51cf\u5c11\u5b66\u4e60\u6b65\u957f\u662f\u4e0d\u80fd\u8fbe\u5230\u6548\u679c\u7684\uff0c\u56e0\u4e3a\u5b66\u4e60\u7387\u7684\u51cf\u5c11\u610f\u5473\u7740\u589e\u52a0\u5b66\u4e60\u6b21\u6570\uff0c\u5e26\u6765\u4e86\u66f4\u5927\u7684\u8ba1\u7b97\u91cf<br \/> \u2460\u628a\u68af\u5ea6\u5206\u6210\u4e0d\u540c\u7684\u5206\u91cf\u53bb\u8003\u8651<br \/> \u5f53\u524d\u8fd9\u4e00\u6b65\u9700\u8981\u66f4\u65b0\u7684\uff0c\u53bb\u8003\u8651\u4e0a\u4e00\u6b65\u60c5\u51b5\uff0c\u5047\u5982\u8003\u8651\u7684\u6b21\u6570\u8f83\u591a\u7684\u8bdd\u4f7f\u7528\u6307\u6570\u52a0\u6743\u79fb\u52a8\u5e73\u5747\u6cd5<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/3e40596e60a44260aba4ab2bf118ac81.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c59\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c59\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h5>\uff089\uff09\u5510\u5b87\u8fea\u6df1\u5ea6\u5b66\u4e60<\/h5>\n<p>\u301010.31\u3011\u6b8b\u5dee\u8fde\u63a5<br \/> \u4fdd\u8bc1\u6a21\u578b\u8bad\u7ec3\u81f3\u5c11\u4e0d\u6bd4\u539f\u6765\u5dee<br \/> \u5c06\u8f93\u5165x\u5206\u6210\u4e24\u4efd\uff0c\u4e00\u4efd\u7ecf\u8fc7\u7f51\u7edc\u6a21\u578b\u5904\u7406\uff0c\u4e00\u4efd\u4e0d\u7ecf\u8fc7\u7f51\u7edc\u6a21\u578b\u5904\u7406\u3002\u8ba9\u6a21\u578b\u81ea\u5df1\u5224\u65ad\u54ea\u4e00\u79cd\u60c5\u51b5loss\u6700\u5c0f\u3002<br \/> Decpder\uff1a<br \/> \u52a0\u5165\u4e86mask\u673a\u5236\uff0c\u628a\u5c06\u8981\u8f93\u5165\u7684self=attetion\u7684\u540e\u9762\u7684\u7ed9\u906e\u6321\u6389<br \/> \u301011.2\u3011\u8fc1\u79fb\u5b66\u4e60<br \/> \u4f7f\u7528\u516c\u8ba4\u7684\u8bad\u7ec3\u597d\u7684\u7f51\u7edc\u6a21\u578b\u548c\u6743\u91cd\u53c2\u6570\u8fdb\u884cwork<\/p>\n<h5>\uff0810\uff09\u9739\u96f3\u5427\u5566<\/h5>\n<p>\u301011.23\u3011<br \/> RNN\u4e24\u4e2a\u95ee\u9898\uff1a\u9057\u5fd8\u95ee\u9898\u548ch\u7684\u9690\u85cf\u72b6\u6001\u53ea\u80fd\u4e00\u4e2a\u4e00\u4e2a\u8ba1\u7b97<br \/> Transform\u89e3\u51b3\u4ee5\u4e0a\u4e24\u4e2a\u95ee\u9898<br \/> \u6b65\u9aa4\uff1a<br \/> \u2460\u8f93\u5165x\u505aEmbedding\u8f6c\u6210\u9ad8\u7ef4\u5411\u91cfa<br \/> \u2461a\u5206\u522b\u4e0eWq,Wk,Wv(\u662f\u5171\u4eab\u7684\u6743\u91cd\uff09\u76f8\u4e58\u5f97\u5230q k v<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/62098c9a763c48668f488c4905f94418.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c60\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c60\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u2462\u5c06q \u4e0ek\u8fdb\u884c\u5339\u914d\uff08\u70b9\u79ef\u8ba1\u7b97\u76f8\u5173\u6027\uff09\u5f97\u5230\u03b1 \u5206\u6570<br \/> \u2463\u03b1\u7ecf\u8fc7soft-max\u5f97\u5230\u6bcf\u4e00\u4e2av\u4e0a\u7684\u6743\u91cd\uff0c\u8d8a\u5927\u8d8a\u5173\u6ce8\u76f8\u5e94\u7684v<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/1ae383a03ceb4859812e9cebf214d5c8.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c61\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c61\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u2464\u5c06\u5f97\u5230\u7684\u03b1_hat\u4e0ev\u76f8\u4e58\u5f97\u5230b<img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/78b9f65a848a4959bf58158261fbd091.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c62\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c62\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/003680a9d3c747299fe7040d38066ba6.