{"id":8136,"date":"2022-09-24T16:02:00","date_gmt":"2022-09-24T08:02:00","guid":{"rendered":"http:\/\/139.9.1.231\/?p=8136"},"modified":"2022-09-22T10:28:02","modified_gmt":"2022-09-22T02:28:02","slug":"cnn_network","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2022\/09\/24\/cnn_network\/","title":{"rendered":"\u7ecf\u5178CNN\u7f51\u7edc\u7ed3\u6784"},"content":{"rendered":"\n\n\n<p>       \u56de\u987e21\u4e16\u7eaa10\u5e74\u4ee3\uff0c\u6df1\u5ea6\u5b66\u4e60\u53d6\u5f97\u4e86\u5de8\u5927\u7684\u8fdb\u6b65\uff0c\u4ea7\u751f\u4e86\u5de8\u5927\u7684\u5f71\u54cd\u3002\u4e3b\u8981\u9a71\u52a8\u529b\u662f\u795e\u7ecf\u7f51\u7edc\u7684\u590d\u5174\uff0c\u7279\u522b\u662f\u5377\u79ef\u795e\u7ecf\u7f51\u7edc(ConvNets)\u3002\u5341\u5e74\u6765\uff0c\u89c6\u89c9\u8bc6\u522b\u9886\u57df\u6210\u529f\u5730\u4ece\u5de5\u7a0b\u7279\u5f81\u8f6c\u53d8\u4e3a\u8bbe\u8ba1(ConvNet)\u67b6\u6784\u3002\u5c3d\u7ba1\u91c7\u7528\u53cd\u5411\u4f20\u64ad\u8bad\u7ec3\u65b9\u6cd5\u7684\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u81ea\u4e0a\u4e16\u7eaa\u516b\u5341\u5e74\u4ee3\u5df2\u7ecf\u53d1\u660e\u4e86\uff0c\u4f46\u76f4\u52302012\u5e74\u6211\u4eec\u624d\u770b\u5230\u5b83\u4f5c\u4e3a\u89c6\u89c9\u7279\u5f81\u5b66\u4e60\u7684\u771f\u6b63\u6f5c\u529b\u3002AlexNet\u7684\u5f15\u5165\u4fc3\u6210\u4e86\u201cImageNet\u7684\u65f6\u523b\u201d\uff0c\u5f15\u9886\u4e86\u8ba1\u7b97\u673a\u89c6\u89c9\u9886\u57df\u7684\u4e00\u4e2a\u65b0\u65f6\u4ee3\uff0c\u8fd9\u4e2a\u9886\u57df\u56e0\u6b64\u800c\u5feb\u901f\u6f14\u5316\u3002\u5177\u6709\u4ee3\u8868\u6027\u7684\u7f51\u7edc\u6709VGGNet\u3001Inceptions\u3001Resnet\u3001DenseNet\u3001MobileNet\u3001EfficientNet\u3001RegNet\u7b49\uff0c\u5b83\u4eec\u5206\u522b\u5173\u6ce8\u7cbe\u5ea6\u3001\u6548\u7387\u3001\u53ef\u6269\u5c55\u6027\u7b49\u65b9\u9762\uff0c\u5e76\u4e14\u666e\u53ca\u4e86\u5f88\u591a\u6709\u7528\u7684\u8bbe\u8ba1\u539f\u5219\u3002<\/p>\n\n\n\n<h2>1\u3001 VGGNet <\/h2>\n\n\n\n<p>VGG16\u76f8\u6bd4AlexNet\u7684\u4e00\u4e2a\u6539\u8fdb\u662f<strong>\u91c7\u7528\u8fde\u7eed\u7684\u51e0\u4e2a3&#215;3\u7684\u5377\u79ef\u6838\u4ee3\u66ffAlexNet\u4e2d\u7684\u8f83\u5927\u5377\u79ef\u6838\uff0811&#215;11\uff0c7&#215;7\uff0c5&#215;5\uff09<\/strong>\u3002\u5bf9\u4e8e\u7ed9\u5b9a\u7684\u611f\u53d7\u91ce\uff08\u4e0e\u8f93\u51fa\u6709\u5173\u7684\u8f93\u5165\u56fe\u7247\u7684\u5c40\u90e8\u5927\u5c0f\uff09\uff0c\u91c7\u7528\u5806\u79ef\u7684\u5c0f\u5377\u79ef\u6838\u662f\u4f18\u4e8e\u91c7\u7528\u5927\u7684\u5377\u79ef\u6838\uff0c\u56e0\u4e3a\u591a\u5c42\u975e\u7ebf\u6027\u5c42\u53ef\u4ee5\u589e\u52a0\u7f51\u7edc\u6df1\u5ea6\u6765\u4fdd\u8bc1\u5b66\u4e60\u66f4\u590d\u6742\u7684\u6a21\u5f0f\uff0c\u800c\u4e14\u4ee3\u4ef7\u8fd8\u6bd4\u8f83\u5c0f\uff08\u53c2\u6570\u66f4\u5c11\uff09\u3002<\/p>\n\n\n\n<p>\u7b80\u5355\u6765\u8bf4\uff0c\u5728VGG\u4e2d\uff0c\u4f7f\u7528\u4e863\u4e2a3&#215;3\u5377\u79ef\u6838\u6765\u4ee3\u66ff7&#215;7\u5377\u79ef\u6838\uff0c\u4f7f\u7528\u4e862\u4e2a3&#215;3\u5377\u79ef\u6838\u6765\u4ee3\u66ff5*5\u5377\u79ef\u6838\uff0c\u8fd9\u6837\u505a\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5728\u4fdd\u8bc1\u5177\u6709\u76f8\u540c\u611f\u77e5\u91ce\u7684\u6761\u4ef6\u4e0b\uff0c\u63d0\u5347\u4e86\u7f51\u7edc\u7684\u6df1\u5ea6\uff0c\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u63d0\u5347\u4e86\u795e\u7ecf\u7f51\u7edc\u7684\u6548\u679c\u3002<\/p>\n\n\n\n<p>\u7f51\u7edc\u7ed3\u6784\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"523\" height=\"318\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-245.png\" alt=\"\" class=\"wp-image-8141\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-245.png 523w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-245-300x182.png 300w\" sizes=\"(max-width: 523px) 100vw, 523px\" \/><\/figure>\n\n\n\n<h2>2\u3001 Inception\u7cfb\u5217\u7f51\u7edc<\/h2>\n\n\n\n<h3>Inception V1<\/h3>\n\n\n\n<p>\u5728\u8fd9\u4e4b\u524d\uff0c\u7f51\u7edc\u5927\u90fd\u662f\u8fd9\u6837\u5b50\u7684\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic3.zhimg.com\/v2-1c0f619bb68b5d24e4ed1054b05c947a_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u4e5f\u5c31\u662f\u5377\u79ef\u5c42\u548c\u6c60\u5316\u5c42\u7684\u987a\u5e8f\u8fde\u63a5\u3002\u8fd9\u6837\u7684\u8bdd\uff0c\u8981\u60f3\u63d0\u9ad8\u7cbe\u5ea6\uff0c\u589e\u52a0\u7f51\u7edc\u6df1\u5ea6\u548c\u5bbd\u5ea6\u662f\u4e00\u4e2a\u6709\u6548\u9014\u5f84\uff0c\u4f46\u4e5f\u9762\u4e34\u7740\u53c2\u6570\u91cf\u8fc7\u591a\u3001\u8fc7\u62df\u5408\u7b49\u95ee\u9898\u3002\uff08\u5f53\u7136\uff0c\u6539\u6539\u8d85\u53c2\u6570\u4e5f\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\uff09<\/p>\n\n\n\n<p>\u6709\u6ca1\u6709\u53ef\u80fd\u5728\u540c\u4e00\u5c42\u5c31\u53ef\u4ee5\u63d0\u53d6\u4e0d\u540c\uff08\u7a00\u758f\u6216\u4e0d\u7a00\u758f\uff09\u7684\u7279\u5f81\u5462(\u4f7f\u7528\u4e0d\u540c\u5c3a\u5bf8\u7684\u5377\u79ef\u6838)\uff1f\u4e8e\u662f\uff0c2014\u5e74\uff0c\u5728\u5176\u4ed6\u4eba\u90fd\u8fd8\u5728\u4e00\u5473\u7684\u589e\u52a0\u7f51\u7edc\u6df1\u5ea6\u65f6(\u6bd4\u5982vgg)\uff0c<a href=\"https:\/\/arxiv.org\/abs\/1409.4842\" target=\"_blank\" rel=\"noreferrer noopener\">GoogleNet<\/a>\u5c31\u7387\u5148\u63d0\u51fa\u4e86\u5377\u79ef\u6838\u7684\u5e76\u884c\u5408\u5e76\uff08\u4e5f\u79f0Bottleneck Layer\uff09\uff0c\u5982\u4e0b\u56fe\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic1.zhimg.com\/v2-3c99adb46b4256e74a5abb9026a17220_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u548c\u5377\u79ef\u5c42\u3001\u6c60\u5316\u5c42\u987a\u5e8f\u8fde\u63a5\u7684\u7ed3\u6784\uff08\u5982VGG\u7f51\u7edc\uff09\u76f8\u6bd4\uff0c\u8fd9\u6837\u7684\u7ed3\u6784\u4e3b\u8981\u6709\u4ee5\u4e0b\u6539\u8fdb\uff1a<\/p>\n\n\n\n<ol><li>\u4e00\u5c42block\u5c31\u5305\u542b1&#215;1\u5377\u79ef\uff0c3&#215;3\u5377\u79ef\uff0c5&#215;5\u5377\u79ef\uff0c3&#215;3\u6c60\u5316(\u4f7f\u7528\u8fd9\u6837\u7684\u5c3a\u5bf8\u4e0d\u662f\u5fc5\u9700\u7684\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8fdb\u884c\u8c03\u6574)\u3002\u8fd9\u6837\uff0c\u7f51\u7edc\u4e2d\u6bcf\u4e00\u5c42\u90fd\u80fd\u5b66\u4e60\u5230\u201c\u7a00\u758f\u201d\uff083&#215;3\u30015&#215;5\uff09\u6216\u201c\u4e0d\u7a00\u758f\u201d\uff081&#215;1\uff09\u7684\u7279\u5f81\uff0c\u65e2\u589e\u52a0\u4e86\u7f51\u7edc\u7684\u5bbd\u5ea6\uff0c\u4e5f\u589e\u52a0\u4e86\u7f51\u7edc\u5bf9\u5c3a\u5ea6\u7684\u9002\u5e94\u6027\uff1b<\/li><li>\u901a\u8fc7deep