{"id":3395,"date":"2026-01-27T22:32:40","date_gmt":"2026-01-27T22:32:40","guid":{"rendered":"https:\/\/umaax.com\/shenmeshichangduanqijiyiwangluolstmaibaikezhishi\/"},"modified":"2026-01-27T22:32:40","modified_gmt":"2026-01-27T22:32:40","slug":"shenmeshichangduanqijiyiwangluolstmaibaikezhishi","status":"publish","type":"post","link":"https:\/\/umaax.com\/en\/shenmeshichangduanqijiyiwangluolstmaibaikezhishi\/","title":{"rendered":"\u4ec0\u4e48\u662f\u957f\u77ed\u671f\u8bb0\u5fc6\u7f51\u7edc\uff08LSTM\uff09 \u2013 AI\u767e\u79d1\u77e5\u8bc6"},"content":{"rendered":"<p>\u5728\u4eba\u5de5\u667a\u80fd\u548c\u673a\u5668\u5b66\u4e60\u9886\u57df\uff0c\u957f\u77ed\u671f\u8bb0\u5fc6\u7f51\u7edc\uff08LSTM\uff09\u5df2\u7ecf\u6210\u4e3a\u89e3\u51b3\u5e8f\u5217\u9884\u6d4b\u95ee\u9898\u7684\u5f3a\u5927\u5de5\u5177\u3002LSTM\u662f\u4e00\u79cd\u7279\u6b8a\u7c7b\u578b\u7684\u5faa\u73af\u795e\u7ecf\u7f51\u7edc\uff08RNN\uff09\uff0c\u5b83\u80fd\u591f\u5b66\u4e60\u6570\u636e\u4e2d\u7684\u957f\u671f\u4f9d\u8d56\u5173\u7cfb\uff0c\u8fd9\u4f7f\u5f97\u5b83\u5728\u8bf8\u5982\u8bed\u8a00\u7ffb\u8bd1\u3001\u8bed\u97f3\u8bc6\u522b\u548c\u65f6\u95f4\u5e8f\u5217\u9884\u6d4b\u7b49\u4efb\u52a1\u4e2d\u8868\u73b0\u51fa\u8272\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdLSTM\u7684\u57fa\u672c\u6982\u5ff5\u3001\u7ed3\u6784\u3001\u4e0e\u4f20\u7edfRNN\u7684\u5bf9\u6bd4\u3001\u4f18\u7f3a\u70b9\u4ee5\u53ca\u5e7f\u6cdb\u5e94\u7528\u7684\u9886\u57df\u3002<\/p>\n<p> <img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-19539\" src=\"https:\/\/ai-bot.cn\/wp-content\/uploads\/2024\/09\/AI\u767e\u79d1\u6a21\u677f211-2.jpg\"  alt=\"\u957f\u77ed\u671f\u8bb0\u5fc6\u7f51\u7edc\" width=\"800\" height=\"450\" \/> <\/p>\n<h2>\u4ec0\u4e48\u662fLSTM<\/h2>\n<p>LSTM\uff0c\u5168\u79f0\u4e3aLong Short-Term Memory\uff0c\u4e2d\u6587\u4e3a\u201c\u957f\u77ed\u671f\u8bb0\u5fc6\u7f51\u7edc\u201d\uff0c\u7531Sepp Hochreiter\u548cJ\u00fcrgen Schmidhuber\u57281997\u5e74\u63d0\u51fa\uff0c\u662f\u4e00\u79cd\u80fd\u591f\u8bb0\u4f4f\u957f\u671f\u4fe1\u606f\u5e76\u7528\u4e8e\u672a\u6765\u8ba1\u7b97\u7684\u6df1\u5ea6\u5b66\u4e60\u7b97\u6cd5\u3002LSTM\u7684\u8bbe\u8ba1\u521d\u8877\u662f\u4e3a\u4e86\u89e3\u51b3\u4f20\u7edf\u5faa\u73af\u795e\u7ecf\u7f51\u7edcRNN\u5728\u5904\u7406\u957f\u5e8f\u5217\u6570\u636e\u65f6\u9047\u5230\u7684\u68af\u5ea6\u6d88\u5931\u95ee\u9898\u3002LSTM\u901a\u8fc7\u5f15\u5165\u7279\u6b8a\u7684\u7ed3\u6784\u2014\u8bb0\u5fc6\u5355\u5143\u4ee5\u53ca\u63a7\u5236\u4fe1\u606f\u6d41\u7684\u95e8\u63a7\u673a\u5236\uff0c\u4f7f\u5176\u80fd\u591f\u5b66\u4e60\u5e76\u8bb0\u4f4f\u957f\u671f\u7684\u4fe1\u606f\uff0c\u540c\u65f6\u5ffd\u7565\u4e0d\u91cd\u8981\u7684\u4fe1\u606f\u3002<\/p>\n<h2>LSTM\u7684\u7ed3\u6784<\/h2>\n<p>LSTM\u7f51\u7edc\u7684\u6838\u5fc3\u662f\u5176\u72ec\u7279\u7684\u8bb0\u5fc6\u5355\u5143\u548c\u95e8\u63a7\u673a\u5236\u3002\u6bcf\u4e2aLSTM\u5355\u5143\u5305\u542b\u4e09\u4e2a\u4e3b\u8981\u7684\u95e8\uff1a\u8f93\u5165\u95e8\uff08Input