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c63\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c63\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<p>Multi-head Self-Attention<br \/> \u4f18\u70b9\u662f\u4f18\u70b9:<br \/> \u2460\u6269\u5c55\u4e86\u6a21\u578b\u4e13\u6ce8\u4e8e\u4e0d\u540c\u4f4d\u7f6e\u7684\u80fd\u529b\u3002<br \/> \u2461\u7ed9\u51fa\u4e86\u6ce8\u610f\u529b\u5c42\u7684\u591a\u4e2a\u201c\u8868\u793a\u5b50\u7a7a\u95f4\u201d\u3002<br \/> \u4e24\u4e2a\u5934\u7684\u60c5\u51b5\u4e0b(\u4e5f\u5c31\u662f\u4e24\u5957\u6743\u91cd\u77e9\u9635)<br \/> \u2460\u5728self-attention\u7684\u7b2c\u4e09\u6b65\u5c06q,k,v\u6839\u636e\u5934\u6570\u5747\u5206\u4e3a2<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/49acf71b791944039b9b7fe7f3220135.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c64\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c64\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u2461\u5c06\u7b2c\u4e8c\u4e2a\u6807\u53f7\u4e3a1\u7684q,k,v\u5f52\u4e8ehead1\uff0c\u5b9e\u73b0\u5747\u5206<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/be3738972658428cacb16397794e44f1.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c65\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c65\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u2462\u5bf9\u4e8e\u6bcf\u4e00\u4e2a\u5934\u7684q,k,v\u505aself-attention\u64cd\u4f5c<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/ab9c7fb0aa54456597894d5aedd3b6ea.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c66\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c66\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u2463\u5c06\u5f97\u5230\u7684b\u7b2c\u4e00\u4e2a\u6807\u53f7\u76f8\u540c\u7684\u8fdb\u884c\u62fc\u63a5<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/0c412c5be84040fd845c381adb26b0a4.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c67\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c67\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u2464\u5c06b\u62fc\u63a5\u4e58\u4ee5Wo\uff08\u4fdd\u6301\u8f93\u5165\u8f93\u51fa\u7ef4\u5ea6\u4e0d\u53d8\uff09<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/ab7c942706de4ed8a54ac22cb71dafc7.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c68\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c68\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u4e4b\u540e\u9700\u8981\u4e3b\u52a8\u5728\u8f93\u5165\u65f6\u52a0\u4e0a\u4f4d\u7f6e\u7f16\u7801\u4fe1\u606f<br \/> \u5728\u89e3\u7801\u5668\u4e2d\u8fd8\u8981\u52a0\u4e0amask\uff0c\u6765\u906e\u6321\u4f4f\u9884\u6d4b\u5f53\u524d\u503c\u4e4b\u540e\u7684\u503c<\/p>\n<p>\u301012.11\u3011Swin-Transformer<br \/> \u4e0eVit\u7684\u533a\u522b\uff1a<br \/> 1.\u5f15\u5165CNN\u4e2d\u5e38\u7528\u7684\u5c42\u6b21\u5316\u6784\u5efa\u65b9\u5f0f\u6784\u5efa\u5c42\u6b21\u5316Transformer (4\u500d\u4e0b\u91c7\u6837\uff0c8\u500d\u4e0b\u91c7\u6837\uff0c16\u500d\u4e0b\u91c7\u6837)<br \/> 2.\u5f15\u5165locality\u601d\u60f3\uff0c\u5bf9\u65e0\u91cd\u5408\u7684window\u533a\u57df\u5185\u8fdb\u884cself-attention\u8ba1\u7b97\uff0c\u89e3\u51b3transformer\u8fc1\u79fb\u81f3CV\u4e0a\u7684scale\u548c\u5206\u8fa8\u7387\u7684\u95ee\u9898\u3002(\u5bf9\u6bcf\u4e00\u4e2apatch\u8fdb\u884c\u4e86\u5206\u5272)<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/c5862a7d280f4b3d9428d84255023610.