concat\u5728\u6bcf\u4e2ablock\u540e\u5408\u6210\u7279\u5f81\uff0c\u83b7\u5f97\u975e\u7ebf\u6027\u5c5e\u6027\u3002<\/li><\/ol>\n\n\n\n<p>\u6309\u7167\u8fd9\u6837\u7684\u7ed3\u6784\u6765\u589e\u52a0\u7f51\u7edc\u7684\u6df1\u5ea6\uff0c\u867d\u7136\u53ef\u4ee5\u63d0\u5347\u6027\u80fd\uff0c\u4f46\u662f\u8fd8\u9762\u4e34\u8ba1\u7b97\u91cf\u5927\uff08\u53c2\u6570\u591a\uff09\u7684\u95ee\u9898\u3002\u4e3a\u6539\u5584\u8fd9\u79cd\u73b0\u8c61\uff0cGooLeNet\u501f\u9274Network-in-Network\u7684\u601d\u60f3\uff0c\u4f7f\u75281&#215;1\u7684\u5377\u79ef\u6838\u5b9e\u73b0\u964d\u7ef4\u64cd\u4f5c(\u4e5f\u95f4\u63a5\u589e\u52a0\u4e86\u7f51\u7edc\u7684\u6df1\u5ea6)\uff0c\u4ee5\u6b64\u6765\u51cf\u5c0f\u7f51\u7edc\u7684\u53c2\u6570\u91cf(\u8fd9\u91cc\u5c31\u4e0d\u5bf9\u4e24\u79cd\u7ed3\u6784\u7684\u53c2\u6570\u91cf\u8fdb\u884c\u5b9a\u91cf\u6bd4\u8f83\u4e86)\uff0c\u5982\u56fe\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic3.zhimg.com\/v2-4c7116b1d363bcf9e492e8437dcc108a_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u6700\u540e\u5b9e\u73b0\u7684inception v1\u7f51\u7edc\u662f\u4e0a\u56fe\u7ed3\u6784\u7684\u987a\u5e8f\u8fde\u63a5\uff0c\u5176\u4e2d\u4e0d\u540cinception\u6a21\u5757\u4e4b\u95f4\u4f7f\u75282&#215;2\u7684\u6700\u5927\u6c60\u5316\u8fdb\u884c\u4e0b\u91c7\u6837\uff0c\u5982\u8868\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic1.zhimg.com\/v2-c214cb7df7b2eace7b9ba12da5fdbb40_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u5982\u8868\u6240\u793a\uff0c\u5b9e\u73b0\u7684\u7f51\u7edc\u4ecd\u6709\u4e00\u5c42\u5168\u8fde\u63a5\u5c42\uff0c\u8be5\u5c42\u7684\u8bbe\u7f6e\u662f\u4e3a\u4e86<strong>\u8fc1\u79fb\u5b66\u4e60<\/strong>\u7684\u5b9e\u73b0\uff08\u4e0b\u540c\uff09\u3002<\/p>\n\n\n\n<p>\u5728\u4e4b\u524d\u7684\u7f51\u7edc\u4e2d\uff0c\u6700\u540e\u90fd\u6709\u5168\u8fde\u63a5\u5c42\uff0c\u7ecf\u5b9e\u9a8c\u8bc1\u660e\uff0c\u5168\u8fde\u63a5\u5c42\u5e76\u4e0d\u662f\u5f88\u5fc5\u8981\u7684\uff0c\u56e0\u4e3a\u53ef\u80fd\u4f1a\u5e26\u6765\u4ee5\u4e0b\u4e09\u70b9\u4e0d\u4fbf\uff1a<\/p>\n\n\n\n<ul><li>\u7f51\u7edc\u7684\u8f93\u5165\u9700\u8981\u56fa\u5b9a<\/li><li>\u53c2\u6570\u91cf\u591a<\/li><li>\u6613\u53d1\u751f\u8fc7\u62df\u5408<\/li><\/ul>\n\n\n\n<p>\u5b9e\u9a8c\u8bc1\u660e\uff0c\u5c06\u5176\u66ff\u6362\u4e3a\u5e73\u5747\u6c60\u5316\u5c42\uff08\u6216\u80051&#215;1\u5377\u79ef\u5c42\uff09\u4e0d\u4ec5\u4e0d\u5f71\u54cd\u7cbe\u5ea6\uff0c\u8fd8\u53ef\u4ee5\u51cf\u5c11\u53c2\u6570\u91cf\u3002<\/p>\n\n\n\n<p>\u6b64\u5916\uff0c\u5b9e\u9a8c\u5ba4\u7684\u5c0f\u4f19\u4f34\u6700\u8fd1\u505a\u4e86\u4e0b\u5b9e\u9a8c\uff0c\u5982\u679c\u662f\u5c0f\u76ee\u6807\u68c0\u6d4b\u7684\u8bdd\uff0c\u7f51\u7edc\u7684\u6700\u540e\u8fd8\u662f\u9700\u8981\u51e0\u5c42\u5168\u8fde\u63a5\u5c42\u7684\uff0c\u731c\u60f3\u53ef\u80fd\u662f\u7528\u6c60\u5316\u7684\u8bdd\u4f1a\u635f\u5931\u592a\u591a\u4fe1\u606f\uff0c\u6bd5\u7adf\u662f\u5c0f\u76ee\u6807\u3002<\/p>\n\n\n\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<\/p>\n\n\n\n<p>Inception V2\u548cInception V3\u7684\u6539\u8fdb\uff0c\u4e3b\u8981\u662f\u57fa\u4e8eV3\u8bba\u6587\u4e2d\u63d0\u5230\u7684\u56db\u4e2a\u539f\u5219\uff1a<\/p>\n\n\n\n<ol><li>\u907f\u514d\u8868\u793a\u74f6\u9888\uff0c\u5c24\u5176\u662f\u5728\u7f51\u7edc\u7684\u524d\u9762\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u7279\u5f81\u56fe\u4ece\u8f93\u5165\u5230\u8f93\u51fa\u5e94\u8be5\u7f13\u6162\u51cf\u5c0f\u3002<\/li><li>\u9ad8\u7ef4\u5ea6\u7279\u5f81\u5728\u7f51\u7edc\u5c40\u90e8\u5904\u7406\u66f4\u52a0\u5bb9\u6613\u3002\u8003\u8651\u5230\u66f4\u591a\u7684\u8026\u5408\u7279\u5f81\uff0c\u5728\u5377\u79ef\u7f51\u7edc\u4e2d\u589e\u52a0\u975e\u7ebf\u6027\u3002\u53ef\u4ee5\u8ba9\u7f51\u7edc\u8bad\u7ec3\u66f4\u5feb\u3002<\/li><li>\u7a7a\u95f4\u805a\u5408\u53ef\u4ee5\u4ee5\u4f4e\u7ef4\u5ea6\u5d4c\u5165\u8fdb\u884c\uff0c\u8fd9\u6837\u4e0d\u4f1a\u5f71\u54cd\u7279\u5f81\u7684\u8868\u8fbe\u80fd\u529b\u3002\u5982\uff0c\u5728\u8fdb\u884c\u5927\u5c3a\u5ea6\u5377\u79ef\u4e4b\u524d\uff0c\u5148\u5bf9\u8f93\u5165\u8fdb\u884c\u964d\u7ef4\u3002<\/li><li>\u5e73\u8861\u7f51\u7edc\u7684\u5bbd\u5ea6\u548c\u6df1\u5ea6\u3002\u589e\u52a0\u5bbd\u5ea6\u548c\u6df1\u5ea6\u90fd\u4f1a\u5e26\u6765\u6027\u80fd\u4e0a\u7684\u63d0\u5347\uff0c\u4e24\u8005\u540c\u65f6\u589e\u52a0\u5e26\u6765\u4e86\u5e76\u884c\u63d0\u5347\uff0c\u4f46\u662f\u8981\u8003\u8651\u8ba1\u7b97\u8d44\u6e90\u7684\u5408\u7406\u5206\u914d\u3002<\/li><\/ol>\n\n\n\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<\/p>\n\n\n\n<h3>Inception v2<\/h3>\n\n\n\n<p>\uff08<strong>\u6ce8\u610f<\/strong>\uff0c\u8fd9\u91cc\u5b9e\u73b0\u7684inception v2\u7684\u7ed3\u6784\u662f\u5728inception v3\u8bba\u6587\u4e2d\u6709\u4ecb\u7ecd\uff09<\/p>\n\n\n\n<p>2015\u5e74Google\u56e2\u961f\u53c8\u63d0\u51fa\u4e86inception v2\u7684\u7ed3\u6784\uff0c\u57fa\u4e8e\u4e0a\u9762\u63d0\u5230\u7684\u4e00\u4e9b\u539f\u5219\uff0c\u5728V1\u7684\u57fa\u7840\u4e4b\u4e0a\u4e3b\u8981\u505a\u4e86\u4ee5\u4e0b\u6539\u8fdb\uff1a<\/p>\n\n\n\n<p>\u2474 \u4f7f\u7528BN\u5c42\uff0c\u5c06\u6bcf\u4e00\u5c42\u7684\u8f93\u51fa\u90fd\u89c4\u8303\u5316\u5230\u4e00\u4e2aN(0,1)\u7684\u6b63\u6001\u5206\u5e03\uff0c\u8fd9\u5c06\u6709\u52a9\u4e8e\u8bad\u7ec3\uff0c\u56e0\u4e3a\u4e0b\u4e00\u5c42\u4e0d\u5fc5\u5b66\u4e60\u8f93\u5165\u6570\u636e\u4e2d\u7684\u504f\u79fb\uff0c\u5e76\u4e14\u53ef\u4ee5\u4e13\u6ce8\u4e0e\u5982\u4f55\u66f4\u597d\u5730\u7ec4\u5408\u7279\u5f81\uff08\u4e5f\u56e0\u4e3a\u5728v2\u91cc\u6709\u8f83\u597d\u7684\u6548\u679c\uff0cBN\u5c42\u51e0\u4e4e\u662f\u6210\u4e86\u6df1\u5ea6\u7f51\u7edc\u7684\u5fc5\u5907\uff09\uff1b<\/p>\n\n\n\n<p>\uff08\u5728<a href=\"http:\/\/arxiv.org\/abs\/1502.03167\" target=\"_blank\" rel=\"noreferrer noopener\">Batch-normalized<\/a>\u8bba\u6587\u4e2d\u53ea\u589e\u52a0\u4e86BN\u5c42\uff0c\u800c\u4e4b\u540e\u7684<a href=\"http:\/\/arxiv.org\/abs\/1512.00567\" target=\"_blank\" rel=\"noreferrer noopener\">Inception V3<\/a>\u7684\u8bba\u6587\u63d0\u53ca\u5230\u7684inception v2\u8fd8\u505a\u4e86\u4e0b\u9762\u7684\u4f18\u5316\uff09<\/p>\n\n\n\n<p>\u2475 \u4f7f\u75282\u4e2a3&#215;3\u7684\u5377\u79ef\u4ee3\u66ff\u68af\u5ea6\uff08\u7279\u5f81\u56fe\uff0c\u4e0b\u540c\uff09\u4e3a35&#215;35\u4e2d\u76845&#215;5\u7684\u5377\u79ef\uff0c\u8fd9\u6837\u65e2\u53ef\u4ee5\u83b7\u5f97\u76f8\u540c\u7684\u89c6\u91ce(\u7ecf\u8fc72\u4e2a3&#215;3\u5377\u79ef\u5f97\u5230\u7684\u7279\u5f81\u56fe\u5927\u5c0f\u7b49\u4e8e1\u4e2a5&#215;5\u5377\u79ef\u5f97\u5230\u7684\u7279\u5f81\u56fe)\uff0c\u8fd8\u5177\u6709\u66f4\u5c11\u7684\u53c2\u6570\uff0c\u8fd8\u95f4\u63a5\u589e\u52a0\u4e86\u7f51\u7edc\u7684\u6df1\u5ea6\uff0c\u5982\u4e0b\u56fe\u3002\uff08<strong>\u57fa\u4e8e\u539f\u52193<\/strong>\uff09<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic3.zhimg.com\/80\/v2-fa843c3f4bacbd516d97876a5278342a_720w.jpg\" alt=\"\"\/><figcaption>figure5<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u2476 