Gate\uff09\u3001\u9057\u5fd8\u95e8\uff08Forget Gate\uff09\u548c\u8f93\u51fa\u95e8\uff08Output Gate\uff09\u3002<\/p>\n<ul>\n<li><strong>\u8bb0\u5fc6\u5355\u5143\uff08Memory Cell\uff09<\/strong>\uff1aLSTM\u4e2d\u7684\u6bcf\u4e2a\u5355\u5143\u90fd\u5305\u542b\u4e00\u4e2a\u8bb0\u5fc6\u5355\u5143\uff0c\u5b83\u662f\u4fe1\u606f\u5728\u7f51\u7edc\u4e2d\u6d41\u52a8\u7684\u8f7d\u4f53\u3002\u8bb0\u5fc6\u5355\u5143\u53ef\u4ee5\u5b58\u50a8\u4fe1\u606f\uff0c\u5e76\u5728\u6574\u4e2a\u5e8f\u5217\u5904\u7406\u8fc7\u7a0b\u4e2d\u4fdd\u6301\u8fd9\u4e9b\u4fe1\u606f\u3002\u8bb0\u5fc6\u5355\u5143\u7684\u72b6\u6001\u88ab\u79f0\u4e3a\u7ec6\u80de\u72b6\u6001\uff08cell state\uff09\uff0c\u5b83\u901a\u8fc7\u4e00\u7cfb\u5217\u590d\u6742\u7684\u64cd\u4f5c\u8fdb\u884c\u66f4\u65b0\u3002<\/li>\n<li><strong>\u9057\u5fd8\u95e8\uff08Forget Gate\uff09<\/strong>\uff1a\u9057\u5fd8\u95e8\u662fLSTM\u5355\u5143\u7684\u7b2c\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u5b83\u7684\u4e3b\u8981\u4efb\u52a1\u662f\u51b3\u5b9a\u54ea\u4e9b\u4fe1\u606f\u5e94\u8be5\u4ece\u7ec6\u80de\u72b6\u6001\u4e2d\u88ab\u9057\u5fd8\u6216\u4fdd\u7559\u3002\u9057\u5fd8\u95e8\u63a5\u6536\u524d\u4e00\u4e2a\u65f6\u95f4\u6b65\u7684\u9690\u85cf\u72b6\u6001\u548c\u5f53\u524d\u65f6\u95f4\u6b65\u7684\u8f93\u5165\uff0c\u5e76\u901a\u8fc7\u4e00\u4e2asigmoid\u51fd\u6570\u751f\u6210\u4e00\u4e2a0\u52301\u4e4b\u95f4\u7684\u503c\uff0c\u8868\u793a\u9057\u5fd8\u7684\u7a0b\u5ea6\u3002\u5982\u679c\u9057\u5fd8\u95e8\u7684\u8f93\u51fa\u63a5\u8fd10\uff0c\u5219\u8868\u793a\u4fdd\u7559\u4fe1\u606f\uff1b\u5982\u679c\u63a5\u8fd11\uff0c\u5219\u8868\u793a\u9057\u5fd8\u4fe1\u606f\u3002<\/li>\n<li><strong>\u8f93\u5165\u95e8\uff08Input Gate\uff09<\/strong>\uff1a\u8f93\u5165\u95e8\u7531\u4e24\u90e8\u5206\u7ec4\u6210\uff1a\u4e00\u4e2asigmoid\u5c42\u548c\u4e00\u4e2atanh\u5c42\u3002sigmoid\u5c42\u8d1f\u8d23\u51b3\u5b9a\u54ea\u4e9b\u503c\u5c06\u88ab\u66f4\u65b0\uff0c\u5176\u8f93\u51fa\u4e5f\u57280\u52301\u4e4b\u95f4\u3002tanh\u5c42\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5019\u9009\u5411\u91cf\uff0c\u8fd9\u4e2a\u5411\u91cf\u5305\u542b\u53ef\u80fd\u88ab\u52a0\u5165\u5230\u7ec6\u80de\u72b6\u6001\u4e2d\u7684\u65b0\u4fe1\u606f\u3002\u7136\u540e\uff0c\u8f93\u5165\u95e8\u5c06sigmoid\u5c42\u7684\u8f93\u51fa\u4e0etanh\u5c42\u7684\u8f93\u51fa\u76f8\u4e58\uff0c\u4ee5\u786e\u5b9a\u6700\u7ec8\u66f4\u65b0\u5230\u7ec6\u80de\u72b6\u6001\u4e2d\u7684\u4fe1\u606f\u3002<\/li>\n<li><strong>\u8f93\u51fa\u95e8\uff08Output