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c69\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c69\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u6574\u4e2aSwin Transformer\u67b6\u6784\uff0c\u548cCNN\u67b6\u6784\u975e\u5e38\u76f8\u4f3c\uff0c\u6784\u5efa\u4e864\u4e2astage\uff0c\u6bcf\u4e2astage\u4e2d\u90fd\u662f\u7c7b\u4f3c\u7684\u91cd\u590d\u5355\u5143\u3002<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/683b4dee167d4122a24c9ec52c0af299.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c70\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c70\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> 1.\u548cViT\u7c7b\u4f3c\uff0c\u901a\u8fc7patch partition\u5c06\u8f93\u5165\u56fe\u7247HxWx3(\u4e0b\u9762\u56fe\u7247\u4ee3\u8868\u4e00\u4e2apatch\u7684\u4e00\u4e2a\u989c\u8272\u901a\u9053)\u5212\u5206\u4e3a\u4e0d\u91cd\u5408\u7684patch\u96c6\u5408\uff0c\u5176\u4e2d\u6bcf\u4e2apatch\u5c3a\u5bf8\u4e3a4x4\uff0c\u90a3\u4e48\u6bcf\u4e2apatch\u7684\u7279\u5f81\u7ef4\u5ea6\u4e3a4x4x3=48\uff0cpatch\u5757\u7684\u6570\u91cf\u4e3aH\/4 x W\/4\uff1b<br \/> Swin Transformer\u548cViT\u5212\u5206patch\u7684\u65b9\u5f0f\u7565\u6709\u4e0d\u540c\uff0cViT\u662f\u5148\u786e\u5b9apatch\u7684\u6570\u91cf\uff0c\u7136\u540e\u8ba1\u7b97\u786e\u5b9a\u6bcf\u4e2apatch\u7684\u5c3a\u5bf8\uff0c\u800cSwin Transformer\u662f\u5148\u786e\u5b9a\u6bcf\u4e2apatch\u7684\u5927\u5c0f\uff0c\u7136\u540e\u8ba1\u7b97\u786e\u5b9apatch\u6570\u91cf\u3002\u8fd9\u4e2a\u8bbe\u8ba1\u731c\u6d4b\u662f\u4e3a\u4e86\u65b9\u4fbfSwin Transformer\u7684\u5c42\u7ea7\u6784\u5efa\u3002<br \/> stage1\u90e8\u5206\uff0c\u5148\u901a\u8fc7\u4e00\u4e2alinear embedding\u5c06\u8f93\u5212\u5206\u540e\u7684patch\u7279\u5f81\u7ef4\u5ea6\u53d8\u6210C\uff0c\u7136\u540e\u9001\u5165Swin Transformer Block\uff1b<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/af6404b9f29c4b32b67142db91736315.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c71\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c71\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> 2.stage2-stage4\u64cd\u4f5c\u76f8\u540c\uff0c\u5148\u901a\u8fc7\u4e00\u4e2apatch merging\uff0c\u5c06\u8f93\u5165\u6309\u71672x2\u7684\u76f8\u90bbpatches\u5408\u5e76\uff0c\u8fd9\u6837\u5b50patch\u5757\u7684\u6570\u91cf\u5c31\u53d8\u6210\u4e86H\/8 x W\/8\uff0c\u7279\u5f81\u7ef4\u5ea6\u5c31\u53d8\u6210\u4e864C\uff0c\u7136\u540e\u518d\u5c06\u7279\u5f81\u538b\u7f29\u52302C<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/6f0faf0e9de2442ea5cbabd1ff7ae11f.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c72\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c72\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> 3.\u4e24\u4e2a\u8fde\u7eed\u7684Swin Transformer Block\u3002\u4e00\u4e2aSwin Transformer Block\u7531\u4e00\u4e2a\u5e26\u4e24\u5c42MLP\u7684shifted window based MSA\u7ec4\u6210\u3002\u5728\u6bcf\u4e2aMSA\u6a21\u5757\u548c\u6bcf\u4e2aMLP\u4e4b\u524d\u4f7f\u7528LayerNorm(LN)\u5c42\uff0c\u5e76\u5728\u6bcf\u4e2aMSA\u548cMLP\u4e4b\u540e\u4f7f\u7528\u6b8b\u5dee\u8fde\u63a5\u3002<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/13264bee4cb141d4a6d17d1a498e5c16.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c73\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c73\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> 3.1\u5176\u4e2dW-MSA\u662fWindows Multi-head Self-Attention<br \/> \u662f\u5c06oatch\u5206\u62102*2\u7684window \u7136\u540e\u6bcf\u4e2awindow\u4e2d\u7684\u50cf\u7d20\u8fdb\u884cself-attention\uff0c\u7a97\u53e3\u4e4b\u95f4\u4e0d\u8fdb\u884c\u4fe1\u606f\u4ea4\u4e92 \u8fd9\u6837\u505a\u7684\u76ee\u7684\u53ef\u4ee5\u51cf\u5c11\u8ba1\u7b97\u91cf \u7f3a\u70b9\u662f\u611f\u53d7\u91ce\u53d8\u5c0f\uff0c\u6ca1\u6709\u5168\u5c40\u7684\u4fe1\u606f\u5173\u6ce8<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/c702531654ee48fc8898d0922d4436bc.