3&#215;3\u7684\u5377\u79ef\u6838\u8868\u73b0\u7684\u4e0d\u9519\uff0c\u90a3\u66f4\u5c0f\u7684\u5377\u79ef\u6838\u662f\u4e0d\u662f\u4f1a\u66f4\u597d\u5462\uff1f\u6bd4\u59822&#215;2\u3002\u5bf9\u6b64\uff0cv2\u572817&#215;17\u7684\u68af\u5ea6\u4e2d\u4f7f\u75281*n\u548cn*1\u8fd9\u79cd\u975e\u5bf9\u79f0\u7684\u5377\u79ef\u6765\u4ee3\u66ffn*n\u7684\u5bf9\u79f0\u5377\u79ef\uff0c\u65e2\u964d\u4f4e\u7f51\u7edc\u7684\u53c2\u6570\uff0c\u53c8\u589e\u52a0\u4e86\u7f51\u7edc\u7684\u6df1\u5ea6\uff08\u5b9e\u9a8c\u8bc1\u660e\uff0c\u8be5\u7ed3\u6784\u653e\u4e8e\u7f51\u7edc\u4e2d\u90e8\uff0c\u53d6n=7\uff0c\u51c6\u786e\u7387\u66f4\u9ad8\uff09\uff0c\u5982\u4e0b\u3002\uff08<strong>\u57fa\u4e8e\u539f\u52193<\/strong>\uff09<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic2.zhimg.com\/80\/v2-b9dc2760e100531c3c06039faac57451_720w.jpg\" alt=\"\"\/><figcaption>figure6<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u2477 \u5728\u68af\u5ea6\u4e3a8&#215;8\u65f6\u4f7f\u7528\u53ef\u4ee5\u589e\u52a0\u6ee4\u6ce2\u5668\u8f93\u51fa\u7684\u6a21\u5757\uff08\u5982\u4e0b\u56fe\uff09\uff0c\u4ee5\u6b64\u6765\u4ea7\u751f\u9ad8\u7ef4\u7684\u7a00\u758f\u7279\u5f81\u3002\uff08<strong>\u57fa\u4e8e\u539f\u52192<\/strong>\uff09<\/p>\n\n\n\n<p>(\u539f\u52192\u6307\u51fa\uff0c\u5728\u9ad8\u7ef4\u7279\u5f81\u4e0a\uff0c\u91c7\u7528\u8fd9\u79cd\u7ed3\u6784\u66f4\u597d\uff0c\u56e0\u6b64\u8be5\u6a21\u5757\u7528\u5728\u4e868&#215;8\u7684\u68af\u5ea6\u4e0a)<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic3.zhimg.com\/80\/v2-70f9ead6efc04aa2d5732c958a5c8b1a_720w.jpg\" alt=\"\"\/><figcaption>figure7<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u2478 \u8f93\u5165\u4ece224&#215;224\u53d8\u4e3a229&#215;229\u3002<\/p>\n\n\n\n<p>\u6700\u540e\u5b9e\u73b0\u7684Inception v2\u7684\u7ed3\u6784\u5982\u4e0b\u8868\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic4.zhimg.com\/v2-046e1d0163f6bab87a97a05a049ea7df_r.jpg\" alt=\"\"\/><\/figure><\/div>\n\n\n\n<p>\u7ecf\u8fc7\u7f51\u7edc\u7684\u6539\u8fdb\uff0cinception v2\u5f97\u5230\u66f4\u4f4e\u7684\u8bc6\u522b\u8bef\u5dee\u7387\uff0c\u4e0e\u5176\u4ed6\u7f51\u7edc\u8bc6\u522b\u8bef\u5dee\u7387\u5bf9\u6bd4\u5982\u8868\u6240\u793a\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic2.zhimg.com\/80\/v2-46316e160995689c6bcfaeb089e2b5c1_720w.jpg\" alt=\"\"\/><\/figure><\/div>\n\n\n\n<p>\u5982\u8868\uff0cinception v2\u76f8\u6bd4inception v1\u5728imagenet\u7684\u6570\u636e\u96c6\u4e0a\uff0c\u8bc6\u522b\u8bef\u5dee\u7387\u753129%\u964d\u4e3a23.4%\u3002<\/p>\n\n\n\n<h3>Inception v3<\/h3>\n\n\n\n<p>inception\u6a21\u5757\u4e4b\u95f4\u7279\u5f81\u56fe\u7684\u7f29\u5c0f\uff0c\u4e3b\u8981\u6709\u4e0b\u9762\u4e24\u79cd\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic1.zhimg.com\/v2-042844ea68d69cd693f6082d455a2ff0_r.jpg\" alt=\"\"\/><\/figure><\/div>\n\n\n\n<p>\u53f3\u56fe\u662f\u5148\u8fdb\u884cinception\u64cd\u4f5c\uff0c\u518d\u8fdb\u884c\u6c60\u5316\u6765\u4e0b\u91c7\u6837\uff0c\u4f46\u662f\u8fd9\u6837\u53c2\u6570\u91cf\u660e\u663e\u591a\u4e8e\u5de6\u56fe(\u6bd4\u8f83\u65b9\u5f0f\u540c\u524d\u6587\u7684\u964d\u7ef4\u540einception\u6a21\u5757)\uff0c\u56e0\u6b64v2\u91c7\u7528\u7684\u662f\u5de6\u56fe\u7684\u65b9\u5f0f\uff0c\u5373\u5728\u4e0d\u540c\u7684inception\u4e4b\u95f4\uff0835\/17\/8\u7684\u68af\u5ea6\uff09\u91c7\u7528\u6c60\u5316\u6765\u8fdb\u884c\u4e0b\u91c7\u6837\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\uff0c\u5de6\u56fe\u8fd9\u79cd\u64cd\u4f5c\u4f1a\u9020\u6210\u8868\u8fbe\u74f6\u9888\u95ee\u9898\uff0c\u4e5f\u5c31\u662f\u8bf4\u7279\u5f81\u56fe\u7684\u5927\u5c0f\u4e0d\u5e94\u8be5\u51fa\u73b0\u6025\u5267\u7684\u8870\u51cf(\u53ea\u7ecf\u8fc7\u4e00\u5c42\u5c31\u9aa4\u964d)\u3002\u5982\u679c\u51fa\u73b0\u6025\u5267\u7f29\u51cf\uff0c\u5c06\u4f1a\u4e22\u5931\u5927\u91cf\u7684\u4fe1\u606f\uff0c\u5bf9\u6a21\u578b\u7684\u8bad\u7ec3\u9020\u6210\u56f0\u96be\u3002\uff08\u4e0a\u6587\u63d0\u5230\u7684<strong>\u539f\u52191<\/strong>\uff09<\/p>\n\n\n\n<p>\u56e0\u6b64\uff0c\u57282015\u5e7412\u6708\u63d0\u51fa\u7684<a href=\"http:\/\/arxiv.org\/abs\/1512.00567\" target=\"_blank\" rel=\"noreferrer noopener\">Inception V3<\/a>\u7ed3\u6784\u501f\u9274inception\u7684\u7ed3\u6784\u8bbe\u8ba1\u4e86\u91c7\u7528\u4e00\u79cd\u5e76\u884c\u7684\u964d\u7ef4\u7ed3\u6784\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic3.zhimg.com\/80\/v2-148019d36a05103c33075ee3cb0c6d02_720w.jpg\" alt=\"\"\/><\/figure><\/div>\n\n\n\n<p>\u5177\u4f53\u6765\u8bf4\uff0c\u5c31\u662f\u572835\/17\/8\u4e4b\u95f4\u5206\u522b\u91c7\u7528\u4e0b\u9762\u8fd9\u4e24\u79cd\u65b9\u5f0f\u6765\u5b9e\u73b0\u7279\u5f81\u56fe\u5c3a\u5bf8\u7684\u7f29\u5c0f\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic4.zhimg.com\/80\/v2-bc696053bf16578d3804d0d3e14329c3_720w.jpg\" alt=\"\"\/><figcaption>figure 5&#8242; 35\/17\u4e4b\u95f4\u7684\u7279\u5f81\u56fe\u5c3a\u5bf8\u51cf\u5c0f<\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic4.zhimg.com\/80\/v2-baa71ea4f5723788326e9cf15d0bfc4f_720w.jpg\" alt=\"\"\/><figcaption>figure 6&#8242; 17\/8\u4e4b\u95f4\u7684\u7279\u5f81\u56fe\u5c3a\u5bf8\u7f29\u5c0f<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u8fd9\u6837\u5c31\u5f97\u5230Inception v3\u7684\u7f51\u7edc\u7ed3\u6784\uff0c\u5982\u8868\u6240\u793a\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic2.zhimg.com\/v2-1d2c062e89b55993b601128b3e4bf409_r.jpg\" alt=\"\"\/><figcaption>inception v3<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u7ecf\u8fc7\u4f18\u5316\u540e\u7684inception v3\u7f51\u7edc\u4e0e\u5176\u4ed6\u7f51\u7edc\u8bc6\u522b\u8bef\u5dee\u7387\u5bf9\u6bd4\u5982\u8868\u6240\u793a\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic1.zhimg.com\/v2-a805c924419b551ebdab90bbb785fd58_r.jpg\" alt=\"\"\/><\/figure><\/div>\n\n\n\n<p>\u5982\u8868\u6240\u793a\uff0c\u5728144&#215;144\u7684\u8f93\u5165\u4e0a\uff0cinception v3\u7684\u8bc6\u522b\u9519\u8bef\u7387\u7531v1\u76847.89%\u964d\u4e3a\u4e864.2%\u3002<\/p>\n\n\n\n<p>\u6b64\u5916\uff0c\u6587\u7ae0\u8fd8\u63d0\u5230\u4e86\u4e2d\u95f4\u8f85\u52a9\u5c42\uff0c\u5373\u5728\u7f51\u7edc\u4e2d\u90e8\u518d\u589e\u52a0\u4e00\u4e2a\u8f93\u51fa\u5c42\u3002\u5b9e\u9a8c\u53d1\u73b0\uff0c\u4e2d\u95f4\u8f85\u52a9\u5c42\u5728\u8bad\u7ec3\u524d\u671f\u5f71\u54cd\u4e0d\u5927\uff0c\u800c\u5728\u8bad\u7ec3\u540e\u671f\u5374\u53ef\u4ee5\u63d0\u9ad8\u7cbe\u5ea6\uff0c\u76f8\u5f53\u4e8e\u6b63\u5219\u9879\u3002<\/p>\n\n\n\n<h3>Inception