{"id":3856,"date":"2021-07-04T22:28:44","date_gmt":"2021-07-04T14:28:44","guid":{"rendered":"http:\/\/www.sniper97.cn\/?p=3856"},"modified":"2021-07-04T22:28:44","modified_gmt":"2021-07-04T14:28:44","slug":"%e3%80%90%e6%b7%b1%e5%ba%a6%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b0%e3%80%91r-drop","status":"publish","type":"post","link":"http:\/\/www.sniper97.cn\/index.php\/note\/deep-learning\/note-deep-learning\/3856\/","title":{"rendered":"\u3010\u6df1\u5ea6\u5b66\u4e60\u7b14\u8bb0\u3011R-drop"},"content":{"rendered":"\n<p>\u76ee\u524d\u5927\u5bb6\u5bf9\u4e8e\u63d0\u5347bert\u7684\u80fd\u529b\u5927\u4f53\u4e0a\u53ef\u4ee5\u5206\u4e3a\u51e0\u4e2a\u65b9\u5411\u3002<\/p>\n\n\n<p>\u4e00\u4e2a\u662f\u5728embedding\u4e0a\u6dfb\u52a0\u6270\u52a8\uff08\u6bd4\u5982<a rel=\"noreferrer noopener\" aria-label=\"ConSERT\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\" href=\"https:\/\/arxiv.org\/abs\/2105.11741\" target=\"_blank\">ConSERT[ACL2021]<\/a>\uff0c\u548c<a href=\"http:\/\/www.sniper97.cn\/index.php\/note\/deep-learning\/note-deep-learning\/3732\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"\u5bf9\u6297\u8bad\u7ec3\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\">\u5bf9\u6297\u8bad\u7ec3<\/a>\uff0c\u4e3b\u8981\u76ee\u7684\u5c31\u662f\u901a\u8fc7\u5728embedding\u4e0a\u6dfb\u52a0\u968f\u673a\u6027\u4ece\u800c\u589e\u52a0\u6a21\u578b\u7684\u6cdb\u5316\u80fd\u529b\uff09\u3002<\/p>\n\n\n<p>\u4e00\u4e2a\u65b9\u5411\u662f\u5bf9bert\u7684\u8f93\u51fa\u8fdb\u884c\u5904\u7406\uff08\u6bd4\u5982<a rel=\"noreferrer noopener\" aria-label=\"bert-flow[EMNLP 2020]\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\" href=\"https:\/\/arxiv.org\/abs\/2011.05864\" target=\"_blank\">bert-flow[EMNLP 2020]<\/a>\uff0c<a rel=\"noreferrer noopener\" aria-label=\"bert-whitening[]\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\" href=\"https:\/\/arxiv.org\/abs\/2103.15316\" target=\"_blank\">bert-whitening<\/a>)<\/p>\n\n\n<p>\u8fd8\u6709\u5c31\u662f\u4e0d\u65ad\u7684\u6311\u6218\u66f4\u6709\u96be\u5ea6\u7684\u9884\u8bad\u7ec3\u4efb\u52a1\uff0c\u6bd4\u5982NSP\u6539\u6210SOP\u7b49\u7b49\u3002<\/p>\n\n\n<p>\u4eca\u5929\u4ecb\u7ecd\u4e00\u4e2a<a rel=\"noreferrer noopener\" aria-label=\"R-drop\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\" href=\"https:\/\/arxiv.org\/abs\/2106.14448\" target=\"_blank\">R-drop<\/a>\uff0c\u4ecb\u7ecd\u4e4b\u524d\u9996\u5148\u5b9a\u4e49\u4e00\u4e0b\u672f\u8bed<\/p>\n\n\n<ul><li>\uff08\u5927\uff09\u6a21\u578b\uff1a\u5e26\u6709dropout\u7684\u6a21\u578b<\/li><li>\u5b50\u6a21\u578b\uff1a\u5f53\u6a21\u578b\u4f7f\u7528dropout\u65f6\uff0c\u672a\u906e\u853d\u7684\u795e\u7ecf\u5143\u7ec4\u6210\u7684\u6a21\u578b<\/li><\/ul>\n\n\n<p>\u4f17\u6240\u5468\u77e5\uff0cdropout\u4f1a\u968f\u673a\u4f7f\u4e00\u4e9b\u5143\u7d20\u4e3a0\uff0c\u901a\u8fc7\u8fd9\u4e2a\u5b50\u6a21\u578b\u8bad\u7ec3\uff0c\u6700\u7ec8\u7684\u7ed3\u679c\u5c31\u662f\u8ba9\u5927\u6a21\u578b\u4e2d\u6709\u591a\u79cd\u89e3\u51b3\u95ee\u9898\u7684\u5b50\u6a21\u578b\uff0c\u4ece\u800c\u63d0\u5347\u6a21\u578b\u7684\u6cdb\u5316\u80fd\u529b\u3002<\/p>\n\n\n<p>\u90a3\u5982\u679c\u6211\u4eec\u5c06\u540c\u4e00\u4e2a\u6837\u672c\u76f4\u63a5\u9001\u5165\u4e00\u4e2a\u5e26\u6709dropout\u7684\u6a21\u578b\u4e24\u6b21\u5462\uff1f\u7136\u540e\u8ba1\u7b97\u8fd9\u4e24\u53e5\u8bdd\u7684crossentry