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c74\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c74\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> 3.2SW-MSA\u662fShifted Windows Multi-Head Self-Attention\uff08swin\u7f29\u5199\uff09<br \/> \u662f\u5728W-MSA\u5c42\u6b21\u57fa\u7840\u4e0a\uff08\u5728\u4e24\u4e2a\u8fde\u7eed\u7684Swin Transformer Block\u4e2d\u4ea4\u66ff\u4f7f\u7528W-MSA\u548cSW-MSA\uff09\u5411\u4e0b\u5411\u53f3\u504f\u79fb\u7684Windows\uff0c\u76ee\u7684\u662f\u4e3a\u4e86\u5b9e\u73b0\u4e0d\u540cwindow\u4e4b\u95f4\u7684\u4fe1\u606f\u4ea4\u4e92\uff0c\u79fb\u52a8window\u7684\u5212\u5206\u65b9\u5f0f\u4f7f\u4e0a\u4e00\u5c42\u76f8\u90bb\u7684\u4e0d\u91cd\u5408window\u4e4b\u95f4\u5f15\u5165\u8fde\u63a5\uff0c\u5927\u5927\u7684\u589e\u52a0\u4e86\u611f\u53d7\u91ce\u3002<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/c7fb0d3faf3d42ddb720950754d2ca39.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c75\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c75\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u6839\u636e\u4e0a\u56fe\uff0c\u53ef\u4ee5\u53d1\u73b0\u901a\u8fc7\u5c06\u7a97\u53e3\u8fdb\u884c\u504f\u79fb\u540e\uff0c\u7531\u539f\u6765\u76844\u4e2a\u7a97\u53e3\u53d8\u62109\u4e2a\u7a97\u53e3\u4e86\u3002\u540e\u9762\u53c8\u8981\u5bf9\u6bcf\u4e2a\u7a97\u53e3\u5185\u90e8\u8fdb\u884cMSA\uff0c\u8fd9\u6837\u505a\u611f\u89c9\u53c8\u53d8\u9ebb\u70e6\u4e86\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u9ebb\u70e6\uff0c\u4f5c\u8005\u53c8\u63d0\u51fa\u800c\u4e86Efficient batch computation for shifted configuration\u3002<br \/> \u5177\u4f53\u7684\u505a\u6cd5\u662f\u5c06\u5207\u5206\u7684\u5c0f\u5757\u76f8\u4e92\u62fc\u63a5\uff0c\u7ec4\u6210\u4e0e\u539fpatch\u76f8\u540c\u7684\u5927\u5c0f\u3002<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/f294d8d3b57947e7ae6cccda498326c3.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c76\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c76\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> 3.2.1\u5176\u4e2d\u7b2c\u4e00\u6b65\u5c31\u662f\u5c06\u4e0a\u9762\u7b2c\u4e00\u5217\u653e\u5728\u6700\u4e0b\u9762\uff0c\u7136\u540e\u5c06\u5de6\u8fb9\u7b2c\u4e00\u5217\u653e\u5728\u6700\u53f3\u8fb9<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/7d24af28e73b4d8caaf28376ab8c9a90.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c77\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c77\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u301012.20\u3011\u6df7\u6dc6\u77e9\u9635Confusion Matrix<br \/> \u6df7\u6dc6\u77e9\u9635\u662f\u8bc4\u5224\u6a21\u578b\u7ed3\u679c\u7684\u4e00\u79cd\u6307\u6807\uff0c\u5c5e\u4e8e\u6a21\u578b\u8bc4\u4f30\u7684\u4e00\u90e8\u5206\uff0c\u5e38\u7528\u4e8e\u8bc4\u5224\u5206\u7c7b\u5668\u6a21\u578b\u7684\u4f18\u52a3\u3002<br \/> \u6a2a\u5750\u6807\u662f\u771f\u5b9e\u6807\u7b7e\uff0c\u7eb5\u5750\u6807\u662f\u9884\u6d4b\u6807\u7b7e<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/ea1e545140c14f6e8981a8857a0dc18f.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c78\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c78\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u301012.21\u3011ROC\u66f2\u7ebf Receiver OpERATOR Characteristic<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/6d0e846738e7478895101c1a12fea272.