V4<\/h3>\n\n\n\n<p>\u5176\u5b9e\uff0c\u505a\u5230\u73b0\u5728\uff0cinception\u6a21\u5757\u611f\u89c9\u5df2\u7ecf\u505a\u7684\u5dee\u4e0d\u591a\u4e86\uff0c\u518d\u505a\u4e0b\u53bb\u51c6\u786e\u7387\u5e94\u8be5\u4e5f\u4e0d\u4f1a\u6709\u5927\u7684\u6539\u53d8\u3002\u4f46\u662f\u8c37\u6b4c\u8fd9\u5e2e\u4eba\u8fd8\u662f\u4e0d\u653e\u5f03\uff0c\u975e\u8981\u628a\u4e00\u4e2a\u4e1c\u897f\u505a\u5230\u6781\u81f4\uff0c\u6539\u53d8\u4e0d\u4e86inception\u6a21\u5757\uff0c\u5c31\u6539\u53d8\u5176\u4ed6\u7684\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\uff0c\u4f5c\u8005<a href=\"https:\/\/arxiv.org\/abs\/1602.07261\" target=\"_blank\" rel=\"noreferrer noopener\">Christian Szegedy<\/a>\u8bbe\u8ba1\u4e86inception v4\u7684\u7f51\u7edc\uff0c\u5c06\u539f\u6765\u5377\u79ef\u3001\u6c60\u5316\u7684\u987a\u6b21\u8fde\u63a5\uff08\u7f51\u7edc\u7684\u524d\u51e0\u5c42\uff09\u66ff\u6362\u4e3astem\u6a21\u5757\uff0c\u6765\u83b7\u5f97\u66f4\u6df1\u7684\u7f51\u7edc\u7ed3\u6784\u3002stem\u6a21\u5757\u7ed3\u6784\u5982\u4e0b<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic3.zhimg.com\/80\/v2-7b4c2f9d85acf34fceb16d97d3770646_720w.jpg\" alt=\"\"\/><figcaption>stem\u6a21\u5757<\/figcaption><\/figure><\/div>\n\n\n\n<p>stem\u4e4b\u540e\u7684\uff0c\u540cv3\uff0c\u662finception\u6a21\u5757\u548creduction\u6a21\u5757\uff0c\u5982\u4e0b\u56fe<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic1.zhimg.com\/v2-cbe8d140c4ff5d73865a56828f9dc31c_r.jpg\" alt=\"\"\/><figcaption>inception v4 \u4e2d\u7684inception\u6a21\u5757\uff08\u5206\u522b\u4e3ainception A inception B inception C\uff09<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic3.zhimg.com\/v2-b4d106e21b5b016c8840baf9f384191e_r.jpg\" alt=\"\"\/><figcaption>inception v4\u4e2d\u7684reduction\u6a21\u5757\uff08\u5206\u522b\u4e3areduction A reduction B\uff09<\/figcaption><\/figure>\n\n\n\n<p>\u6700\u7ec8\u5f97\u5230\u7684inception v4\u7ed3\u6784\u5982\u4e0b\u56fe\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic4.zhimg.com\/80\/v2-b2ec78e9c9ebd04da20dd865f3136d17_720w.jpg\" alt=\"\"\/><\/figure><\/div>\n\n\n\n<h3>Inception-ResNet-v2<\/h3>\n\n\n\n<p>ResNet\uff08\u8be5\u7f51\u7edc\u4ecb\u7ecd\u89c1<a href=\"https:\/\/zhuanlan.zhihu.com\/p\/30756859\">\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u7ed3\u6784\u7b80\u8ff0\uff08\u4e09\uff09\u6b8b\u5dee\u7cfb\u5217\u7f51\u7edc<\/a>\uff09\u7684\u7ed3\u6784\u65e2\u53ef\u4ee5\u52a0\u901f\u8bad\u7ec3\uff0c\u8fd8\u53ef\u4ee5\u63d0\u5347\u6027\u80fd\uff08\u9632\u6b62\u68af\u5ea6\u5f25\u6563\uff09\uff1bInception\u6a21\u5757\u53ef\u4ee5\u5728\u540c\u4e00\u5c42\u4e0a\u83b7\u5f97\u7a00\u758f\u6216\u975e\u7a00\u758f\u7684\u7279\u5f81\u3002\u6709\u6ca1\u6709\u53ef\u80fd\u5c06\u4e24\u8005\u8fdb\u884c\u4f18\u52bf\u4e92\u8865\u5462\uff1f<\/p>\n\n\n\n<p><a href=\"https:\/\/arxiv.org\/abs\/1602.07261\" target=\"_blank\" rel=\"noreferrer noopener\">Christian Szegedy<\/a>\u7b49\u4eba\u5c06\u4e24\u4e2a\u6a21\u5757\u7684\u4f18\u52bf\u8fdb\u884c\u4e86\u7ed3\u5408\uff0c\u8bbe\u8ba1\u51fa\u4e86Inception-ResNet\u7f51\u7edc\u3002<\/p>\n\n\n\n<p>(inception-resnet\u6709v1\u548cv2\u4e24\u4e2a\u7248\u672c\uff0cv2\u8868\u73b0\u66f4\u597d\u4e14\u66f4\u590d\u6742\uff0c\u8fd9\u91cc\u53ea\u4ecb\u7ecd\u4e86v2)<\/p>\n\n\n\n<p>inception-resnet\u7684\u6210\u529f\uff0c\u4e3b\u8981\u662f\u5b83\u7684inception-resnet\u6a21\u5757\u3002<\/p>\n\n\n\n<p>inception-resnet v2\u4e2d\u7684Inception-resnet\u6a21\u5757\u5982\u4e0b\u56fe<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic2.zhimg.com\/v2-03229a30f7e60c70de3a1bb143a9c2fd_r.jpg\" alt=\"\"\/><figcaption>Inception-resnet\u6a21\u5757\uff08\u5206\u522b\u4e3ainception-resnet-A inception-resnet-B inception-resnet-C\uff09<\/figcaption><\/figure>\n\n\n\n<p>Inception-resnet\u6a21\u5757\u4e4b\u95f4\u7279\u5f81\u56fe\u5c3a\u5bf8\u7684\u51cf\u5c0f\u5982\u4e0b\u56fe\u3002\uff08\u7c7b\u4f3c\u4e8einception v4\uff09<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic3.zhimg.com\/v2-38387ac623e8fc681a324cd47ae85a36_r.jpg\" alt=\"\"\/><figcaption>inception-resnet-v2\u4e2d\u7684reduction\u6a21\u5757\uff08\u5206\u522b\u4e3areduction A reduction B\uff09<\/figcaption><\/figure>\n\n\n\n<p>\u6700\u7ec8\u5f97\u5230\u7684Inception-ResNet-v2\u7f51\u7edc\u7ed3\u6784\u5982\u56fe(stem\u6a21\u5757\u540cinception v4)\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic4.zhimg.com\/80\/v2-4587b8bd8724eeaa049c64b396128313_720w.jpg\" alt=\"\"\/><\/figure><\/div>\n\n\n\n<p>\u7ecf\u8fc7\u8fd9\u4e24\u79cd\u7f51\u7edc\u7684\u6539\u8fdb\uff0c\u4f7f\u5f97\u6a21\u578b\u5bf9\u56fe\u50cf\u8bc6\u522b\u7684\u9519\u8bef\u7387\u8fdb\u4e00\u6b65\u5f97\u5230\u4e86\u964d\u4f4e\u3002Inception\u3001resnet\u7f51\u7edc\u7ed3\u679c\u5bf9\u6bd4\u5982\u8868\u6240\u793a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic3.zhimg.com\/v2-1b5e8d7e383430e2948b6b36dca865f6_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u5982\u8868\uff0cInception V4\u4e0eInception-ResNet-v2\u7f51\u7edc\u8f83\u4e4b\u524d\u7684\u7f51\u7edc\uff0c\u8bef\u5dee\u7387\u5747\u6709\u6240\u4e0b\u964d\u3002<\/p>\n\n\n\n<h2> 3\u3001Resnet <\/h2>\n\n\n\n<p>    <a rel=\"noreferrer noopener\" href=\"https:\/\/so.csdn.net\/so\/search?q=ResNet&amp;spm=1001.2101.3001.7020\" target=\"_blank\">ResNet<\/a>\u7f51\u7edc\u662f\u57282015\u5e74\u7531\u5fae\u8f6f\u5b9e\u9a8c\u5ba4\u63d0\u51fa\uff0c\u65a9\u83b7\u5f53\u5e74ImageNet\u7ade\u8d5b\u4e2d\u5206\u7c7b\u4efb\u52a1\u7b2c\u4e00\u540d\uff0c\u76ee\u6807\u68c0\u6d4b\u7b2c\u4e00\u540d\u3002\u83b7\u5f97COCO\u6570\u636e\u96c6\u4e2d\u76ee\u6807\u68c0\u6d4b\u7b2c\u4e00\u540d\uff0c\u56fe\u50cf\u5206\u5272\u7b2c\u4e00\u540d\u3002\u4e0b\u56fe\u662fResNet34\u5c42\u6a21\u578b\u7684\u7ed3\u6784\u7b80\u56fe\u3002<\/p>\n\n\n\n<p>\u5728ResNet\u7f51\u7edc\u4e2d\u6709\u5982\u4e0b\u51e0\u4e2a\u4eae\u70b9\uff1a<\/p>\n\n\n\n<p>\uff081\uff09\u63d0\u51faresidual\u7ed3\u6784\uff08\u6b8b\u5dee\u7ed3\u6784\uff09\uff0c\u5e76\u642d\u5efa\u8d85\u6df1\u7684\u7f51\u7edc\u7ed3\u6784(\u7a81\u78341000\u5c42)<\/p>\n\n\n\n<p>\uff082\uff09\u4f7f\u7528Batch Normalization\u52a0\u901f\u8bad\u7ec3(\u4e22\u5f03dropout)<\/p>\n\n\n\n<p>    \u5728ResNet\u7f51\u7edc\u63d0\u51fa\u4e4b\u524d\uff0c\u4f20\u7edf\u7684\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\u90fd\u662f\u901a\u8fc7\u5c06\u4e00\u7cfb\u5217\u5377\u79ef\u5c42\u4e0e\u4e0b\u91c7\u6837\u5c42\u8fdb\u884c\u5806\u53e0\u5f97\u5230\u7684\u3002\u4f46\u662f\u5f53\u5806\u53e0\u5230\u4e00\u5b9a\u7f51\u7edc\u6df1\u5ea6\u65f6\uff0c\u5c31\u4f1a\u51fa\u73b0\u4e24\u4e2a\u95ee\u9898\u30021\uff09\u68af\u5ea6\u6d88\u5931\u6216\u68af\u5ea6\u7206\u70b8\u3002 2\uff09\u9000\u5316\u95ee\u9898(degradation problem)\u3002\u5728ResNet\u8bba\u6587\u4e2d\u8bf4\u901a\u8fc7\u6570\u636e\u7684\u9884\u5904\u7406\u4ee5\u53ca\u5728\u7f51\u7edc\u4e2d\u4f7f\u7528BN\uff08Batch Normalization\uff09\u5c42\u80fd\u591f\u89e3\u51b3\u68af\u5ea6\u6d88\u5931\u6216\u8005\u68af\u5ea6\u7206\u70b8\u95ee\u9898\u3002\u5982\u679c\u4e0d\u4e86\u89e3BN\u5c42\u53ef\u53c2\u8003\u8fd9\u4e2a<strong><a rel=\"noreferrer noopener\" href=\"https:\/\/blog.csdn.net\/qq_37541097\/article\/details\/104434557\" target=\"_blank\">\u94fe\u63a5<\/a><\/strong>\u3002\u4f46\u662f\u5bf9\u4e8e\u9000\u5316\u95ee\u9898\uff08\u968f\u7740\u7f51\u7edc\u5c42\u6570\u7684\u52a0\u6df1\uff0c\u6548\u679c\u8fd8\u4f1a\u53d8\u5dee\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff09\u5e76\u6ca1\u6709\u5f88\u597d\u7684\u89e3\u51b3\u529e\u6cd5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"149\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-246-1024x149.png\" alt=\"\" class=\"wp-image-8145\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-246-1024x149.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-246-300x44.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-246-768x112.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-246.png 1481w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2> 4\u3001DenseNet <\/h2>\n\n\n\n<p>DenseNet\u6a21\u578b\uff0c\u5b83\u7684\u57fa\u672c\u601d\u8def\u4e0eResNet\u4e00\u81f4\uff0c\u4f46\u662f\u5b83\u5efa\u7acb\u7684\u662f\u524d\u9762\u6240\u6709\u5c42\u4e0e\u540e\u9762\u5c42\u7684\u5bc6\u96c6\u8fde\u63a5\uff08dense connection\uff09\uff0c\u5b83\u7684\u540d\u79f0\u4e5f\u662f\u7531\u6b64\u800c\u6765\u3002DenseNet\u7684\u53e6\u4e00\u5927\u7279\u8272\u662f\u901a\u8fc7\u7279\u5f81\u5728channel\u4e0a\u7684\u8fde\u63a5\u6765\u5b9e\u73b0\u7279\u5f81\u91cd\u7528\uff08feature reuse\uff09\u3002\u8fd9\u4e9b\u7279\u70b9\u8ba9DenseNet\u5728\u53c2\u6570\u548c\u8ba1\u7b97\u6210\u672c\u66f4\u5c11\u7684\u60c5\u5f62\u4e0b\u5b9e\u73b0\u6bd4ResNet\u66f4\u4f18\u7684\u6027\u80fd\uff0cDenseNet\u4e5f\u56e0\u6b64\u65a9\u83b7CVPR 2017\u7684\u6700\u4f73\u8bba\u6587\u5956.<\/p>\n\n\n\n<p>\u76f8\u6bd4ResNet\uff0cDenseNet\u63d0\u51fa\u4e86\u4e00\u4e2a\u66f4\u6fc0\u8fdb\u7684\u5bc6\u96c6\u8fde\u63a5\u673a\u5236\uff1a\u5373\u4e92\u76f8\u8fde\u63a5\u6240\u6709\u7684\u5c42\uff0c\u5177\u4f53\u6765\u8bf4\u5c31\u662f\u6bcf\u4e2a\u5c42\u90fd\u4f1a\u63a5\u53d7\u5176\u524d\u9762\u6240\u6709\u5c42\u4f5c\u4e3a\u5176\u989d\u5916\u7684\u8f93\u5165\u3002\u56fe1\u4e3aResNet\u7f51\u7edc\u7684\u8fde\u63a5\u673a\u5236\uff0c\u4f5c\u4e3a\u5bf9\u6bd4\uff0c\u56fe2\u4e3aDenseNet\u7684\u5bc6\u96c6\u8fde\u63a5\u673a\u5236\u3002\u53ef\u4ee5\u770b\u5230\uff0cResNet\u662f\u6bcf\u4e2a\u5c42\u4e0e\u524d\u9762\u7684\u67d0\u5c42\uff08\u4e00\u822c\u662f2~3\u5c42\uff09\u77ed\u8def\u8fde\u63a5\u5728\u4e00\u8d77\uff0c\u8fde\u63a5\u65b9\u5f0f\u662f\u901a\u8fc7\u5143\u7d20\u7ea7\u76f8\u52a0\u3002\u800c\u5728DenseNet\u4e2d\uff0c\u6bcf\u4e2a\u5c42\u90fd\u4f1a\u4e0e\u524d\u9762\u6240\u6709\u5c42\u5728channel\u7ef4\u5ea6\u4e0a\u8fde\u63a5\uff08concat\uff09\u5728\u4e00\u8d77\uff08\u8fd9\u91cc\u5404\u4e2a\u5c42\u7684\u7279\u5f81\u56fe\u5927\u5c0f\u662f\u76f8\u540c\u7684\uff09\uff0c\u5e76\u4f5c\u4e3a\u4e0b\u4e00\u5c42\u7684\u8f93\u5165\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic3.zhimg.com\/v2-862e1c2dcb24f10d264544190ad38142_r.jpg\" alt=\"\"\/><figcaption>\u56fe1 ResNet\u7f51\u7edc\u7684\u77ed\u8def\u8fde\u63a5\u673a\u5236\uff08\u5176\u4e2d+\u4ee3\u8868\u7684\u662f\u5143\u7d20\u7ea7\u76f8\u52a0\u64cd\u4f5c\uff09<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic3.zhimg.com\/v2-2cb01c1c9a217e56c72f4c24096fe3fe_r.jpg\" alt=\"\"\/><figcaption>\u56fe2 DenseNet\u7f51\u7edc\u7684\u5bc6\u96c6\u8fde\u63a5\u673a\u5236\uff08\u5176\u4e2dc\u4ee3\u8868\u7684\u662fchannel\u7ea7\u8fde\u63a5\u64cd\u4f5c\uff09<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"861\" height=\"256\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-247.png\" alt=\"\" class=\"wp-image-8149\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-247.png 861w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-247-300x89.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-247-768x228.png 768w\" sizes=\"(max-width: 861px) 100vw, 861px\" \/><figcaption>&nbsp;DenseNet\u7684\u7f51\u7edc\u7ed3\u6784<\/figcaption><\/figure>\n\n\n\n<h2>5\u3001MobileNet<\/h2>\n\n\n\n<p>MobileNet\u7684\u57fa\u672c\u5355\u5143\u662f\u6df1\u5ea6\u7ea7\u53ef\u5206\u79bb\u5377\u79ef\uff08depthwise separable convolution\uff09\uff0c\u5176\u5b9e\u8fd9\u79cd\u7ed3\u6784\u4e4b\u524d\u5df2\u7ecf\u88ab\u4f7f\u7528\u5728Inception\u6a21\u578b\u4e2d\u3002\u6df1\u5ea6\u7ea7\u53ef\u5206\u79bb\u5377\u79ef\u5176\u5b9e\u662f\u4e00\u79cd\u53ef\u5206\u89e3\u5377\u79ef\u64cd\u4f5c\uff08factorized convolutions\uff09\uff0c\u5176\u53ef\u4ee5\u5206\u89e3\u4e3a\u4e24\u4e2a\u66f4\u5c0f\u7684\u64cd\u4f5c\uff1adepthwise convolution\u548cpointwise convolution\uff0c\u5982\u56fe1\u6240\u793a\u3002Depthwise convolution\u548c\u6807\u51c6\u5377\u79ef\u4e0d\u540c\uff0c\u5bf9\u4e8e\u6807\u51c6\u5377\u79ef\u5176\u5377\u79ef\u6838\u662f\u7528\u5728\u6240\u6709\u7684\u8f93\u5165\u901a\u9053\u4e0a\uff08input channels\uff09\uff0c\u800cdepthwise convolution\u9488\u5bf9\u6bcf\u4e2a\u8f93\u5165\u901a\u9053\u91c7\u7528\u4e0d\u540c\u7684\u5377\u79ef\u6838\uff0c\u5c31\u662f\u8bf4\u4e00\u4e2a\u5377\u79ef\u6838\u5bf9\u5e94\u4e00\u4e2a\u8f93\u5165\u901a\u9053\uff0c\u6240\u4ee5\u8bf4depthwise convolution\u662fdepth\u7ea7\u522b\u7684\u64cd\u4f5c\u3002\u800cpointwise convolution\u5176\u5b9e\u5c31\u662f\u666e\u901a\u7684\u5377\u79ef\uff0c\u53ea\u4e0d\u8fc7\u5176\u91c7\u75281&#215;1\u7684\u5377\u79ef\u6838\u3002\u56fe2\u4e2d\u66f4\u6e05\u6670\u5730\u5c55\u793a\u4e86\u4e24\u79cd\u64cd\u4f5c\u3002\u5bf9\u4e8edepthwise separable convolution\uff0c\u5176\u9996\u5148\u662f\u91c7\u7528depthwise convolution\u5bf9\u4e0d\u540c\u8f93\u5165\u901a\u9053\u5206\u522b\u8fdb\u884c\u5377\u79ef\uff0c\u7136\u540e\u91c7\u7528pointwise