{"id":8889,"date":"2024-07-30T12:57:36","date_gmt":"2024-07-30T04:57:36","guid":{"rendered":"https:\/\/17aitech.com\/?p=8889"},"modified":"2024-10-08T15:13:42","modified_gmt":"2024-10-08T07:13:42","slug":"%e3%80%90%e8%af%be%e7%a8%8b%e6%80%bb%e7%bb%93%e3%80%91day17%ef%bc%88%e4%b8%ad%ef%bc%89%ef%bc%9alstm%e5%8f%8agru%e6%a8%a1%e5%9e%8b%e7%ae%80%e4%bb%8b","status":"publish","type":"post","link":"https:\/\/17aitech.com\/?p=8889","title":{"rendered":"\u3010\u8bfe\u7a0b\u603b\u7ed3\u3011Day17\uff08\u4e2d\uff09\uff1aLSTM\u53caGRU\u6a21\u578b\u7b80\u4ecb"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_78 ez-toc-wrap-left-text counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u6587\u7ae0\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/17aitech.com\/?p=8889\/#%E5%89%8D%E8%A8%80\" >\u524d\u8a00<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/17aitech.com\/?p=8889\/#RNN%E5%8F%91%E5%B1%95%E5%8E%86%E5%8F%B2\" >RNN\u53d1\u5c55\u5386\u53f2<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/17aitech.com\/?p=8889\/#%E6%97%A9%E6%9C%9F%E5%8F%91%E5%B1%95\" >\u65e9\u671f\u53d1\u5c55<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/17aitech.com\/?p=8889\/#%E9%97%AE%E9%A2%98%E4%B8%8E%E6%8C%91%E6%88%98\" >\u95ee\u9898\u4e0e\u6311\u6218<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/17aitech.com\/?p=8889\/#LSTM_%E5%92%8C_GRU_%E7%9A%84%E6%8F%90%E5%87%BA\" >LSTM \u548c GRU \u7684\u63d0\u51fa<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/17aitech.com\/?p=8889\/#Transformer_%E7%9A%84%E5%87%BA%E7%8E%B0\" >Transformer \u7684\u51fa\u73b0<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/17aitech.com\/?p=8889\/#LSTM%E6%A8%A1%E5%9E%8B\" >LSTM\u6a21\u578b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/17aitech.com\/?p=8889\/#LSTM%E6%A8%A1%E5%9E%8B%E4%BB%8B%E7%BB%8D\" >LSTM\u6a21\u578b\u4ecb\u7ecd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/17aitech.com\/?p=8889\/#LSTM%E6%A8%A1%E5%9E%8B%E7%BB%93%E6%9E%84\" >LSTM\u6a21\u578b\u7ed3\u6784<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/17aitech.com\/?p=8889\/#LSTM%E7%9A%84API%E4%BD%BF%E7%94%A8\" >LSTM\u7684API\u4f7f\u7528<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/17aitech.com\/?p=8889\/#%E8%87%AA%E5%8A%A8%E5%BE%AA%E7%8E%AF\" >\u81ea\u52a8\u5faa\u73af<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/17aitech.com\/?p=8889\/#%E6%89%8B%E5%86%99%E5%BE%AA%E7%8E%AF\" >\u624b\u5199\u5faa\u73af<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/17aitech.com\/?p=8889\/#GRU%E6%A8%A1%E5%9E%8B\" >GRU\u6a21\u578b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/17aitech.com\/?p=8889\/#GRU%E6%A8%A1%E5%9E%8B%E4%BB%8B%E7%BB%8D\" >GRU\u6a21\u578b\u4ecb\u7ecd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/17aitech.com