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c79\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c79\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h5>\uff0811\uff09leo\u5728\u8fd9<\/h5>\n<p>\u301012.29\u3011\u6df7\u6dc6\u77e9\u9635<br \/> \u4ee5\u4e8c\u5206\u7c7b\u4e3a\u4f8b\u6709\u4ee5\u4e0b\u56db\u79cd\u60c5\u51b5\uff1a<br \/> \u9884\u6d4b\u6b63\u786e\u4e0e\u5426 ; \u9884\u6d4b\u4e3a\u6b63\uff08pssitive\uff09\u4e3a\u8d1f(negative)<br \/> \u771f\u5b9e\u6b63 \u9884\u6d4b\u6b63 TP<br \/> \u771f\u5b9e\u6b63 \u9884\u6d4b\u8d1f FN<br \/> \u771f\u5b9e\u8d1f \u9884\u6d4b\u6b63 FP<br \/> \u771f\u5b9e\u8d1f \u9884\u6d4b\u8d1f TN<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/760a06e9dbc9471aa869ab91e06e6033.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c80\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c80\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u6027\u80fd\u6307\u6807\uff1a<br \/> \u2460\u6b63\u786e\u7387ACC<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/2b880ff4800844ad8fd668dab5ace35c.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c81\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c81\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u53ea\u770b\u6b63\u786e\u7387\u4f1a\u6709<br \/> \u2461\u7cbe\u786e\u7387PPV\u4e5f\u53eb\u67e5\u51c6\u7387<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/fa321d6a9eb741aeb1553cf438c4ac7d.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c82\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c82\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u5206\u6bcd\u6240\u6709\u9884\u6d4b\u7ed3\u679c\u90fd\u662f\u6b63\uff0c\u4ee3\u8868\u4f60\u505a\u6b63\u4f8b\u6240\u6709\u9009\u9879\u4e2d\u6b63\u786e\u7684\u6bd4\u4f8b<br \/> \u2462\u53ec\u56de\u7387\uff08\u654f\u611f\u5ea6\uff09\u4e5f\u53eb\u67e5\u5168\u7387<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/f56e482660f840008a60dc30ade4da4b.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c83\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c83\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u5206\u6bcd\u90fd\u662f\u771f\u5b9e\u60c5\u51b5\u4e0b\u7684\u6b63\u4f8b<br \/> \u2463f1 score<br \/> \u4e3a\u4e86\u6bd4\u8f83\u6a21\u578b\u95f4\u6027\u80fd \u53ef\u4f7f\u7528f1 score\u5b83\u53ef\u4ee5\u7efc\u5408\u8003\u8651\u5230\u67e5\u51c6\u7387\u548c\u67e5\u5168\u7387<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/bf75154a11204edb930ab5f4247a91ff.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c84\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c84\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> f1 score\u8d8a\u9ad8\u6a21\u578b\u6027\u80fd\u8d8a\u4f18\u79c0<br \/> \u2464\u5047\u8bc1\u5229\u7387 fpr<br \/> fpr\u8868\u793a\u9519\u8bef\u7684\u9884\u6d4b\u4e3a\u6b63\u7684\u6570\u91cf \u5360 \u539f\u672c\u4e3a\u8d1f\u7684\u6570\u91cf\u7684\u6bd4\u4f8b<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/1b2b0a5c83374fd2b368e13a37365e62.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c85\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c85\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u2465\u771f\u6b63\u5229\u7387tpr \u4e5f\u53eb1-\u7279\u5f02\u6027<br \/> \u4e0e\u53ec\u56de\u7387\u76f8\u540c<br \/> tpr\u8868\u793a\u6b63\u786e\u7684\u9884\u6d4b\u4e3a\u6b63\u7684\u6570\u91cf \u5360 \u539f\u672c\u6b63\u7684\u6570\u91cf\u7684\u6bd4\u4f8b<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/5b336183eb264abca7bc449f972e6cd3.