convolution\u5c06\u4e0a\u9762\u7684\u8f93\u51fa\u518d\u8fdb\u884c\u7ed3\u5408\uff0c\u8fd9\u6837\u5176\u5b9e\u6574\u4f53\u6548\u679c\u548c\u4e00\u4e2a\u6807\u51c6\u5377\u79ef\u662f\u5dee\u4e0d\u591a\u7684\uff0c\u4f46\u662f\u4f1a\u5927\u5927\u51cf\u5c11\u8ba1\u7b97\u91cf\u548c\u6a21\u578b\u53c2\u6570\u91cf\u3002<\/p>\n\n\n\n<p>\u524d\u9762\u8bb2\u8ff0\u4e86depthwise separable convolution\uff0c\u8fd9\u662fMobileNet\u7684\u57fa\u672c\u7ec4\u4ef6\uff0c\u4f46\u662f\u5728\u771f\u6b63\u5e94\u7528\u4e2d\u4f1a\u52a0\u5165batchnorm\uff0c\u5e76\u4f7f\u7528ReLU\u6fc0\u6d3b\u51fd\u6570\uff0c\u6240\u4ee5depthwise separable convolution\u7684\u57fa\u672c\u7ed3\u6784\u5982\u56fe3\u6240\u793a\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic3.zhimg.com\/80\/v2-2fb755fbd24722bcb35f2d0d291cee22_720w.jpg\" alt=\"\"\/><figcaption> \u52a0\u5165BN\u548cReLU\u7684depthwise separable convolution<\/figcaption><\/figure><\/div>\n\n\n\n<p>MobileNet\u7684\u7f51\u7edc\u7ed3\u6784\u5982\u88681\u6240\u793a\u3002\u9996\u5148\u662f\u4e00\u4e2a3&#215;3\u7684\u6807\u51c6\u5377\u79ef\uff0c\u7136\u540e\u540e\u9762\u5c31\u662f\u5806\u79efdepthwise separable convolution\uff0c\u5e76\u4e14\u53ef\u4ee5\u770b\u5230\u5176\u4e2d\u7684\u90e8\u5206depthwise convolution\u4f1a\u901a\u8fc7strides=2\u8fdb\u884cdown sampling\u3002\u7136\u540e\u91c7\u7528average pooling\u5c06feature\u53d8\u62101&#215;1\uff0c\u6839\u636e\u9884\u6d4b\u7c7b\u522b\u5927\u5c0f\u52a0\u4e0a\u5168\u8fde\u63a5\u5c42\uff0c\u6700\u540e\u662f\u4e00\u4e2asoftmax\u5c42\u3002\u5982\u679c\u5355\u72ec\u8ba1\u7b97depthwise<br>convolution\u548cpointwise convolution\uff0c\u6574\u4e2a\u7f51\u7edc\u670928\u5c42\uff08\u8fd9\u91ccAvg Pool\u548cSoftmax\u4e0d\u8ba1\u7b97\u5728\u5185\uff09\u3002\u6211\u4eec\u8fd8\u53ef\u4ee5\u5206\u6790\u6574\u4e2a\u7f51\u7edc\u7684\u53c2\u6570\u548c\u8ba1\u7b97\u91cf\u5206\u5e03\uff0c\u5982\u88682\u6240\u793a\u3002\u53ef\u4ee5\u770b\u5230\u6574\u4e2a\u8ba1\u7b97\u91cf\u57fa\u672c\u96c6\u4e2d\u57281&#215;1\u5377\u79ef\u4e0a\uff0c\u5982\u679c\u4f60\u719f\u6089\u5377\u79ef\u5e95\u5c42\u5b9e\u73b0\u7684\u8bdd\uff0c\u4f60\u5e94\u8be5\u77e5\u9053\u5377\u79ef\u4e00\u822c\u901a\u8fc7\u4e00\u79cdim2col\u65b9\u5f0f\u5b9e\u73b0\uff0c\u5176\u9700\u8981\u5185\u5b58\u91cd\u7ec4\uff0c\u4f46\u662f\u5f53\u5377\u79ef\u6838\u4e3a1&#215;1\u65f6\uff0c\u5176\u5b9e\u5c31\u4e0d\u9700\u8981\u8fd9\u79cd\u64cd\u4f5c\u4e86\uff0c\u5e95\u5c42\u53ef\u4ee5\u6709\u66f4\u5feb\u7684\u5b9e\u73b0\u3002\u5bf9\u4e8e\u53c2\u6570\u4e5f\u4e3b\u8981\u96c6\u4e2d\u57281&#215;1\u5377\u79ef\uff0c\u9664\u6b64\u4e4b\u5916\u8fd8\u6709\u5c31\u662f\u5168\u8fde\u63a5\u5c42\u5360\u4e86\u4e00\u90e8\u5206\u53c2\u6570\u3002<\/p>\n\n\n\n<h3>MobileNetv2<\/h3>\n\n\n\n<p>MobileNetv2\u76f8\u6bd4v1\u7684\u4e24\u4e2a\u4e3b\u8981\u6539\u8fdb\uff1alinear bottleneck\u548cinverted residual\u3002<\/p>\n\n\n\n<p>v2\u7684\u52a0\u5165\u4e861\u00d71\u5347\u7ef4\uff0c\u5f15\u5165Shortcut\u5e76\u4e14\u53bb\u6389\u4e86\u6700\u540e\u7684ReLU\uff0c\u6539\u4e3aLinear\u3002\u6b65\u957f\u4e3a1\u65f6\uff0c\u5148\u8fdb\u884c1\u00d71\u5377\u79ef\u5347\u7ef4\uff0c\u518d\u8fdb\u884c\u6df1\u5ea6\u5377\u79ef\u63d0\u53d6\u7279\u5f81\uff0c\u518d\u901a\u8fc7Linear\u7684\u9010\u70b9\u5377\u79ef\u964d\u7ef4\u3002\u5c06input\u4e0eoutput\u76f8\u52a0\uff0c\u5f62\u6210\u6b8b\u5dee\u7ed3\u6784\u3002\u6b65\u957f\u4e3a2\u65f6\uff0c\u56e0\u4e3ainput\u4e0eoutput\u7684\u5c3a\u5bf8\u4e0d\u7b26\uff0c\u56e0\u6b64\u4e0d\u6dfb\u52a0shortcut\u7ed3\u6784\uff0c\u5176\u4f59\u5747\u4e00\u81f4\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic3.zhimg.com\/v2-f552e654e24bc4bd864ba4db86da6b86_r.jpg\" alt=\"preview\"\/><\/figure>\n\n\n\n<p>\u9996\u5148\u5229\u75283\u00d73\u7684\u6df1\u5ea6\u53ef\u5206\u79bb\u5377\u79ef\u63d0\u53d6\u7279\u5f81\uff0c\u7136\u540e\u5229\u75281\u00d71\u7684\u5377\u79ef\u6765\u6269\u5f20\u901a\u9053\u3002\u7528\u8fd9\u6837\u7684block\u5806\u53e0\u8d77\u6765\u7684MobileNetV1\u65e2\u80fd\u8f83\u5c11\u4e0d\u5c0f\u7684\u53c2\u6570\u91cf\u3001\u8ba1\u7b97\u91cf\uff0c\u63d0\u9ad8\u7f51\u7edc\u8fd0\u7b97\u901f\u5ea6\uff0c\u53c8\u80fd\u7684\u5f97\u5230\u4e00\u4e2a\u63a5\u8fd1\u4e8e\u6807\u51c6\u5377\u79ef\u7684\u8fd8\u4e0d\u9519\u7684\u7ed3\u679c\uff0c\u770b\u8d77\u6765\u662f\u5f88\u7f8e\u597d\u7684\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\uff01<\/p>\n\n\n\n<p>\u6709\u4eba\u5728\u5b9e\u9645\u4f7f\u7528\u7684\u65f6\u5019\uff0c \u53d1\u73b0\u6df1\u5ea6\u5377\u79ef\u90e8\u5206\u7684\u5377\u79ef\u6838\u6bd4\u8f83\u5bb9\u6613\u8bad\u5e9f\u6389\uff1a\u8bad\u5b8c\u4e4b\u540e\u53d1\u73b0\u6df1\u5ea6\u5377\u79ef\u8bad\u51fa\u6765\u7684\u5377\u79ef\u6838\u6709\u4e0d\u5c11\u662f\u7a7a\u7684.<\/p>\n\n\n\n<p>\u8fd9\u662f\u4e3a\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p>\u4f5c\u8005\u8ba4\u4e3a\u8fd9\u662f<strong>ReLU<\/strong>\u8fd9\u4e2a\u6d53\u7709\u5927\u773c\u7684\u6fc0\u6d3b\u51fd\u6570\u7684\u9505\u3002\uff08\u6ca1\u60f3\u5230\u4f60\u4e2a\u6d53\u7709\u5927\u773c\u7684ReLU\u6fc0\u6d3b\u51fd\u6570\u4e5f\u53db\u53d8\u9769\u547d\u4e86\uff1f\uff1f\uff1f\uff09<\/p>\n\n\n\n<p>\u9488\u5bf9\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u8fd9\u6837\u89e3\u51b3\uff1a\u65e2\u7136\u662fReLU\u5bfc\u81f4\u7684\u4fe1\u606f\u635f\u8017\uff0c<strong>\u5c06ReLU\u66ff\u6362\u6210\u7ebf\u6027\u6fc0\u6d3b\u51fd\u6570<\/strong>\u3002\u6211\u4eec\u5f53\u7136\u4e0d\u80fd\u628a\u6240\u6709\u7684\u6fc0\u6d3b\u5c42\u90fd\u6362\u6210\u7ebf\u6027\u7684\u554a\uff0c\u6240\u4ee5\u6211\u4eec\u5c31\u6084\u54aa\u54aa\u7684\u628a\u6700\u540e\u7684\u90a3\u4e2aReLU6\u6362\u6210Linear\u3002\u4f5c\u8005\u5c06\u8fd9\u4e2a\u90e8\u5206\u79f0\u4e4b\u4e3a<strong>linear bottleneck<\/strong>\u3002\u5bf9\uff0c\u5c31\u662f\u8bba\u6587\u540d\u4e2d\u7684\u90a3\u4e2alinear