Gate\uff09<\/strong>\uff1a\u8f93\u51fa\u95e8\u8d1f\u8d23\u51b3\u5b9a\u4e0b\u4e00\u4e2a\u9690\u85cf\u72b6\u6001\u7684\u503c\uff0c\u5b83\u57fa\u4e8e\u7ec6\u80de\u72b6\u6001\u548c\u524d\u4e00\u4e2a\u9690\u85cf\u72b6\u6001\u8fdb\u884c\u8ba1\u7b97\u3002\u9996\u5148\uff0c\u8f93\u51fa\u95e8\u4f7f\u7528sigmoid\u51fd\u6570\u6765\u786e\u5b9a\u7ec6\u80de\u72b6\u6001\u4e2d\u54ea\u4e9b\u4fe1\u606f\u662f\u91cd\u8981\u7684\uff0c\u5e76\u5c06\u8fd9\u4e9b\u4fe1\u606f\u7684\u52a0\u6743\u548c\u4f5c\u4e3a\u9690\u85cf\u72b6\u6001\u7684\u4e00\u90e8\u5206\u3002\u7136\u540e\uff0c\u8f93\u51fa\u95e8\u4f7f\u7528tanh\u51fd\u6570\u5904\u7406\u7ec6\u80de\u72b6\u6001\uff0c\u751f\u6210\u4e00\u4e2a\u8f93\u51fa\u5411\u91cf\uff0c\u8fd9\u4e2a\u5411\u91cf\u4e0esigmoid\u51fd\u6570\u7684\u8f93\u51fa\u76f8\u4e58\uff0c\u5f97\u5230\u6700\u7ec8\u7684\u9690\u85cf\u72b6\u6001\u3002<\/li>\n<\/ul>\n<h3>\u95e8\u63a7\u673a\u5236\u7684\u6570\u5b66\u8868\u8fbe<\/h3>\n<p>\u6bcf\u4e2a\u95e8\u7684\u64cd\u4f5c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6570\u5b66\u516c\u5f0f\u63cf\u8ff0\uff1a<\/p>\n<ul>\n<li><strong>\u9057\u5fd8\u95e8<\/strong>\uff1a<span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc53\ud835\udc61=\ud835\udf0e(\ud835\udc4a\ud835\udc53\u22c5[\u210e\ud835\udc61\u22121,\ud835\udc65\ud835\udc61]+\ud835\udc4f\ud835\udc53)<\/span><\/span><\/span><br \/> \u5176\u4e2d <span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udf0e<\/span><\/span><\/span>\u662fsigmoid\u51fd\u6570\uff0c<span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc4a\ud835\udc53<\/span><\/span><\/span>\u662f\u9057\u5fd8\u95e8\u7684\u6743\u91cd\u77e9\u9635\uff0c<span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">[\u210e\ud835\udc61\u22121,\ud835\udc65\ud835\udc61]<\/span><\/span><\/span>\u662f\u524d\u4e00\u4e2a\u9690\u85cf\u72b6\u6001\u548c\u5f53\u524d\u8f93\u5165\u7684\u5408\u5e76\uff0c<span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc4f\ud835\udc53<\/span><\/span><\/span>\u662f\u504f\u7f6e\u9879\u3002<\/li>\n<li><strong>\u8f93\u5165\u95e8<\/strong>\uff1a<span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc56\ud835\udc61=\ud835\udf0e(\ud835\udc4a\ud835\udc56\u22c5[\u210e\ud835\udc61\u22121,\ud835\udc65\ud835\udc61]+\ud835\udc4f\ud835\udc56)<\/span><\/span><\/span><br \/> <span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc36~\ud835\udc61=tanh\u2061(\ud835\udc4a\ud835\udc36\u22c5[\u210e\ud835\udc61\u22121,\ud835\udc65\ud835\udc61]+\ud835\udc4f\ud835\udc36)<\/span><\/span><\/span><br \/> \u5176\u4e2d <span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc56\ud835\udc61<\/span><\/span><\/span>\u662f\u8f93\u5165\u95e8\u7684\u8f93\u51fa\uff0c<span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc36~\ud835\udc61<\/span><\/span><\/span>\u662f\u5019\u9009\u7ec6\u80de\u72b6\u6001\uff0c<span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc4a\ud835\udc56 <\/span><\/span><\/span>\u548c <span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc4a\ud835\udc36 <\/span><\/span><\/span>\u662f\u6743\u91cd\u77e9\u9635\uff0c<span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc4f\ud835\udc56 <\/span><\/span><\/span>\u548c <span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc4f\ud835\udc36 <\/span><\/span><\/span>\u662f\u504f\u7f6e\u9879\u3002<\/li>\n<li><strong>\u66f4\u65b0\u7ec6\u80de\u72b6\u6001<\/strong>\uff1a<span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc36\ud835\udc61=\ud835\udc53\ud835\udc61\u2217\ud835\udc36\ud835\udc61\u22121+\ud835\udc56\ud835\udc61\u2217\ud835\udc36~\ud835\udc61 <\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><br \/> \u8fd9\u91cc <span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc36\ud835\udc61 <\/span><\/span><\/span>\u662f\u5f53\u524d\u65f6\u95f4\u6b65\u7684\u7ec6\u80de\u72b6\u6001\u3002<\/li>\n<li><strong>\u8f93\u51fa\u95e8<\/strong>\uff1a<span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc5c\ud835\udc61=\ud835\udf0e(\ud835\udc4a\ud835\udc5c\u22c5[\u210e\ud835\udc61\u22121,\ud835\udc65\ud835\udc61]+\ud835\udc4f\ud835\udc5c)<\/span><\/span><\/span><br \/> <span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\u210e\ud835\udc61=\ud835\udc5c\ud835\udc61\u2217tanh\u2061(\ud835\udc36\ud835\udc61)<\/span><\/span><\/span><br \/> \u5176\u4e2d <span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\ud835\udc5c\ud835\udc61 <\/span><\/span><\/span>\u662f\u8f93\u51fa\u95e8\u7684\u8f93\u51fa\uff0c<span class=\"math math-inline\"><span class=\"katex\"><span class=\"katex-mathml\">\u210e\ud835\udc61 <\/span><\/span><\/span>\u662f\u5f53\u524d\u65f6\u95f4\u6b65\u7684\u9690\u85cf\u72b6\u6001\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u95e8\u901a\u8fc7sigmoid\u51fd\u6570\u548ctanh\u51fd\u6570\u8fdb\u884c\u64cd\u4f5c\uff0c\u4ea7\u751f\u57280\u52301\u4e4b\u95f4\u6216-1\u52301\u4e4b\u95f4\u7684\u503c\uff0c\u4ece\u800c\u63a7\u5236\u4fe1\u606f\u7684\u6d41\u52a8\u3002<\/p>\n<h2>LSTM\u5bf9\u6bd4RNN<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u7279\u5f81\/\u7f51\u7edc\u7c7b\u578b<\/th>\n<th>\u957f\u77ed\u671f\u8bb0\u5fc6\u7f51\u7edc\uff08LSTM\uff09<\/th>\n<th>\u5faa\u73af\u795e\u7ecf\u7f51\u7edc\uff08RNN\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u57fa\u672c\u7ed3\u6784<\/strong><\/td>\n<td>\u5305\u542b\u8f93\u5165\u95e8\u3001\u9057\u5fd8\u95e8\u548c\u8f93\u51fa\u95e8\u7684\u8bb0\u5fc6\u5355\u5143<\/td>\n<td>\u7b80\u5355\u7684\u5faa\u73af\u5355\u5143\uff0c\u901a\u5e38\u53ea\u6709\u4e00\u4e2a\u9690\u85cf\u5c42<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8bb0\u5fc6\u80fd\u529b<\/strong><\/td>\n<td>\u80fd\u591f\u5b66\u4e60\u957f\u671f\u4f9d\u8d56\u5173\u7cfb<\/td>\n<td>\u96be\u4ee5\u6355\u6349\u957f\u671f\u4f9d\u8d56\uff0c\u5bb9\u6613\u51fa\u73b0\u68af\u5ea6\u6d88\u5931\u95ee\u9898<\/td>\n<\/tr>\n<tr>\n<td><strong>\u68af\u5ea6\u5904\u7406<\/strong><\/td>\n<td>\u901a\u8fc7\u95e8\u63a7\u673a\u5236\u907f\u514d\u68af\u5ea6\u6d88\u5931\u6216\u7206\u70b8<\/td>\n<td>\u957f\u5e8f\u5217\u8bad\u7ec3\u65f6\u6613\u51fa\u73b0\u68af\u5ea6\u6d88\u5931\uff0c\u96be\u4ee5\u5b66\u4e60\u957f\u671f\u4f9d\u8d56<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8bad\u7ec3\u96be\u5ea6<\/strong><\/td>\n<td>\u8bad\u7ec3\u76f8\u5bf9\u590d\u6742\uff0c\u9700\u8981\u66f4\u591a\u8c03\u53c2<\/td>\n<td>\u8bad\u7ec3\u76f8\u5bf9\u7b80\u5355\uff0c\u53c2\u6570\u8f83\u5c11<\/td>\n<\/tr>\n<tr>\n<td><strong>\u9002\u7528\u4efb\u52a1<\/strong><\/td>\n<td>\u9002\u5408\u5904\u7406\u957f\u5e8f\u5217\u6570\u636e\u7684\u4efb\u52a1\uff0c\u5982\u8bed\u8a00\u7ffb\u8bd1\u3001\u6587\u672c\u6458\u8981<\/td>\n<td>\u9002\u5408\u5904\u7406\u77ed\u5e8f\u5217\u6216\u7b80\u5355\u5e8f\u5217\u6a21\u5f0f\u7684\u4efb\u52a1\uff0c\u5982\u7b80\u5355\u65f6\u95f4\u5e8f\u5217\u9884\u6d4b<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6027\u80fd<\/strong><\/td>\n<td>\u5728\u957f\u5e8f\u5217\u4e0a\u8868\u73b0\u66f4\u597d\uff0c\u80fd\u591f\u6355\u6349\u66f4\u8fdc\u65f6\u95f4\u6b65\u7684\u4fe1\u606f<\/td>\n<td>\u5728\u77ed\u5e8f\u5217\u6216\u65f6\u95f4\u6b65\u4e4b\u95f4\u4f9d\u8d56\u4e0d\u5f3a\u7684\u4efb\u52a1\u4e0a\u8868\u73b0\u826f\u597d<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8ba1\u7b97\u8d44\u6e90<\/strong><\/td>\n<td>\u8ba1\u7b97\u6210\u672c\u8f83\u9ad8\uff0c\u9700\u8981\u66f4\u591a\u8ba1\u7b97\u8d44\u6e90<\/td>\n<td>\u8ba1\u7b97\u6210\u672c\u8f83\u4f4e\uff0c\u9002\u5408\u8d44\u6e90\u53d7\u9650\u7684\u73af\u5883<\/td>\n<\/tr>\n<tr>\n<td><strong>\u7075\u6d3b\u6027<\/strong><\/td>\n<td>\u9ad8\