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c86\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c86\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> ROC\u66f2\u7ebf<br \/> \u5168\u79f0\u4e3a\u53d7\u8bd5\u8005\u5de5\u4f5c\u7279\u5f81\u66f2\u7ebf\u4ed6\u6765\u81ea\u4e8e\u4e8c\u6218\u96f7\u8fbe\u4fe1\u53f7\u5206\u6790<br \/> ROC\u66f2\u7ebf\u4e2d\u6a2a\u4e2d\u5750\u6807\u5206\u522b\u4e3afpr\u548ctpr \u5b83\u548cpr\u66f2\u7ebf\u4e00\u6837\u53ef\u53cd\u6620\u6a21\u578b\u5206\u7c7b\u80fd\u529b<br \/> \u7ed8\u5236\u6b65\u9aa4\u5982\u4e0b<br \/> 1.\u6240\u6709\u6837\u672c\u6309\u6982\u7387\u9012\u51cf\u6392\u5e8f<\/p>\n<p>\u539f\u672c\u7c7b\u522b:\u6b63\u9884\u6d4b\u6982\u7387:0.95<br \/> \u539f\u672c\u7c7b\u522b:\u6b63\u9884\u6d4b\u6982\u7387:0.86<br \/> \u539f\u672c\u7c7b\u522b:\u8d1f\u9884\u6d4b\u6982\u7387:0.64<br \/> \u539f\u672c\u7c7b\u522b:\u6b63\u9884\u6d4b\u6982\u7387:0.40<br \/> \u539f\u672c\u7c7b\u522b:\u8d1f\u9884\u6d4b\u6982\u7387:0.35<\/p>\n<p>2.\u9608\u503c\u4ece1\u52300\u53d8\u5316\u8ba1\u7b97\u5404\u4e2a\u9608\u503c\u4e0b\u7684fpr\u548ctpr<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/fa2f3873aeb2452dab418fdb1b04b59f.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c87\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c87\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> 3.\u5c06\u6570\u503c\u7ed8\u5236\u4e8e\u76f4\u89d2\u5750\u6807\u7cfb\u4e2d<\/p>\n<p>\u4e3e\u4f8b\uff1a<br \/> \u5047\u8bbe\u6709\u4e94\u4e2a\u6837\u672c\u77e5\u9053\u5176\u539f\u672c\u7c7b\u578b\u4ee5\u53ca\u6a21\u578b\u9884\u6d4b\u51fa\u7684\u6982\u7387\u7ed3\u679c<br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/dad5ec236b1e481a9d1e4dbf2dae1f53.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c88\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c88\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/27c170ad51c84e0187c186d479ecd665.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def (https:\/\/mushiming.com\/)  \u7b2c89\u5f20\" title=\"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def  \u7b2c89\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h5>\uff089\uff09\u4f5c\u4e1a<\/h5>\n<p>\u301011.2\u3011\u4eca\u65e5\u5b66\u4e60\u5230\u7b2c\u4e00\u6b21\u642d\u5efaCNN\u65f6\u7684\u7591\u60d1\uff1b\u2460\u5e26\u53c2\u6570\u8ba1\u7b97\u7684\u7b97\u4f5c\u4e00\u5c42\u2461\u8f93\u51fa\u5c42\u7b97\u4e00\u5c42\u2462\u6fc0\u6d3b\u5c42\uff0c\u6c60\u5316\u5c42\u4e0d\u7b97\u4e00\u5c42<br \/> \u30108.3\u3011\u622a\u6b62\u6b64\uff0c\u7b2c\u4e00\u6b21\u5c0ffashion_mnist\u4f5c\u4e1a\u5b8c\u6210\u3002\u5168\u7a0b\u590d\u4e60<br \/> \u30108.5\u3011\u51c6\u5907\u7b2c\u4e8c\u6b21UCI-HAR\u6570\u636e\u7684\u4f5c\u4e1a<br \/> \u91c7\u96c6\u7684\u662f\u4e00\u7ef4\u7684\u65f6\u95f4\u5e8f\u5217\u7684\u6570\u636e\uff0c\u600e\u4e48\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u5462\uff1f<br \/> \u5982\u4f55\u5c06\u6570\u636e\u8f6c\u5316\u6210npy\u6587\u4ef6\uff1f<br \/> \u30108.6\u3011csv\u662fComma-Separated Values\u7684\u7f29\u5199\uff0c\u662f\u7528\u6587\u672c\u6587\u4ef6\u5f62\u5f0f\u50a8\u5b58\u7684\u8868\u683c\u6570\u636e<br \/> \u5217\u8868\u89e3\u6790\uff1a<br \/> <strong>[x for x in range(5)] # [0, 1, 2, 3, 4]<\/strong><br \/> l1 = [1,2,3,4]<br \/> [ x*2\u662f\u8868\u8fbe\u5f0f for