bottleneck\u3002<\/p>\n\n\n\n<p>\u73b0\u5728\u8fd8\u6709\u4e2a\u95ee\u9898\u662f\uff0c<strong>\u6df1\u5ea6\u5377\u79ef\u672c\u8eab\u6ca1\u6709\u6539\u53d8\u901a\u9053\u7684\u80fd\u529b\uff0c\u6765\u7684\u662f\u591a\u5c11\u901a\u9053\u8f93\u51fa\u5c31\u662f\u591a\u5c11\u901a\u9053<\/strong>\u3002\u5982\u679c\u6765\u7684\u901a\u9053\u5f88\u5c11\u7684\u8bdd\uff0cDW\u6df1\u5ea6\u5377\u79ef\u53ea\u80fd\u5728\u4f4e\u7ef4\u5ea6\u4e0a\u5de5\u4f5c\uff0c\u8fd9\u6837\u6548\u679c\u5e76\u4e0d\u4f1a\u5f88\u597d\uff0c\u6240\u4ee5<strong>\u6211\u4eec\u8981\u201c\u6269\u5f20\u201d\u901a\u9053<\/strong>\u3002\u65e2\u7136\u6211\u4eec\u5df2\u7ecf\u77e5\u9053<strong>PW\u9010\u70b9\u5377\u79ef\u4e5f\u5c31\u662f1\u00d71\u5377\u79ef\u53ef\u4ee5\u7528\u6765\u5347\u7ef4\u548c\u964d\u7ef4<\/strong>\uff0c\u90a3\u5c31\u53ef\u4ee5<strong>\u5728DW\u6df1\u5ea6\u5377\u79ef\u4e4b\u524d\u4f7f\u7528PW\u5377\u79ef\u8fdb\u884c\u5347\u7ef4\uff08\u5347\u7ef4\u500d\u6570\u4e3at\uff0ct=6\uff09\uff0c\u518d\u5728\u4e00\u4e2a\u66f4\u9ad8\u7ef4\u7684\u7a7a\u95f4\u4e2d\u8fdb\u884c\u5377\u79ef\u64cd\u4f5c\u6765\u63d0\u53d6\u7279\u5f81<\/strong>\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic1.zhimg.com\/v2-52de8b9c6bf90d6bf52299edf9fe09a4_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e0d\u7ba1\u8f93\u5165\u901a\u9053\u6570\u662f\u591a\u5c11\uff0c\u7ecf\u8fc7\u7b2c\u4e00\u4e2aPW\u9010\u70b9\u5377\u79ef\u5347\u7ef4\u4e4b\u540e\uff0c\u6df1\u5ea6\u5377\u79ef\u90fd\u662f\u5728\u76f8\u5bf9\u7684\u66f4\u9ad86\u500d\u7ef4\u5ea6\u4e0a\u8fdb\u884c\u5de5\u4f5c\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/pic4.zhimg.com\/v2-fb2496e6bed7551f49817d4e22202c17_r.jpg\" alt=\"\"\/><\/figure><\/div>\n\n\n\n<p>\u56de\u987eV1\u7684\u7f51\u7edc\u7ed3\u6784\uff0c\u6211\u4eec\u53d1\u73b0V1\u5f88\u50cf\u662f\u4e00\u4e2a\u76f4\u7b52\u578b\u7684VGG\u7f51\u7edc\u3002\u6211\u4eec\u60f3\u50cfResnet\u4e00\u6837\u590d\u7528\u6211\u4eec\u7684\u7279\u5f81\uff0c\u6240\u4ee5\u6211\u4eec\u5f15\u5165\u4e86<strong>shortcut\u7ed3\u6784<\/strong>\uff0c\u8fd9\u6837V2\u7684block\u5c31\u662f\u5982\u4e0b\u56fe\u5f62\u5f0f\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic3.zhimg.com\/v2-27e7b6dd3d9a934d8f6af1a6bf23fa8a_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u5bf9\u6bd4\u4e00\u4e0bV1\u548cV2\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic2.zhimg.com\/v2-7b4422a0efcc89c46029052d29d538b5_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>\u53ef\u4ee5\u53d1\u73b0\uff0c\u90fd\u91c7\u7528\u4e86 1\u00d71 -&gt; 3 \u00d73 -&gt; 1 \u00d7 1 \u7684\u6a21\u5f0f\uff0c\u4ee5\u53ca\u90fd\u4f7f\u7528Shortcut\u7ed3\u6784\u3002\u4f46\u662f\u4e0d\u540c\u70b9\u5462\uff1a<\/p>\n\n\n\n<ul><li>ResNet \u5148\u964d\u7ef4 (0.25\u500d)\u3001\u5377\u79ef\u3001\u518d\u5347\u7ef4\u3002<\/li><li><strong>MobileNetV2 \u5219\u662f \u5148\u5347\u7ef4 (6\u500d)\u3001\u5377\u79ef\u3001\u518d\u964d\u7ef4\u3002<\/strong><\/li><\/ul>\n\n\n\n<p>\u521a\u597dV2\u7684block\u521a\u597d\u4e0eResnet\u7684block\u76f8\u53cd\uff0c\u4f5c\u8005\u5c06\u5176\u547d\u540d\u4e3a<strong>Inverted residuals<\/strong>\u3002\u5c31\u662f\u8bba\u6587\u540d\u4e2d\u7684<strong>Inverted residuals<\/strong>\u3002<\/p>\n\n\n\n<h2>6\u3001EfficientNet<\/h2>\n\n\n\n<p>\u8be5\u8bba\u6587\u63d0\u51fa\u4e86\u4e00\u79cd\u65b0\u7684\u6a21\u578b\u7f29\u653e\u65b9\u6cd5\uff0c\u5b83\u4f7f\u7528\u4e00\u4e2a\u7b80\u5355\u800c\u9ad8\u6548\u7684\u590d\u5408\u7cfb\u6570\u6765\u4ee5\u66f4\u7ed3\u6784\u5316\u7684\u65b9\u5f0f\u653e\u5927 CNNs\u3002 \u4e0d\u50cf\u4f20\u7edf\u7684\u65b9\u6cd5\u90a3\u6837\u4efb\u610f\u7f29\u653e\u7f51\u7edc\u7ef4\u5ea6\uff0c\u5982\u5bbd\u5ea6\uff0c\u6df1\u5ea6\u548c\u5206\u8fa8\u7387\uff0c\u8be5\u8bba\u6587\u7684\u65b9\u6cd5\u7528\u4e00\u7cfb\u5217\u56fa\u5b9a\u7684\u5c3a\u5ea6\u7f29\u653e\u7cfb\u6570\u6765\u7edf\u4e00\u7f29\u653e\u7f51\u7edc\u7ef4\u5ea6\u3002 \u901a\u8fc7\u4f7f\u7528\u8fd9\u79cd\u65b0\u9896\u7684\u7f29\u653e\u65b9\u6cd5\u548c AutoML<sup><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/67834114#ref_5\">[5]<\/a><\/sup>&nbsp;\u6280\u672f\uff0c\u4f5c\u8005\u5c06<strong>\u8fd9\u79cd\u6a21\u578b\u79f0\u4e3a EfficientNets&nbsp;<\/strong>\uff0c\u5b83\u5177\u6709\u6700\u9ad8\u8fbe10\u500d\u7684\u6548\u7387(\u66f4\u5c0f\u3001\u66f4\u5feb)\u3002<\/p>\n\n\n\n<p><strong>\u6a21\u578b\u6269\u5c55\u7684\u6709\u6548\u6027\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u4f9d\u8d56\u4e8ebaseline\u7f51\u7edc<\/strong>\u3002\u4e3a\u4e86\u8fdb\u4e00\u6b65\u63d0\u9ad8\u6027\u80fd\uff0c\u4f5c\u8005\u8fd8\u5f00\u53d1\u4e86\u4e00\u4e2a\u65b0\u7684\u57fa\u7ebf\u7f51\u7edc\uff0c\u901a\u8fc7\u4f7f\u7528 AutoML MNAS \u6846\u67b6\u6267\u884c\u795e\u7ecf\u7ed3\u6784\u641c\u7d22\uff0c\u4f18\u5316\u4e86\u51c6\u786e\u6027\u548c\u6548\u7387\u3002 \u6700\u7ec8\u7684\u67b6\u6784\u4f7f\u7528\u79fb\u52a8\u53cd\u5411bottleneck\u5377\u79ef(MBConv) \uff0c\u7c7b\u4f3c\u4e8e mobileenetv2\u548c MnasNet\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"836\" height=\"217\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-248.png\" alt=\"\" class=\"wp-image-8154\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-248.png 836w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-248-300x78.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/09\/image-248-768x199.png 768w\" sizes=\"(max-width: 836px) 100vw, 836px\" \/><\/figure>\n\n\n\n<p>\u79fb\u52a8\u7ffb\u8f6c\u74f6\u9888\u5377\u79ef\uff08mobile inverted bottleneck convolution\uff0cMBConv\uff09\uff0c\u7c7b\u4f3c\u4e8e MobileNetV2 \u548c MnasNet\uff0c\u7531\u6df1\u5ea6\u53ef\u5206\u79bb\u5377\u79efDepthwise Convolution\u548cSENet\u6784\u6210\u3002<\/p>\n\n\n\n<p>\u6bcf\u4e2aMBConv\u7684\u7f51\u7edc\u7ed3\u6784\u5982\u4e0b\uff1a<br>MBConv = 1&#215;1\u5347\u7ef4 + Depthwise Convolution + SENet + 1&#215;1\u964d\u7ef4 + add<br><img src=\"https:\/\/img-blog.csdnimg.cn\/20200705123552839.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JibGluZ2JibGluZw==,size_16,color_FFFFFF,t_70\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" class=\"\"><\/p>\n\n\n\n<h3><a><\/a><a><\/a>SENet<\/h3>\n\n\n\n<p>\u8be5\u7f51\u7edc\u4e3a\u538b\u7f29\u4e0e\u6fc0\u53d1\u7f51\u7edc\uff08Squeeze-and-Excitation Network\uff0cSENet\uff09\uff0c\u5373\u6ce8\u610f\u529b\u673a\u5236\u3002\u8be5\u601d\u60f3\u7531Momenta\u516c\u53f8\u63d0\u51fa\uff0c\u5e76\u53d1\u4e8e2017CVPR\u3002SENet\u7f51\u7edc\u7684\u521b\u65b0\u70b9\u5728\u4e8e\u5173\u6ce8channel\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5e0c\u671b\u6a21\u578b\u53ef\u4ee5\u81ea\u52a8\u5b66\u4e60\u5230\u4e0d\u540cchannel\u7279\u5f81\u7684\u91cd\u8981\u7a0b\u5ea6\u3002<\/p>\n\n\n\n<p>\u5176\u4e2d\u7b2c\u4e00\u4e2aFC\u5c42\u964d\u7ef4\uff0c\u964d\u7ef4\u7cfb\u6570\u4e3ar\uff0c\u7136\u540eReLU\u6fc0\u6d3b\uff0c\u6700\u540e\u7684FC\u5c42\u6062\u590d\u539f\u59cb\u7684\u7ef4\u5ea6\u3002<br><img src=\"https:\/\/img-blog.csdnimg.cn\/2020070509250792.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JibGluZ2JibGluZw==,size_16,color_FFFFFF,t_70\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" class=\"\"><br><strong>SENet\u6dfb\u52a0\u4f4d\u7f6e\u793a\u610f\uff1a<\/strong><br><img src=\"https:\/\/img-blog.csdnimg.cn\/20200705095135417.