u5ea6\u7075\u6d3b\uff0c\u53ef\u4ee5\u8bbe\u8ba1\u590d\u6742\u7684\u7f51\u7edc\u7ed3\u6784<\/td>\n<td>\u7075\u6d3b\u6027\u8f83\u4f4e\uff0c\u7ed3\u6784\u76f8\u5bf9\u7b80\u5355<\/td>\n<\/tr>\n<tr>\n<td><strong>\u95e8\u63a7\u673a\u5236<\/strong><\/td>\n<td>\u5177\u6709\u590d\u6742\u7684\u95e8\u63a7\u673a\u5236\u63a7\u5236\u4fe1\u606f\u6d41<\/td>\n<td>\u6ca1\u6709\u95e8\u63a7\u673a\u5236\uff0c\u4fe1\u606f\u81ea\u7531\u6d41\u52a8<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8f93\u51fa<\/strong><\/td>\n<td>\u8f93\u51fa\u53d6\u51b3\u4e8e\u5f53\u524d\u7ec6\u80de\u72b6\u6001\u548c\u8f93\u5165\u95e8\u7684\u63a7\u5236<\/td>\n<td>\u8f93\u51fa\u4f9d\u8d56\u4e8e\u4e0a\u4e00\u4e2a\u65f6\u95f4\u6b65\u7684\u9690\u85cf\u72b6\u6001\u548c\u5f53\u524d\u8f93\u5165<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>LSTM\u7684\u4f18\u7f3a\u70b9<\/h2>\n<h3>LSTM\u7684\u4f18\u70b9\uff1a<\/h3>\n<ul>\n<li><strong>\u957f\u671f\u4f9d\u8d56\u6355\u6349<\/strong>\uff1aLSTM\u7684\u8bbe\u8ba1\u7406\u5ff5\u4e4b\u4e00\u662f\u89e3\u51b3\u4f20\u7edfRNN\u5728\u5904\u7406\u957f\u5e8f\u5217\u6570\u636e\u65f6\u9047\u5230\u7684\u68af\u5ea6\u6d88\u5931\u95ee\u9898\u3002LSTM\u901a\u8fc7\u5176\u72ec\u7279\u7684\u95e8\u63a7\u673a\u5236\uff0c\u7279\u522b\u662f\u9057\u5fd8\u95e8\u548c\u8f93\u5165\u95e8\uff0c\u80fd\u591f\u6709\u6548\u5730\u6355\u6349\u548c\u8bb0\u5fc6\u957f\u671f\u4f9d\u8d56\u5173\u7cfb\u3002\u8fd9\u610f\u5473\u7740LSTM\u53ef\u4ee5\u5728\u5e8f\u5217\u4e2d\u4fdd\u6301\u5bf9\u65e9\u671f\u4e8b\u4ef6\u7684\u8bb0\u5fc6\uff0c\u8fd9\u5bf9\u4e8e\u8bed\u8a00\u6a21\u578b\u3001\u673a\u5668\u7ffb\u8bd1\u7b49\u4efb\u52a1\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u4efb\u52a1\u9700\u8981\u7406\u89e3\u53e5\u5b50\u4e2d\u7684\u957f\u8ddd\u79bb\u4f9d\u8d56\u5173\u7cfb\u3002<\/li>\n<li><strong>\u907f\u514d\u68af\u5ea6\u6d88\u5931<\/strong>\uff1a\u5728\u6df1\u5ea6\u5b66\u4e60\u4e2d\uff0c\u68af\u5ea6\u6d88\u5931\u662f\u4e00\u4e2a\u5e38\u89c1\u95ee\u9898\uff0c\u5b83\u4f1a\u5bfc\u81f4\u6df1\u5c42\u7f51\u7edc\u96be\u4ee5\u8bad\u7ec3\u3002LSTM\u901a\u8fc7\u5176\u5185\u90e8\u7684\u95e8\u63a7\u5355\u5143\uff0c\u7279\u522b\u662f\u201d\u5e38\u6570\u8bef\u5dee\u6d41\u52a8\u201d\uff08constant error