loss\u5462\uff1f\u8fd9\u662f\u4e0d\u662f\u76f8\u5f53\u4e8e\u591a\u4e86\u4e00\u6761\u6570\u636e\u5462\uff1f\u7b54\u6848\u662f\u80af\u5b9a\u7684\u3002<\/p>\n\n\n<p style=\"text-align:left\">\u800cR-drop\u5728\u8fd9\u4e2a\u57fa\u7840\u4e0a\u53c8\u589e\u52a0\u4e86\u4e00\u4e2a\u5f3a\u5e72\u9884\u9879\uff0c\u5c31\u662f\u4e0d\u4ec5\u9884\u6d4b\u7ed3\u679c\u8981\u4e00\u6837\uff0c\u8fd8\u8981\u4fdd\u8bc1\u8fd9\u4e24\u53e5\u8bdd\u7684<a href=\"http:\/\/www.sniper97.cn\/index.php\/note\/deep-learning\/base\/3886\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"KL\u6563\u5ea6\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\">KL\u6563\u5ea6<\/a>\u8f83\u4f4e\uff0c\u8fd9\u5c31\u4fdd\u8bc1\u4e86\u540c\u4e00\u4e2a\u53e5\u5b50\u5728\u4e0d\u540c\u7684\u5b50\u6a21\u578b\u4e0b\u7684\u8f93\u51fa\u5c3d\u53ef\u80fd\u4e00\u81f4\u3002\u800c\u8fd9\u4e2a\u7ea6\u675f\u4e5f\u5e76\u4e0d\u4e00\u5b9a\u662fKL\uff0c\u5bf9\u4e8e\u4e0d\u540c\u7684\u4efb\u52a1\u53ef\u4ee5\u5207\u6362\u5230\u4e0d\u540c\u7684\u7ea6\u675f\u5373\u53ef\u3002<\/p>\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/kexue.fm\/usr\/uploads\/2021\/07\/2898424596.png\" alt=\"\"\/><\/figure>\n\n\n<p>\u5982\u56fe\uff0c\u6700\u7ec8\u5bf9loss1\u548closs2\u8fdb\u884c\u52a0\u6743\u548c\u5373\u53ef\u3002<\/p>\n\n\n<p>\u6700\u540e\u7684\u6548\u679c\u63d0\u5347\u5341\u5206\u660e\u663e\u3002<\/p>\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/kexue.fm\/usr\/uploads\/2021\/07\/338095835.png\" alt=\"\"\/><\/figure>\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/kexue.fm\/usr\/uploads\/2021\/07\/174591543.png\" alt=\"\"\/><\/figure>\n\n\n<p>\u8fd9\u4e2a\u601d\u8def\u5b9e\u5728\u4e0d\u5f97\u4e0d\u8bf4\uff0c\u662f\u4e00\u4e2a\u5341\u5206\u7b80\u5355\u6709\u6548\u7684\u65b9\u6cd5\uff0c\u5728\u4e2d\u6587\u5206\u7c7b\u6570\u636e\u96c6\u4e0a\u6709\u63a5\u8fd12\u4e2a\u70b9\u7684\u63d0\u5347\uff0c\u800c\u5b9e\u73b0\u8d77\u6765\u4e5f\u5341\u5206\u7b80\u5355\u3002<\/p>\n\n\n<p>\u53ea\u9700\u8981\u5c06\u6570\u636e\u8fdb\u884c\u590d\u5236\u4e00\u4efd\uff0c\u7136\u540e\u5bf9loss\u8fdb\u884c\u6539\u53d8\u5373\u53ef\uff08\u4e0b\u9762\u4ee3\u7801\u5c06\u6570\u636e\u8fde\u7eed\u590d\u5236\uff0c\u6bd4\u5982ABC\u53d8\u4e3aAABBCC\u3002<\/p>\n\n\n<pre class=\"wp-block-code\"><code>from keras.losses import kullback_leibler_divergence as kld\ndef categorical_crossentropy_with_rdrop(y_true, y_pred):\n    \"\"\"\u914d\u5408\u4e0a\u8ff0\u751f\u6210\u5668\u7684R-Drop Loss\n    \u5176\u5b9eloss_kl\u7684\u9664\u4ee54\uff0c\u662f\u4e3a\u4e86\u5728\u6570\u91cf\u4e0a\u5bf9\u9f50\u516c\u5f0f\u63cf\u8ff0\u7ed3\u679c\u3002\n    \"\"\"\n    loss_ce = K.categorical_crossentropy(y_true, y_pred)  # \u539f\u6765\u7684loss\n    loss_kl = kld(y_pred[::2], y_pred[1::2]) + kld(y_pred[1::2], y_pred[::2])\n    return K.mean(loss_ce) + K.mean(loss_kl) \/ 4 * alpha<\/code><\/pre>\n\n\n<h3 