x in l1] #[2,4,6,8]<br \/> replace\u8868\u793a\u66ff\u4ee3<br \/> strip\uff08\uff09\u7a7a\u53c2\u6570\u8868\u793a\u9ed8\u8ba4\u5220\u9664\u5f00\u5934\u548c\u7ed3\u5c3e\u7a7a\u767d\u7b26<br \/> split\u8868\u793astr\u5b57\u7b26\u4e32\u7684\u5206\u79bb\uff0c\u5373\u901a\u8fc7\u5355\u7a7a\u683c\u6765\u8fdb\u884c\u6570\u636e\u7684\u5206\u79bb\uff0c\u76f8\u5f53\u4e8e\u5728Excel\u4e2d\u7684\u7a7a\u683c\u5206\u9694\u65b9\u5f0f\u3002<br \/> np.transpose\uff1a\u4ea4\u63620,1\uff0c2\u8f74<br \/> np.asarray<br \/> \u5c06\u7ed3\u6784\u6570\u636e\u8f6c\u5316\u4e3andarray\u3002<br \/> get_dummies<br \/> \u662f\u5229\u7528pandas\u5b9e\u73b0one hot encode\u7684\u65b9\u5f0f<br \/> \u7531\u4e8ePytorch\u9ed8\u8ba4\u56fe\u7247\u6570\u636e\u683c\u5f0f\u4e3a[n, c, h, w]\u3001rgb\uff0c\u56e0\u6b64\u82e5\u6570\u636e\u96c6\u4e3a[n, h, w, c]\u683c\u5f0f\u65f6\u9700\u8981\u8fdb\u884c\u8f6c\u6362\uff1a<br \/> \u30108.7.8\u3011\u89e3\u51b3\u4e00\u822c\u6027\u62a5\u9519<br \/> \u30108.9\u3011\u4ee5\u4e0b\u51fd\u6570\u7684\u5e94\u7528\u8bb2\u89e3\u5728HAR_CNN\u4e2d<br \/> print(np.array(a).shape)<br \/> TensorDataset(\uff09<br \/> summary()<br \/> transpose()<br \/> \u5b8c\u6210UCI_HAR_CNN\u4f5c\u4e1a<br \/> \u30108.10\u3011\u8bad\u7ec3\u7f51\u7edc\u65f6\u4e0d\u4e00\u5b9a\u662f\u8f6e\u6570\u8d8a\u591a\u8d8a\u597d\uff0c\u89c2\u5bdf\u6d4b\u8bd5\u66f2\u7ebf\uff0c\u6709\u53ef\u80fd\u63d0\u524d\u51fa\u73b0\u7cbe\u5ea6\u6700\u5927\u503c\uff0c\u7136\u540e\u8fc7\u5ea6\u8bad\u7ec3\u5bfc\u81f4\u8fc7\u62df\u5408\u3002<br \/> \u30108.11\u3011\u4ecetxt\u5bfc\u5165\u6570\u636e\u7ed8\u5236\u6563\u70b9\u56fe<br \/> \u30108.12\u3011\u4e86\u89e3WISDM\u6570\u636e\u96c6<br \/> \u30108.13\u3011Read_csv()\u8bfb\u53d6\u6587\u4ef6<br \/> python dropna()\u6e05\u6d17\u6570\u636e\uff0c\u5220\u9664\u6587\u4ef6\u65e0\u6548\u503c<br \/> np.std\uff08\uff09\u8ba1\u7b97\u6807\u51c6\u5dee \u53ef\u4ee5\u662f\u67d0\u4e00\u5217<br \/> \u5f52\u4e00\u5316\u662f\u4f7f\u5f97\u9884\u5904\u7406\u6570\u636e\u5728\u4e00\u5b9a\u7684\u8303\u56f4\uff0c\u6d88\u9664\u5947\u5f02\u503c\u5f71\u54cd<br \/> \u4f5c\u7528\uff1a\u52a0\u5feb\u8bad\u7ec3\u7f51\u7edc\u7684\u6536\u655b\u6027<br \/> \u30108.14\u3011\u6ed1\u52a8\u7a97\u53e3<br \/> \u5e8f\u5217\u6570\u636e\u4e2d\u67d0\u4e00\u70b9\u7684\u503c\u56e0\u4e3a\u95f4\u9694\u592a\u5c0f\u662f\u77ac\u65f6\u503c\u4e0d\u80fd\u4ee3\u8868\u5f53\u65f6\u60c5\u51b5<br \/> \u56e0\u6b64\u6211\u4eec\u9700\u8981\u6839\u636e\u56fa\u5b9a\u7684\u7a97\u53e3\u5927\u5c0f\u9009\u53d6\u6570\u636e\u5305\u542b\u8fd9\u4e00\u70b9\u7684\u533a\u57df\uff0c\u8ba1\u7b97\u5176\u5e73\u5747\u503c\uff0c\u4f7f\u5f97\u6570\u636e\u66f4\u5e73\u7a33\u4e00\u4e9b<br \/> yield\uff08\uff09\u6682\u505c\u540e\u9762\u8bed\u53e5\u6267\u884c\uff0c\u5c06\u5f53\u524d\u7ed3\u679c\u8fd4\u56de\uff0c\u7136\u540e\u7ee7\u7eed\u6267\u884c\u4e0b\u9762\u8bed\u53e5\uff1b\u4e0ereturn\u4e0d\u540c\uff0c\u6267\u884c\u5b8c\u6240\u6709\u8bed\u53e5\u540e\u8fd4\u56de\u6700\u7ec8\u503c<br \/> \u751f\u6210\u5668\u51fd\u6570<br \/> \u751f\u6210\u5668<br \/> \u8fed\u4ee3\u5668<br \/> \u30108.15\u3011hstack()\u3001vstack()<br \/> \u5c06\u751f\u6210\u7684x,y,z\u4e09\u8f74\u6570\u636e\u6a2a\u5411\u5408\u5e76<br \/> \u7136\u540e\u5c06\u6ed1\u52a8\u7a97\u53e3\u7eb5\u5411\u5408\u5e76<br \/> \u30108.16\u3011np.randm.rand(n)<br \/> \u8fd4\u56den\u4e2a\u6b63\u6001\u5206\u5e03\u4e2d\u7684\u503c<br \/> np.randm.rand(n)&lt;0.7 \u8fd4\u56de\u4e00\u7ec40.7\u6bd4\u7387\u7684true<br \/> \u30108.18\u3011round()\u56db\u820d\u4e94\u5165\u51fd\u6570<br \/> \u30108.21\u3011\u4e86\u89e3\u4e86\u6ed1\u7a97\uff0c\u548c\u600e\u4e48\u53bb\u6ed1\u7a97<br \/> \u600e\u4e48\u53bb\u7ed9\u6ed1\u7a97\u7684\u6570\u636e\u52a0\u4e0a\u6807\u7b7e<br \/> \u600e\u4e48\u5212\u5206\u6570\u636e\u96c6\u548c\u6d4b\u8bd5\u96c6<br \/> \u600e\u4e48\u53bb\u5c06string\u7684\u6807\u7b7e\u8f6c\u6362\u6210\u6570\u5b57\u7684\u6807\u7b7e\u8fdb\u884c\u8bad\u7ec3<br \/> \u30109.3\u3011\u51c6\u5907\u7b2c\u4e09\u6b21cifar\u4f5c\u4e1a\uff0c\u4f7f\u7528cnn,vgg,ResNet18<br \/> \u91cd\u5199\u52a0\u8f7d\u4ee3\u7801\uff0c\u4fee\u6539\u5377\u79ef\u5c42\u7f51\u7edc\u53c2\u6570\uff0c\u89e3\u51b3\u6a21\u578b\u6ca1\u6709\u5b9e\u4f8b\u5316\u62a5\u9519<br \/> \u30109.4.5\u3011\u5b66\u4e60vgg\u7f51\u7edc<br \/> \u662f\u6307vgg16,\u5177\u670916\u5c42\u7684\u6df1\u5ea6\u5b66\u4e60\u7f51\u7edc<br \/> \u8dd1\u4e865\u4e2aepoch \u7cbe\u5ea686%<\/p>\n<p>\u30109.6\u3011\u56e0\u4e3avgg16\u7b14\u8bb0\u672c\u8dd1\u8d77\u6765\u5df2\u7ecf\u5403\u529b\uff0c\u5b66\u4e60\u4e91\u670d\u52a1\u5668\u8bad\u7ec3<br \/> \u8fdc\u7a0b\u8fde\u63a5\u670d\u52a1\u5668\uff0c\u4e0a\u4f20\u6587\u4ef6<br \/> \u30109.7\u3011\u4e91\u4e0a\u89e3\u538b\u7f29\uff0c\u8fd0\u884cpy\u6587\u4ef6<br \/> \u30109.9\u3011\u4f7f\u7528GPU\u8bad\u7ec3<br \/> \u30109.10\u3011\u4e91\u4e0ascreen\u64cd\u4f5c<br \/> \u30109.19\u3011\u51c6\u5907\u7b2c<strong>\u56db\u6b21<\/strong>oppotunity\u6570\u636e\u96c6\u4f5c\u4e1a<br \/> \u6574\u4f53\u6d4f\u89c8<br \/> \u30109.24\u3011\u51c6\u5907\u7b2c\u4e94\u6b21\u4f5c\u4e1a<br \/> \u4e86\u89e3\u6df1\u5ea6\u53ef\u5206\u79bb\u5377\u79ef<br \/> \u5c06\u6807\u51c6\u5377\u79ef\u5206\u6210\u6df1\u5ea6\u5377\u79ef\u548c\u9010\u70b9\u5377\u79ef<br \/> \u30109.27\u3011Mobilenetv1\u4ee3\u7801\u5b9e\u73b0<br \/> \u30109.28\u3011Mobilenetv1\u8dd1Fashionmnist<br \/> \u30109.29\u3011\u642d\u5efa\u6df1\u5ea6\u4e09\u5c42\u53ef\u5206\u79bb\u5377\u79ef\u795e\u7ecf\u7f51\u7edc<br \/> \u4f7f\u7528pycharm\u4e91\u8bad\u7ec3CIFAR10<br \/> \u301010.10\u3011\u51c6\u5907\u7b2c\u516d\u6b21\u4f5c\u4e1a<br \/> \u301010.11\u3011\u7406\u89e3RNN<br \/> \u301010.10\u3011\u4f7f\u7528LSTM<br \/> \u301010.19\u3011\u8bad\u7ec3LSTMa<br \/> \u301010.20\u3011oppotunity\u662f113\u901a\u9053\u4f20\u611f\u5668\u6570\u636e<br \/> \u301010.21\u3011ConvLSTM<br \/> \u9002\u7528\u4e8e\u65f6\u7a7a\u5e8f\u5217\u95ee\u9898 \uff0cLSTM\u5904\u7406\u65f6\u95f4\u5e8f\u5217\uff0cCNN\u89e3\u51b3\u7a7a\u95f4\u7279\u5f81\u63d0\u53d6<br \/> \u4e5d\u8f74\u6570\u636e\u4ee3\u8868\u6bcf\u4e2a\u65f6\u95f4\u6b65\u67099\u4e2a\u7279\u5f81<\/p>\n<p>[\u771f\u631a\u611f\u8c22\u4ee5\u4e0a\u5404\u4f4d\u5927\u4f6c\uff0c\u8ba9\u6211\u80fd\u591f\u5728\u6df1\u5ea6\u5b66\u4e60\u7684\u6d77\u6d0b\u91cc\u9068\u6e38]<\/p>\n","protected":false},"excerpt":{"rendered":"\u6df1\u5ea6\u5b66\u4e60\u4e4b\u8def\u5b66\u4e60\u8bb0\u5f55\u4e00\u3001python\u30107.19\u3011\u83dc\u9e1f\u6559\u7a0b\u6570\u636e\u7c7b\u578b\u4e8c\u3001cs231n1.k-\u6700\u8fd1\u90bb\u7b97\u6cd52.\u7ebf\u6027\u5206\u7c7b_python3\u964d\u52302","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/5029"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=5029"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/5029\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=5029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=5029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=5029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}