carousels\uff09\u7684\u8bbe\u8ba1\uff0c\u5141\u8bb8\u7f51\u7edc\u5728\u53cd\u5411\u4f20\u64ad\u8fc7\u7a0b\u4e2d\u4fdd\u6301\u68af\u5ea6\u7684\u6d41\u52a8\uff0c\u4ece\u800c\u907f\u514d\u4e86\u68af\u5ea6\u6d88\u5931\u95ee\u9898\u3002\u8fd9\u4f7f\u5f97LSTM\u80fd\u591f\u5b66\u4e60\u590d\u6742\u7684\u5e8f\u5217\u6a21\u5f0f\uff0c\u5373\u4f7f\u8fd9\u4e9b\u6a21\u5f0f\u8de8\u8d8a\u4e86\u5f88\u591a\u65f6\u95f4\u6b65\u3002<\/li>\n<li><strong>\u7075\u6d3b\u6027<\/strong>\uff1aLSTM\u7684\u95e8\u63a7\u673a\u5236\u4e0d\u4ec5\u5305\u62ec\u9057\u5fd8\u95e8\u548c\u8f93\u5165\u95e8\uff0c\u8fd8\u6709\u8f93\u51fa\u95e8\uff0c\u8fd9\u4e9b\u95e8\u5171\u540c\u5de5\u4f5c\uff0c\u4f7f\u5f97LSTM\u5728\u5904\u7406\u5404\u79cd\u5e8f\u5217\u6570\u636e\u65f6\u5177\u6709\u5f88\u9ad8\u7684\u7075\u6d3b\u6027\u3002\u9057\u5fd8\u95e8\u5141\u8bb8\u7f51\u7edc\u5fd8\u8bb0\u4e0d\u76f8\u5173\u7684\u4fe1\u606f\uff0c\u8f93\u5165\u95e8\u5141\u8bb8\u7f51\u7edc\u66f4\u65b0\u91cd\u8981\u7684\u4fe1\u606f\uff0c\u800c\u8f93\u51fa\u95e8\u5219\u63a7\u5236\u7740\u7f51\u7edc\u7684\u6700\u7ec8\u8f93\u51fa\u3002\u8fd9\u79cd\u7075\u6d3b\u6027\u4f7f\u5f97LSTM\u80fd\u591f\u9002\u5e94\u4e0d\u540c\u7684\u4efb\u52a1\u9700\u6c42\uff0c\u5982\u6587\u672c\u751f\u6210\u3001\u8bed\u97f3\u8bc6\u522b\u7b49\u3002<\/li>\n<\/ul>\n<h3>LSTM\u7684\u7f3a\u70b9\uff1a<\/h3>\n<ul>\n<li><strong>\u8ba1\u7b97\u590d\u6742\u6027<\/strong>\uff1aLSTM\u7684\u5185\u90e8\u7ed3\u6784\u6bd4\u4f20\u7edfRNN\u590d\u6742\u5f97\u591a\uff0c\u6bcf\u4e2aLSTM\u5355\u5143\u5305\u542b\u591a\u4e2a\u95e8\u548c\u975e\u7ebf\u6027\u6fc0\u6d3b\u51fd\u6570\u3002\u8fd9\u79cd\u590d\u6742\u6027\u5bfc\u81f4\u4e86\u66f4\u9ad8\u7684\u8ba1\u7b97\u6210\u672c\uff0c\u5c24\u5176\u662f\u5728\u8bad\u7ec3\u5927\u578b\u7f51\u7edc\u65f6\u3002LSTM\u9700\u8981\u66f4\u591a\u7684\u53c2\u6570\u548c\u8ba1\u7b97\u8d44\u6e90\uff0c\u8fd9\u53ef\u80fd\u4f1a\u9650\u5236\u5176\u5728\u8d44\u6e90\u53d7\u9650\u7684\u73af\u5883\u4e2d\u7684\u5e94\u7528\u3002<\/li>\n<li><strong>\u8bad\u7ec3\u65f6\u95f4<\/strong>\uff1a\u7531\u4e8eLSTM\u7684\u7ed3\u6784\u590d\u6742\uff0c\u8bad\u7ec3LSTM\u6a21\u578b\u901a\u5e38\u9700\u8981\u66f4\u957f\u7684\u65f6\u95f4\u3002\u6bcf\u4e2a\u65f6\u95f4\u6b65\u7684\u8ba1\u7b97\u90fd\u6d89\u53ca\u5230\u591a\u4e2a\u95e8\u7684\u6fc0\u6d3b\u548c\u66f4\u65b0\uff0c\u8fd9\u589e\u52a0\u4e86\u8bad\u7ec3\u8fc7\u7a0b\u7684\u590d\u6742\u5ea6\u3002\u6b64\u5916\uff0c\u4e3a\u4e86\u8fbe\u5230\u7406\u60f3\u7684\u6027\u80fd\uff0cLSTM\u53ef\u80fd\u9700\u8981\u66f4\u591a\u7684\u8bad\u7ec3\u6570\u636e\u548c\u66f4\u591a\u7684\u8fed\u4ee3\u6b21\u6570\u3002<\/li>\n<li><strong>\u8fc7\u62df\u5408\u98ce\u9669<\/strong>\uff1aLSTM\u7531\u4e8e\u5176\u5f3a\u5927\u7684\u8bb0\u5fc6\u80fd\u529b\u548c\u590d\u6742\u7684\u7ed3\u6784\uff0c\u6709\u80fd\u529b\u6355\u6349\u5230\u6570\u636e\u4e2d\u7684\u7ec6\u5fae\u6a21\u5f0f\u3002\u7136\u800c\uff0c\u8fd9\u4e5f\u5e26\u6765\u4e86\u8fc7\u62df\u5408\u7684\u98ce\u9669\uff0c\u7279\u522b\u662f\u5728\u6570\u636e\u91