class=\"wp-block-heading\">\u90a3\u4e48R-Drop\u4e3a\u4ec0\u4e48\u6709\u6548\u5462\uff1f<\/h3>\n\n\n<p>\u8981\u8bf4R-Drop\u4e3a\u4ec0\u4e48\u6709\u6548\u8981\u8bf4Dropout\u4e3a\u4ec0\u4e48\u6709\u5c40\u9650\u6027\u3002<\/p>\n\n\n<p>\u5176\u5b9e\u4f7f\u7528Dropout\u65f6\uff0c\u8bad\u7ec3\u9636\u6bb5\u548c\u9884\u6d4b\u9636\u6bb5\u662f\u6709\u4e0d\u540c\u7684\uff0c\u6211\u4eec\u8bad\u7ec3\u65f6\uff0cdropout\u542f\u52a8\uff0c\u8fd9\u65f6\u5019\u7684\u8bad\u7ec3\u76ee\u6807\u5176\u5b9e\u662f\u6a21\u578b\u878d\u5408\u2014\u2014\u901a\u8fc7\u6570\u4e2a\u5b50\u6a21\u578b\uff0c\u8fbe\u5230\u5927\u6a21\u578b\u7ed3\u679c\u7684\u63d0\u9ad8\u3002<\/p>\n\n\n<p>\u800c\u9884\u6d4b\u8fc7\u7a0b\uff0c\u7531\u4e8e\u5173\u95ed\u4e86dropout\uff0c\u5e76\u6ca1\u6709\u8fd9\u4e9b\u201c\u5b50\u6a21\u578b\u201d\u8fdb\u884c\u5de5\u4f5c\uff0c\u800c\u662f\u76f4\u63a5\u8f93\u51fa\u7ed3\u679c\u2014\u2014\u8fd9\u76f8\u5f53\u4e8e\u4ece\u6a21\u578b\u5e73\u5747\u53d8\u6210\u4e86\u6743\u91cd\u5e73\u5747\u3002<\/p>\n\n\n<p>\u800cR-Drop\u901a\u8fc7\u6dfb\u52a0\u4e86\u4e00\u4e2a\u7ea6\u675f\u9879\uff0c\u5f3a\u8feb\u4e0d\u540c\u7684\u5b50\u6a21\u578b\u6709\u76f8\u540c\u7684\u8f93\u51fa\uff0c\u4e5f\u5c31\u662f\u5f3a\u8feb\u201c\u6a21\u578b\u5e73\u5747\u201d\u63a5\u8fd1\u201c\u6743\u91cd\u5e73\u5747\u201d\uff0c\u56e0\u6b64\u5728\u5173\u95eddropout\u4e4b\u540e\u4f1a\u6709\u6027\u80fd\u4e0a\u7684\u63d0\u5347\u3002<\/p>\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n<p>\u800c\u7531\u4e8e\u5f15\u5165\u4e86\u4e24\u6bb5loss\uff0c\u5176\u4e2dKL\u9879\u5e76\u4e0d\u4f9d\u8d56\u6807\u7b7e\uff0c\u56e0\u6b64R-Drop\u751a\u81f3\u8fd8\u53ef\u4ee5\u534a\u76d1\u7763\u8bad\u7ec3\uff0c\u8ba1\u7b97\u4e00\u8f6eCE loss\uff0c\u8ba1\u7b97\u4e00\u8f6eKL loss \u4ece\u800c\u505a\u5230\u534a\u76d1\u7763\u7684\u8bad\u7ec3\u3002<\/p>\n\n\n<p>PS\uff1a\u8be5\u65b9\u6cd5\u5728\u6211\u4eec<a rel=\"noreferrer noopener\" aria-label=\"ECISA\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\" href=\"http:\/\/www.sniper97.cn\/index.php\/note\/deep-learning\/note-deep-learning\/3914\/\" target=\"_blank\">ECISA<\/a>\u4e2d\u7684\u5927\u90e8\u5206\u5b9e\u9a8c\u6ca1\u6709\u4ec0\u4e48\u63d0\u5347\uff0c\u53ea\u5728\u76f8\u5bf9\u8f83\u5c0f\u4e00\u90e8\u5206\u5b9e\u9a8c\u4e2d\u6709\u63d0\u5347\u3002\u76ee\u524d\u8fd8\u4e0d\u592a\u6e05\u695a\u5177\u4f53\u539f\u56e0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u524d\u5927\u5bb6\u5bf9\u4e8e\u63d0\u5347bert\u7684\u80fd\u529b\u5927\u4f53\u4e0a\u53ef\u4ee5\u5206\u4e3a\u51e0\u4e2a\u65b9\u5411\u3002 \u4e00\u4e2a\u662f\u5728embedding\u4e0a\u6dfb\u52a0\u6270\u52a8\uff08\u6bd4\u5982C [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[9],"tags":[37,39,41],"views":8201,"_links":{"self":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/posts\/3856"}],"collection":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/comments?post=3856"}],"version-history":[{"count":0,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/posts\/3856\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/media?parent=3856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/categories?post=3856"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.sniper97.cn\/index.php\/wp-json\/wp\/v2\/tags?post=3856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}