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JibGluZ2JibGluZw==,size_16,color_FFFFFF,t_70\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" class=\"\"><br><strong>\u4ee3\u7801\u5b9e\u73b0<\/strong><\/p>\n\n\n\n<h2>7\u3001RegNet<\/h2>\n\n\n\n<p>\u672c\u6587\u7684\u57fa\u672c\u8d21\u732e\u6709\u4e09\u65b9\u9762\u3002<\/p>\n\n\n\n<ul><li>\u63d0\u51fa\u4e86\u8bbe\u8ba1\u7a7a\u95f4\u7684\u8bbe\u8ba1\u539f\u5219\u3002<\/li><li>\u6839\u636e\u8fd9\u4e9b\u539f\u5219\uff0c\u4e00\u4e2a\u6709\u6548\u7684\u8bbe\u8ba1\u7a7a\u95f4\u88ab\u5f15\u5165(RegNet)<\/li><li>\u4ecb\u7ecd\u4e86\u4e00\u7ec4SoTA\u7f51\u7edc(RegNetX\u548cRegNetY)\u3002<\/li><\/ul>\n\n\n\n<p>\u6211\u4eec\u9996\u5148\u8bbe\u8ba1\u4e86\u4e00\u4e2a AnyNet\uff0c\u5b83\u5305\u542b\u4e09\u4e2a\u90e8\u5206<\/p>\n\n\n\n<ol><li>Stem \u4e00\u4e2a\u7b80\u5355\u7684\u7f51\u7edc\u8f93\u5165\u5934<\/li><li>body \u7f51\u7edc\u4e2d\u4e3b\u8981\u7684\u8fd0\u7b97\u91cf\u90fd\u5728\u8fd9\u91cc<\/li><li>head \u7528\u4e8e\u9884\u6d4b\u5206\u7c7b\u7684\u8f93\u51fa\u5934<\/li><\/ol>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/img-blog.csdnimg.cn\/20201114082431980.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDEwNjkyOA==,size_16,color_FFFFFF,t_70#pic_center\" alt=\"\u6a21\u578b\u7f51\u7edc\u7ed3\u6784\u8bbe\u8ba1\"\/><\/figure>\n\n\n\n<p>\u6211\u4eec<strong>\u5c06 stem \u548c head \u56fa\u5b9a\u4e0b\u6765\uff0c\u5e76\u4e13\u6ce8\u4e8e\u7f51\u7edc body \u8bbe\u8ba1<\/strong>\u3002\u56e0\u4e3a body \u90e8\u5206\u7684\u53c2\u6570\u91cf\u6700\u591a\uff0c\u8fd0\u7b97\u91cf\u4e5f\u591a\uff0c\u8fd9\u90e8\u5206\u662f\u51b3\u5b9a\u7f51\u7edc\u51c6\u786e\u6027\u7684\u5173\u952e<\/p>\n\n\n\n<p>\u800c Body \u7ed3\u6784\uff0c\u901a\u5e38\u5305\u542b 4 \u4e2a stage\uff0c\u6bcf\u4e2a stage \u90fd\u4f1a\u8fdb\u884c<strong>\u964d\u91c7\u6837<\/strong>\u3002\u800c 1 \u4e2a<strong>&nbsp;stage \u662f\u7531\u591a\u4e2a block \u8fdb\u884c\u5806\u53e0\u5f97\u5230\u7684<\/strong>\u3002<\/p>\n\n\n\n<p>\u8bba\u6587\u4e2d\uff0c\u6211\u4eec\u7684 Block \u91c7\u53d6\u7684\u662f<strong>\u5e26\u6709\u7ec4\u5377\u79ef\u7684\u6b8b\u5dee BottleNeck Block<\/strong>\uff08\u5373 ResNext \u91cc\u7684\u7ed3\u6784\uff09\uff0c\u6211\u4eec\u79f0\u5728\u8fd9\u6837 Block \u9650\u5236\u6761\u4ef6\u4e0b\u7684\u641c\u7d22\u7a7a\u95f4\u4e3a AnyNetX \uff0cBlock \u7684\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/img-blog.csdnimg.cn\/20201114083945773.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDEwNjkyOA==,size_16,color_FFFFFF,t_70#pic_center\" alt=\"\u5e26\u6709\u7ec4\u5377\u79ef\u7684\u6b8b\u5deeBottleNeck Block\"\/><\/figure>\n\n\n\n<p>\u6b64\u65f6 AnyNetX \u4e2d\u6709<strong>&nbsp;16 \u4e2a\u81ea\u7531\u5ea6\u53ef\u4ee5\u8bbe\u8ba1\uff0c\u5305\u542b\u4e86 4 \u4e2a stage\uff0c\u6bcf\u4e2a stage \u6709 4 \u4e2a Block \u53c2\u6570\uff1a<\/strong><\/p>\n\n\n\n<ul><li>block \u7684\u6570\u76ee di<\/li><li>block \u7684\u5bbd\u5ea6 wi<\/li><li>Bottleneck \u7684\u901a\u9053\u7f29\u653e\u6bd4\u4f8b bi<\/li><li>\u5206\u7ec4\u6570\u76ee gi<\/li><\/ul>\n\n\n\n<p>\u6b64\u65f6\u6211\u4eec\u5728\u8fd9\u6837\u7684\u6761\u4ef6\u4e0b\u8fdb\u884c\u91c7\u6837\uff0c\u7f29\u5c0f\u7f51\u7edc\u8bbe\u8ba1\u7a7a\u95f4\uff1a<\/p>\n\n\n\n<ul><li>di \u2264 16<\/li><li>wi \u2264 1024 \uff08\u5176\u4e2d wi \u53ef\u88ab 8 \u6574\u9664\uff09<\/li><li>bi \u2208 {1, 2, 4}<\/li><li>gi \u2208 {1, 2, . . . , 32}<\/li><\/ul>\n\n\n\n<p>\u56e0\u6b64\u6211\u4eec\u5728 AnyNetX \u884d\u751f\u51fa\u5176\u4ed6\u641c\u7d22\u7a7a\u95f4<\/p>\n\n\n\n<ul><li>AnyNetXa \u5c31\u662f\u539f\u59cb\u7684 AnyNetX<\/li><li>AnyNetXb \u5728 AnyNetX \u57fa\u7840\u4e0a\uff0c<strong>\u6bcf\u4e2a stage \u4f7f\u7528\u76f8\u540c\u7684 Bottleneck \u7f29\u653e\u6bd4\u4f8b bi<\/strong>\u3002\u5e76\u4e14\u5b9e\u9a8c\u5f97\u51fa\u7f29\u653e\u6bd4\u4f8b bi &lt;= 2 \u65f6\u6700\u4f73\uff0c\u53c2\u8003\u4e0b\u56fe\u6700\u53f3\u8fb9\u5b50\u56fe<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/img-blog.csdnimg.cn\/20201114085103733.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDEwNjkyOA==,size_16,color_FFFFFF,t_70#pic_center\" alt=\"\u5bf9AnyNetXb\u548cAnyNetXc\u7684\u5206\u6790\"\/><\/figure>\n\n\n\n<ul><li>AnyNetXc \u5728 AnyNetXb \u7684\u57fa\u7840\u4e0a<strong>\u5171\u4eab\u76f8\u540c\u7684\u5206\u7ec4\u6570\u76ee gi<\/strong>\u3002\u7531\u4e0a\u56fe\u7684\u5de6\u56fe\u548c\u4e2d\u95f4\u56fe\u53ef\u5f97\u77e5\uff0c\u4ece A-&gt;C \u7684\u9636\u6bb5\uff0cEDF \u5e76\u6ca1\u6709\u53d7\u5230\u5f71\u54cd\uff0c\u800c\u6211\u4eec\u6b64\u65f6\u5df2\u7ecf\u51cf\u5c11\u4e86<\/li><li>AnyNetXd \u5728 AnyNetXc \u7684\u57fa\u7840\u4e0a<strong>\u9010\u6b65\u589e\u52a0 Block \u7684\u5bbd\u5ea6 wi<\/strong>\u3002\u6b64\u65f6\u7f51\u7edc\u6027\u80fd\u6709\u660e\u663e\u63d0\u5347!<\/li><\/ul>\n\n\n\n<p><a href=\"https:\/\/img-blog.csdnimg.cn\/20201114090819938.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDEwNjkyOA==,size_16,color_FFFFFF,t_70#pic_center\">AnyNetXd<\/a><\/p>\n\n\n\n<ul><li>AnyNetXe \u5728 AnyNetXd \u7684\u57fa\u7840\u4e0a\u5728\u9664\u4e86\u6700\u540e\u4e00\u4e2a stage \u4e0a\uff0c<strong>\u9010\u6b65\u589e\u52a0 Block \u7684\u6570\u91cf\uff08\u6df1\u5ea6\uff09di<\/strong>\u3002\u7f51\u7edc\u6027\u80fd\u7565\u5fae\u6709\u63d0\u5347<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/img-blog.csdnimg.cn\/20201114091037754.png#pic_center\" alt=\"AnyNetXe\"\/><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u56de\u987e21\u4e16\u7eaa10\u5e74\u4ee3\uff0c\u6df1\u5ea6\u5b66\u4e60\u53d6\u5f97\u4e86\u5de8\u5927\u7684\u8fdb\u6b65\uff0c\u4ea7\u751f\u4e86\u5de8\u5927\u7684\u5f71\u54cd\u3002\u4e3b\u8981\u9a71\u52a8\u529b\u662f\u795e\u7ecf\u7f51\u7edc\u7684\u590d\u5174\uff0c\u7279\u522b\u662f\u5377\u79ef\u795e\u7ecf\u7f51 &hellip; <a href=\"http:\/\/139.9.1.231\/index.php\/2022\/09\/24\/cnn_network\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u7ecf\u5178CNN\u7f51\u7edc\u7ed3\u6784<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,9],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/8136"}],"collection":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/comments?post=8136"}],"version-history":[{"count":24,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/8136\/revisions"}],"predecessor-version":[{"id":8172,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/8136\/revisions\/8172"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=8136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=8136"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=8136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}