\/?p=8889\/#GRU%E6%A8%A1%E5%9E%8B%E7%BB%93%E6%9E%84\" >GRU\u6a21\u578b\u7ed3\u6784<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/17aitech.com\/?p=8889\/#GRU%E7%9A%84API%E4%BD%BF%E7%94%A8\" >GRU\u7684API\u4f7f\u7528<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/17aitech.com\/?p=8889\/#%E8%87%AA%E5%8A%A8%E5%BE%AA%E7%8E%AF-2\" >\u81ea\u52a8\u5faa\u73af<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/17aitech.com\/?p=8889\/#%E6%89%8B%E5%86%99%E5%BE%AA%E7%8E%AF-2\" >\u624b\u5199\u5faa\u73af<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/17aitech.com\/?p=8889\/#RNN%E3%80%81LSTM%E3%80%81GRU_%E7%9A%84%E4%BC%98%E5%8A%BF%E4%B8%8E%E5%8A%A3%E5%8A%BF\" >RNN\u3001LSTM\u3001GRU \u7684\u4f18\u52bf\u4e0e\u52a3\u52bf<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/17aitech.com\/?p=8889\/#RNN%E4%BC%98%E5%8A%BF%E4%B8%8E%E5%8A%A3%E5%8A%BF\" >RNN\u4f18\u52bf\u4e0e\u52a3\u52bf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/17aitech.com\/?p=8889\/#LSTM%E4%BC%98%E5%8A%BF%E4%B8%8E%E5%8A%A3%E5%8A%BF\" >LSTM\u4f18\u52bf\u4e0e\u52a3\u52bf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/17aitech.com\/?p=8889\/#GRU%E4%BC%98%E5%8A%BF%E4%B8%8E%E5%8A%A3%E5%8A%BF\" >GRU\u4f18\u52bf\u4e0e\u52a3\u52bf<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/17aitech.com\/?p=8889\/#%E5%86%85%E5%AE%B9%E5%B0%8F%E7%BB%93\" >\u5185\u5bb9\u5c0f\u7ed3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/17aitech.com\/?p=8889\/#%E5%8F%82%E8%80%83%E8%B5%84%E6%96%99\" >\u53c2\u8003\u8d44\u6599<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%E5%89%8D%E8%A8%80\"><\/span>\u524d\u8a00<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5728\u4e0a\u4e00\u7ae0<a href=\"https:\/\/17aitech.com\/?p=8758\">\u3010\u8bfe\u7a0b\u603b\u7ed3\u3011Day17(\u4e0a)\uff1aNLP\u81ea\u7136\u8bed\u8a00\u5904\u7406\u53caRNN\u7f51\u7edc<\/a>\u6211\u4eec\u521d\u6b65\u4e86\u89e3RNN\u7684\u57fa\u672c\u6982\u5ff5\u548c\u539f\u7406\u3002\u672c\u7ae0\u5185\u5bb9\uff0c\u6211\u4eec\u5c06\u7ee7\u7eed\u4e86\u89e3RNN\u7684\u53d8\u79cd\u6a21\u578b\uff0c\u5982LSTM\u548cGRU\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"RNN%E5%8F%91%E5%B1%95%E5%8E%86%E5%8F%B2\"><\/span>RNN\u53d1\u5c55\u5386\u53f2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%E6%97%A9%E6%9C%9F%E5%8F%91%E5%B1%95\"><\/span>\u65e9\u671f\u53d1\u5c55<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>1980\u5e74\u4ee3<\/strong>\uff1aRNN \u7684\u6982\u5ff5\u6700\u65e9\u7531 David Rumelhart \u548c Geoffrey Hinton \u63d0\u51fa\u3002\u65e9\u671f\u7684 RNN \u7ed3\u6784\u76f8\u5bf9\u7b80\u5355\uff0c\u4e3b\u8981\u7528\u4e8e\u5b57\u7b26\u7ea7\u522b\u7684\u5e8f\u5217\u5904\u7406\u3002<\/li>\n<li><strong>1986\u5e74<\/strong>\uff1aRumelhart \u7b49\u4eba\u63d0\u51fa\u7684\u53cd\u5411\u4f20\u64ad\u7b97\u6cd5\uff08Backpropagation Through Time, BPTT\uff09\u4f7f\u5f97 RNN \u7684\u8bad\u7ec3\u53d8\u5f97\u53ef\u884c\u3002<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%E9%97%AE%E9%A2%98%E4%B8%8E%E6%8C%91%E6%88%98\"><\/span>\u95ee\u9898\u4e0e\u6311\u6218<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>1990\u5e74\u4ee3<\/strong>\uff1a\u968f\u7740 RNN \u7684\u5e94\u7528\u589e\u591a\uff0c\u7814\u7a76\u4eba\u5458\u53d1\u73b0\u4f20\u7edf RNN \u5728\u5904\u7406\u957f\u5e8f\u5217\u65f6\u9762\u4e34\u68af\u5ea6\u6d88\u5931\u548c\u68af\u5ea6\u7206\u70b8\u7684\u95ee\u9898\uff0c\u9650\u5236\u4e86\u5176\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u6709\u6548\u6027\u3002<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"LSTM_%E5%92%8C_GRU_%E7%9A%84%E6%8F%90%E5%87%BA\"><\/span>LSTM \u548c GRU \u7684\u63d0\u51fa<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>1997\u5e74<\/strong>\uff1aSepp Hochreiter \u548c J\u00fcrgen Schmidhuber \u63d0\u51fa\u4e86\u957f\u77ed\u671f\u8bb0\u5fc6\u7f51\u7edc\uff08LSTM\uff09\uff0c\u5f15\u5165\u4e86\u95e8\u63a7\u673a\u5236\uff0c\u6709\u6548\u89e3\u51b3\u4e86\u4f20\u7edf RNN \u7684\u68af\u5ea6\u6d88\u5931\u95ee\u9898\u3002<\/li>\n<li><strong>2014\u5e74<\/strong>\uff1a\u95e8\u63a7\u5faa\u73af\u5355\u5143\uff08GRU\uff09\u88ab\u63d0\u51fa\uff0c\u4f5c\u4e3a LSTM \u7684\u7b80\u5316\u7248\u672c\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4e86 RNN \u7684\u6027\u80fd\u548c\u8bad\u7ec3\u6548\u7387\u3002<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Transformer_%E7%9A%84%E5%87%BA%E7%8E%B0\"><\/span>Transformer \u7684\u51fa\u73b0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>2017\u5e74<\/strong>\uff1aVaswani \u7b49\u4eba\u63d0\u51fa\u4e86 Transformer \u6a21\u578b\uff0c\u5b8c\u5168\u57fa\u4e8e\u81ea\u6ce8\u610f\u529b\u673a\u5236\uff0c\u6446\u8131\u4e86 RNN \u7684\u7ed3\u6784\u9650\u5236\u3002Transformer \u80fd\u591f\u5e76\u884c\u5904\u7406\u5e8f\u5217\u6570\u636e\uff0c\u663e\u8457\u63d0\u9ad8\u4e86\u8bad\u7ec3\u901f\u5ea6\u548c\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"LSTM%E6%A8%A1%E5%9E%8B\"><\/span>LSTM\u6a21\u578b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"LSTM%E6%A8%A1%E5%9E%8B%E4%BB%8B%E7%BB%8D\"><\/span>LSTM\u6a21\u578b\u4ecb\u7ecd<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u957f\u77ed\u671f\u8bb0\u5fc6\u7f51\u7edc\uff08LSTM\uff09\u662f\u4e00\u79cd\u7279\u6b8a\u7c7b\u578b\u7684\u9012\u5f52\u795e\u7ecf\u7f51\u7edc\uff08RNN\uff09\uff0c\u65e8\u5728\u89e3\u51b3\u4f20\u7edf RNN \u5728\u5904\u7406\u957f\u5e8f\u5217\u65f6\u5e38\u89c1\u7684\u68af\u5ea6\u6d88\u5931\u548c\u68af\u5ea6\u7206\u70b8\u95ee\u9898\u3002LSTM \u901a\u8fc7\u5f15\u5165\u95e8\u63a7\u673a\u5236\uff0c\u80fd\u591f\u6709\u6548\u5730\u6355\u6349\u957f\u671f\u4f9d\u8d56\u5173\u7cfb\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"LSTM%E6%A8%A1%E5%9E%8B%E7%BB%93%E6%9E%84\"><\/span>LSTM\u6a21\u578b\u7ed3\u6784<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/17aitech.com\/wp-content\/uploads\/2024\/07\/LSTM\u7ed3\u6784\u793a\u610f\u56fe.png\" data-fancybox=\"images\" data-fancybox=\"gallery\"><img decoding=\"async\" src=\"https:\/\/17aitech.com\/wp-content\/uploads\/2024\/07\/LSTM\u7ed3\u6784\u793a\u610f\u56fe.png\" alt=\"\" \/><\/a><\/p>\n<p>LSTM \u5355\u5143\u4e3b\u8981\u7531\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\u7ec4\u6210\uff1a<\/p>\n<ul>\n<li>\u7b2c\u4e00\u90e8\u5206\uff1a\u9057\u5fd8\u95e8\uff08Forget Gate\uff09\n<ul>\n<li>\u4f5c\u7528\uff1a\u9057\u5fd8\u4e0d\u60f3\u8981\u7684\u3002\u8f93\u51fa\u5728 0 \u5230 1 \u4e4b\u95f4\u7684\u503c\uff0c0 \u8868\u793a\u5b8c\u5168\u9057\u5fd8\uff0c1 \u8868\u793a\u5b8c\u5168\u4fdd\u7559\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u7b2c\u4e8c\u90e8\u5206\uff1a\u8f93\u5165\u95e8\uff08Input Gate\uff09\n<ul>\n<li>\u4f5c\u7528\uff1a\u8f93\u51fa\u77ed\u671f\u72b6\u6001\uff0c\u51b3\u5b9a\u5f53\u524d\u8f93\u5165 (x_t) \u6709\u591a\u5c11\u4fe1\u606f\u88ab\u6dfb\u52a0\u5230\u5355\u5143\u72b6\u6001\u4e2d\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u7b2c\u4e09\u90e8\u5206\uff1a\u8f93\u51fa\u95e8\uff08Output Gate\uff09\n<ul>\n<li>\u4f5c\u7528\uff1a\u51b3\u5b9a\u5f53\u524d\u5355\u5143\u72b6\u6001 (C_t) \u7684\u591a\u5c11\u4fe1\u606f\u5c06\u8f93\u51fa\u5230\u9690\u72b6\u6001\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"LSTM%E7%9A%84API%E4%BD%BF%E7%94%A8\"><\/span>LSTM\u7684API\u4f7f\u7528<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"%E8%87%AA%E5%8A%A8%E5%BE%AA%E7%8E%AF\"><\/span>\u81ea\u52a8\u5faa\u73af<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<pre><code class=\"language-python\"># \u521b\u5efa\u6a21\u578b\nlstm = nn.LSTM(input_size=128, hidden_size=256)\n\n# \u5b9a\u4e49\u8f93\u5165(\u5f85\u5904\u7406\u4fe1\u606f)\nX = torch.randn(13, 2, 128)\n# \u521d\u59cb\u7684\u957f\u671f\u72b6\u6001\nc0 = torch.zeros(1, 2, 256, dtype=torch.float32)\n# \u521d\u59cb\u7684\u77ed\u671f\u72b6\u6001\nh0 = torch.zeros(1, 2, 256, dtype=torch.float32)\n\n# \u6267\u884c\u5faa\u73af\nout, (hn, cn) = lstm(X, (h0, c0))\nout.shape, hn.shape, cn.shape\n# \u8f93\u51fa\u7ed3\u679c\n# (torch.Size([13, 2, 256]), torch.Size([1, 2, 256]), torch.Size([1, 2, 256]))<\/code><\/pre>\n<h4><span class=\"ez-toc-section\" id=\"%E6%89%8B%E5%86%99%E5%BE%AA%E7%8E%AF\"><\/span>\u624b\u5199\u5faa\u73af<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<pre><code class=\"language-python\"># \u521b\u5efa\u624b\u52a8\u5faa\u73af\nlstm_cell = nn.LSTMCell(input_size=128, hidden_size=256)\n\n# \u5b9a\u4e49\u8f93\u5165(\u5f85\u5904\u7406\u4fe1\u606f)\nX = torch.randn(13, 2, 128)\nc0 = torch.zeros(2, 256, dtype=torch.float32)\nh0 = torch.zeros(2, 256, dtype=torch.float32)\n\nout = []\n# \u5faa\u73af\u5904\u7406\nfor x in X:\n    h0, c0 = lstm_cell(x, (h0, c0))\n    out.append(h0)\n# \u5c06\u7ed3\u679c\u5806\u53e0\nout = torch.stack(out)\nlen(out), out.shape\n# \u8f93\u51fa\u7ed3\u679c\n# (13, torch.Size([13, 2, 256]))<\/code><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"GRU%E6%A8%A1%E5%9E%8B\"><\/span>GRU\u6a21\u578b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"GRU%E6%A8%A1%E5%9E%8B%E4%BB%8B%E7%BB%8D\"><\/span>GRU\u6a21\u578b\u4ecb\u7ecd<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u95e8\u63a7\u5faa\u73af\u5355\u5143\uff08Gated Recurrent Unit, GRU\uff09\u662f\u4e00\u79cd\u6539\u8fdb\u7684\u9012\u5f52\u795e\u7ecf\u7f51\u7edc\uff08RNN\uff09\u67b6\u6784\uff0c\u65e8\u5728\u89e3\u51b3\u4f20\u7edf RNN \u5728\u5904\u7406\u957f\u5e8f\u5217\u65f6\u9047\u5230\u7684\u68af\u5ea6\u6d88\u5931\u95ee\u9898\u3002GRU \u4e8e 2014 \u5e74\u7531 Kyunghyun Cho \u7b49\u4eba\u63d0\u51fa\uff0c\u4f5c\u4e3a LSTM \u7684\u4e00\u79cd\u7b80\u5316\u7248\u672c\uff0c\u5177\u6709\u66f4\u5c11\u7684\u53c2\u6570\u548c\u66f4\u9ad8\u7684\u8ba1\u7b97\u6548\u7387\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"GRU%E6%A8%A1%E5%9E%8B%E7%BB%93%E6%9E%84\"><\/span>GRU\u6a21\u578b\u7ed3\u6784<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/17aitech.com\/wp-content\/uploads\/2024\/07\/GRU\u6a21\u578b\u7ed3\u6784\u793a\u610f\u56fe.png\" data-fancybox=\"images\" data-fancybox=\"gallery\"><img decoding=\"async\" src=\"https:\/\/17aitech.com\/wp-content\/uploads\/2024\/07\/GRU\u6a21\u578b\u7ed3\u6784\u793a\u610f\u56fe.png\" alt=\"\" \/><\/a><br \/>\nGRU \u4e3b\u8981\u7531\u4ee5\u4e0b\u4e24\u4e2a\u95e8\u63a7\u673a\u5236\u7ec4\u6210\uff1a<\/p>\n<ul>\n<li>\u66f4\u65b0\u95e8\uff08Update Gate\uff09\n<ul>\n<li><strong>\u4f5c\u7528<\/strong>\uff1a\u51b3\u5b9a\u5f53\u524d\u9690\u72b6\u6001 (h<em>t) \u4e2d\u4fdd\u7559\u591a\u5c11\u524d\u4e00\u4e2a\u9690\u72b6\u6001 (h<\/em>{t-1}) \u7684\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u91cd\u7f6e\u95e8\uff08Reset Gate\uff09\n<ul>\n<li><strong>\u4f5c\u7528<\/strong>\uff1a\u51b3\u5b9a\u5728\u8ba1\u7b97\u5f53\u524d\u9690\u72b6\u6001\u65f6\uff0c\u524d\u4e00\u4e2a\u9690\u72b6\u6001\u7684\u4fe1\u606f\u88ab\u9057\u5fd8\u7684\u7a0b\u5ea6\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"GRU%E7%9A%84API%E4%BD%BF%E7%94%A8\"><\/span>GRU\u7684API\u4f7f\u7528<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"%E8%87%AA%E5%8A%A8%E5%BE%AA%E7%8E%AF-2\"><\/span>\u81ea\u52a8\u5faa\u73af<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<pre><code class=\"language-python\"># \u521b\u5efa\u6a21\u578b\ngru = nn.GRU(input_size=128, hidden_size=256)\n\n# \u5b9a\u4e49\u8f93\u5165(\u5f85\u5904\u7406\u4fe1\u606f)\nX = torch.randn(13, 2, 128)\n# \u521d\u59cb\u7684\u77ed\u671f\u72b6\u6001\nh0 = torch.zeros(1, 2, 256, dtype=torch.float32)\n\n# \u6267\u884c\u5faa\u73af\noutput, hn = gru(X, h0)\noutput.shape, hn.shape\n# \u8f93\u51fa\u7ed3\u679c\n# (torch.Size([13, 2, 256]), torch.Size([1, 2, 256]))<\/code><\/pre>\n<h4><span class=\"ez-toc-section\" id=\"%E6%89%8B%E5%86%99%E5%BE%AA%E7%8E%AF-2\"><\/span>\u624b\u5199\u5faa\u73af<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<pre><code class=\"language-python\">gru_cell = nn.GRUCell(input_size=128, hidden_size=256)\n\nX = torch.randn(13, 2, 128)\nh0 = torch.zeros(2, 256, dtype=torch.float32)\n\nout = []\nfor x in X:\n    h0 = gru_cell(x, h0)\n    out.append(h0)\nout = torch.stack(out)\nlen(out), out.shape<\/code><\/pre>\n<h2><span class=\"ez-toc-section\" id=\"RNN%E3%80%81LSTM%E3%80%81GRU_%E7%9A%84%E4%BC%98%E5%8A%BF%E4%B8%8E%E5%8A%A3%E5%8A%BF\"><\/span>RNN\u3001LSTM\u3001GRU \u7684\u4f18\u52bf\u4e0e\u52a3\u52bf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"RNN%E4%BC%98%E5%8A%BF%E4%B8%8E%E5%8A%A3%E5%8A%BF\"><\/span>RNN\u4f18\u52bf\u4e0e\u52a3\u52bf<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u4f18\u52bf<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>\u7b80\u5355\u6027<\/strong>\uff1aRNN \u7ed3\u6784\u76f8\u5bf9\u7b80\u5355\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u5b9e\u73b0\u3002<\/li>\n<li><strong>\u9002\u5408\u5e8f\u5217\u6570\u636e<\/strong>\uff1aRNN \u80fd\u591f\u5904\u7406\u4efb\u610f\u957f\u5ea6\u7684\u5e8f\u5217\u6570\u636e(\u4f8b\u5982\uff1a\u80a1\u7968\u6570\u636e\u3001\u9500\u552e\u6570\u636e\u3001\u81ea\u7136\u8bed\u8a00\u3001\u8bed\u97f3\u4fe1\u53f7\u7b49)\uff0c\u5b9e\u73b0\u4e86<code>\u7edf\u8ba1\u673a\u5668\u5b66\u4e60<\/code> \u5230 <code>\u6df1\u5ea6\u5b66\u4e60<\/code> \u7684\u8fc7\u6e21\u3002<\/li>\n<\/ol>\n<p><strong>\u52a3\u52bf<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>\u68af\u5ea6\u6d88\u5931\u4e0e\u7206\u70b8<\/strong>\uff1a\u4f20\u7edf RNN \u5728\u5904\u7406\u957f\u5e8f\u5217\u65f6\uff0c\u5bb9\u6613\u51fa\u73b0\u68af\u5ea6\u6d88\u5931\u6216\u68af\u5ea6\u7206\u70b8\u7684\u95ee\u9898\uff0c\u5bfc\u81f4\u8bad\u7ec3\u56f0\u96be\u3002<\/li>\n<li><strong>\u8bad\u7ec3\u65f6\u95f4\u8f83\u957f<\/strong>\uff1a\u7531\u4e8e\u5e8f\u5217\u6570\u636e\u7684\u7279\u6027\uff0cRNN \u7684\u8bad\u7ec3\u65f6\u95f4\u901a\u5e38\u8f83\u957f\uff0c\u5c24\u5176\u662f\u5728\u957f\u5e8f\u5217\u4e0a\u3002<\/li>\n<li><strong>\u5e76\u884c\u5316\u56f0\u96be<\/strong>\uff1aRNN \u7684\u8ba1\u7b97\u4f9d\u8d56\u4e8e\u524d\u4e00\u4e2a\u65f6\u95f4\u6b65\u7684\u8f93\u51fa\uff0c\u5bfc\u81f4\u5176\u5728\u8bad\u7ec3\u548c\u63a8\u7406\u65f6\u96be\u4ee5\u8fdb\u884c\u5e76\u884c\u5316\uff0c\u6548\u7387\u8f83\u4f4e\uff0c\u65e0\u6cd5\u6709\u6548\u5229\u7528\u786c\u4ef6\u52a0\u901f\u3002<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"LSTM%E4%BC%98%E5%8A%BF%E4%B8%8E%E5%8A%A3%E5%8A%BF\"><\/span>LSTM\u4f18\u52bf\u4e0e\u52a3\u52bf<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u4f18\u52bf<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>\u89e3\u51b3\u68af\u5ea6\u6d88\u5931\u95ee\u9898<\/strong>\uff1a\u901a\u8fc7\u5f15\u5165\u9057\u5fd8\u95e8\u3001\u8f93\u5165\u95e8\u548c\u8f93\u51fa\u95e8\uff0c\u6709\u6548\u7f13\u89e3\u4e86\u68af\u5ea6\u6d88\u5931\u95ee\u9898\u3002<\/li>\n<li><strong>\u6355\u6349\u957f\u8ddd\u79bb\u4f9d\u8d56<\/strong>\uff1a\u80fd\u591f\u66f4\u597d\u5730\u6355\u6349\u957f\u8ddd\u79bb\u4f9d\u8d56\u5173\u7cfb\uff0c\u9002\u7528\u4e8e\u957f\u5e8f\u5217\u6570\u636e\u3002<\/li>\n<\/ol>\n<p><strong>\u52a3\u52bf<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>\u590d\u6742\u6027<\/strong>\uff1a\u7ed3\u6784\u8f83\u4e3a\u590d\u6742\uff0c\u53c2\u6570\u8f83\u591a\uff0c\u8bad\u7ec3\u548c\u8c03\u4f18\u7684\u96be\u5ea6\u589e\u52a0\u3002<\/li>\n<li><strong>\u8ba1\u7b97\u5f00\u9500<\/strong>\uff1a\u7531\u4e8e\u95e8\u63a7\u673a\u5236\u7684\u5f15\u5165\uff0c\u8ba1\u7b97\u6210\u672c\u8f83\u9ad8\uff0c\u8bad\u7ec3\u901f\u5ea6\u76f8\u5bf9\u8f83\u6162\u3002<\/li>\n<li><strong>\u8fc7\u62df\u5408\u98ce\u9669<\/strong>\uff1a\u53c2\u6570\u8f83\u591a\u53ef\u80fd\u5bfc\u81f4\u8fc7\u62df\u5408\uff0c\u5c24\u5176\u662f\u5728\u6570\u636e\u91cf\u4e0d\u8db3\u7684\u60c5\u51b5\u4e0b\u3002<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"GRU%E4%BC%98%E5%8A%BF%E4%B8%8E%E5%8A%A3%E5%8A%BF\"><\/span>GRU\u4f18\u52bf\u4e0e\u52a3\u52bf<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u4f18\u52bf<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>\u7b80\u5316\u7ed3\u6784<\/strong>\uff1a\u76f8\u8f83\u4e8e LSTM\uff0cGRU \u53ea\u6709\u4e24\u4e2a\u95e8\uff0c\u7ed3\u6784\u66f4\u7b80\u5355\uff0c\u53c2\u6570\u66f4\u5c11\u3002<\/li>\n<li><strong>\u9ad8\u6548\u8bad\u7ec3<\/strong>\uff1a\u7531\u4e8e\u53c2\u6570\u8f83\u5c11\uff0c\u8bad\u7ec3\u901f\u5ea6\u901a\u5e38\u66f4\u5feb\uff0c\u9002\u5408\u8d44\u6e90\u6709\u9650\u7684\u73af\u5883\u3002<\/li>\n<li><strong>\u826f\u597d\u6027\u80fd<\/strong>\uff1a\u5728\u8bb8\u591a\u4efb\u52a1\u4e2d\uff0cGRU \u7684\u8868\u73b0\u4e0e LSTM \u76f8\u5f53\uff0c\u6709\u65f6\u751a\u81f3\u66f4\u597d\u3002<\/li>\n<\/ol>\n<p><strong>\u52a3\u52bf<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>\u7075\u6d3b\u6027\u4e0d\u8db3<\/strong>\uff1a\u867d\u7136 GRU \u5728\u8bb8\u591a\u4efb\u52a1\u4e2d\u8868\u73b0\u826f\u597d\uff0c\u4f46\u5728\u67d0\u4e9b\u7279\u5b9a\u4efb\u52a1\u4e0a\uff0cLSTM \u53ef\u80fd\u4f1a\u8868\u73b0\u5f97\u66f4\u597d\u3002<\/li>\n<li><strong>\u53ef\u89e3\u91ca\u6027\u95ee\u9898<\/strong>\uff1a\u4e0e\u5176\u4ed6\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u4e00\u6837\uff0cGRU \u7684\u5185\u90e8\u673a\u5236\u8f83\u96be\u4ee5\u89e3\u91ca\uff0c\u53ef\u80fd\u5bfc\u81f4\u6a21\u578b\u7684\u53ef\u89e3\u91ca\u6027\u95ee\u9898\u3002<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"%E5%86%85%E5%AE%B9%E5%B0%8F%E7%BB%93\"><\/span>\u5185\u5bb9\u5c0f\u7ed3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>LSTM \u548c GRU \u90fd\u662f RNN \u7684\u53d8\u79cd\uff0c\u5b83\u4eec\u90fd\u65e8\u5728\u89e3\u51b3\u4f20\u7edf RNN \u5728\u5904\u7406\u957f\u5e8f\u5217\u65f6\u9047\u5230\u7684\u68af\u5ea6\u6d88\u5931\u95ee\u9898\u3002<\/li>\n<li>LSTM \u901a\u8fc7\u5f15\u5165\u9057\u5fd8\u95e8\uff08Forget Gate\uff09\u548c\u8f93\u5165\u95e8\uff08Input Gate\uff09\u6765\u63a7\u5236\u77ed\u671f\u8bb0\u5fc6\u548c\u957f\u671f\u8bb0\u5fc6\uff0c\u80fd\u591f\u6709\u6548\u5730\u6355\u6349\u957f\u671f\u4f9d\u8d56\u5173\u7cfb\u3002<\/li>\n<li>GRU \u901a\u8fc7\u5f15\u5165\u66f4\u65b0\u95e8\uff08Update Gate\uff09\u548c\u91cd\u7f6e\u95e8\uff08Reset Gate\uff09\u6765\u63a7\u5236\u77ed\u671f\u8bb0\u5fc6\u548c\u957f\u671f\u8bb0\u5fc6\uff0c\u80fd\u591f\u6709\u6548\u5730\u6355\u6349\u957f\u671f\u4f9d\u8d56\u5173\u7cfb\u3002<\/li>\n<li>LSTM \u548c GRU \u7684API\u4f7f\u7528\u65b9\u5f0f\u90fd\u8f83\u4e3a\u76f8\u4f3c\uff0c\u90fd\u662f\u901a\u8fc7\u8c03\u7528 <code>nn.LSTM()<\/code> \u6216 <code>nn.GRU()<\/code> \u51fd\u6570\u521b\u5efa\u6a21\u578b\uff0c\u4ed6\u4eec\u4e0eRNN\u7c7b\u4f3c\u90fd\u6709\u81ea\u52a8\u5faa\u73af\u548c\u624b\u5199\u5faa\u73af\u4e24\u79cd\u65b9\u5f0f\u3002<\/li>\n<li>RNN\u7684\u4f18\u52bf\u662f\u7b80\u5355\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u5b9e\u73b0\uff1b\u52a3\u52bf\u662f\u68af\u5ea6\u6d88\u5931\u548c\u8bad\u7ec3\u65f6\u95f4\u8f83\u957f\u3002<\/li>\n<li>LSTM\u7684\u4f18\u52bf\u662f\u80fd\u591f\u6355\u6349\u957f\u8ddd\u79bb\u4f9d\u8d56\u5173\u7cfb\uff0c\u7f3a\u70b9\u662f\u53c2\u6570\u8f83\u591a\uff0c\u8bad\u7ec3\u548c\u8c03\u4f18\u7684\u96be\u5ea6\u589e\u52a0\u3002<\/li>\n<li>GRU\u7684\u4f18\u52bf\u662f\u7b80\u5316\u7ed3\u6784\uff0c\u7f3a\u70b9\u662f\u53c2\u6570\u8f83\u591a\uff0c\u8bad\u7ec3\u548c\u8c03\u4f18\u7684\u96be\u5ea6\u589e\u52a0\u3002<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"%E5%8F%82%E8%80%83%E8%B5%84%E6%96%99\"><\/span>\u53c2\u8003\u8d44\u6599<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a 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[&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8900,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"aside","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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