cf\u6709\u9650\u7684\u60c5\u51b5\u4e0b\u3002\u8fc7\u62df\u5408\u610f\u5473\u7740\u6a21\u578b\u53ef\u80fd\u4f1a\u5b66\u4e60\u5230\u6570\u636e\u4e2d\u7684\u566a\u97f3\uff0c\u800c\u4e0d\u662f\u6f5c\u5728\u7684\u6570\u636e\u5206\u5e03\uff0c\u8fd9\u4f1a\u964d\u4f4e\u6a21\u578b\u5728\u672a\u89c1\u6570\u636e\u4e0a\u7684\u6cdb\u5316\u80fd\u529b\u3002\u4e3a\u4e86\u907f\u514d\u8fc7\u62df\u5408\uff0c\u53ef\u80fd\u9700\u8981\u91c7\u7528\u6b63\u5219\u5316\u6280\u672f\u3001\u66f4\u590d\u6742\u7684\u6a21\u578b\u67b6\u6784\u6216\u96c6\u6210\u5b66\u4e60\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<h2>LSTM\u7684\u5e94\u7528<\/h2>\n<h3>\u81ea\u7136\u8bed\u8a00\u5904\u7406\uff08NLP\uff09<\/h3>\n<p>\u5728\u81ea\u7136\u8bed\u8a00\u5904\u7406\u9886\u57df\uff0cLSTM\u5df2\u7ecf\u6210\u4e3a\u8bb8\u591a\u5e94\u7528\u7684\u6838\u5fc3\u6280\u672f\u3002\u7531\u4e8e\u5176\u80fd\u591f\u6355\u6349\u957f\u8ddd\u79bb\u4f9d\u8d56\u5173\u7cfb\uff0cLSTM\u7279\u522b\u9002\u5408\u4e8e\u4ee5\u4e0b\u4efb\u52a1\uff1a<\/p>\n<ul>\n<li><strong>\u673a\u5668\u7ffb\u8bd1<\/strong>\uff1aLSTM\u80fd\u591f\u5b66\u4e60\u4e0d\u540c\u8bed\u8a00\u4e4b\u95f4\u7684\u590d\u6742\u6620\u5c04\u5173\u7cfb\uff0c\u5b9e\u73b0\u9ad8\u8d28\u91cf\u7684\u81ea\u52a8\u7ffb\u8bd1\u3002<\/li>\n<li><strong>\u8bed\u8a00\u6a21\u578b\u6784\u5efa<\/strong>\uff1aLSTM\u53ef\u4ee5\u7528\u4e8e\u6784\u5efa\u8bed\u8a00\u6a21\u578b\uff0c\u8fd9\u4e9b\u6a21\u578b\u80fd\u591f\u9884\u6d4b\u6587\u672c\u5e8f\u5217\u4e2d\u4e0b\u4e00\u4e2a\u8bcd\u7684\u6982\u7387\uff0c\u4ece\u800c\u6539\u5584\u6587\u672c\u751f\u6210\u548c\u7406\u89e3\u3002<\/li>\n<li><strong>\u6587\u672c\u6458\u8981<\/strong>\uff1aLSTM\u80fd\u591f\u8bc6\u522b\u6587\u672c\u4e2d\u7684\u5173\u952e\u4fe1\u606f\uff0c\u5e76\u751f\u6210\u5185\u5bb9\u7684\u7b80\u77ed\u6458\u8981\uff0c\u8fd9\u5bf9\u4e8e\u4fe1\u606f\u68c0\u7d22\u548c\u5185\u5bb9\u6982\u8ff0\u975e\u5e38\u6709\u7528\u3002<\/li>\n<\/ul>\n<h3>\u8bed\u97f3\u8bc6\u522b<\/h3>\n<p>LSTM\u5728\u8bed\u97f3\u8bc6\u522b\u7cfb\u7edf\u4e2d\u626e\u6f14\u7740\u91cd\u8981\u89d2\u8272\uff0c\u5b83\u53ef\u4ee5\u6709\u6548\u5730\u5904\u7406\u65f6\u95f4\u5e8f\u5217\u7684\u97f3\u9891\u6570\u636e\uff1a<\/p>\n<ul>\n<li><strong>\u8bed\u97f3\u5230\u6587\u672c\u8f6c\u6362<\/strong>\uff1aLSTM\u80fd\u591f\u5c06\u8fde\u7eed\u7684\u8bed\u97f3\u4fe1\u53f7\u8f6c\u6362\u4e3a\u6587\u672c\uff0c\u8fd9\u5bf9\u4e8e\u521b\u5efa\u81ea\u52a8\u5b57\u5e55\u6216\u8bed\u97f3\u8f93\u5165\u6cd5\u975e\u5e38\u6709\u4ef7\u503c\u3002<\/li>\n<li><strong>\u547d\u4ee4\u8bc6\u522b<\/strong>\uff1a\u5728\u667a\u80fd\u52a9\u624b\u548c\u8bed\u97f3\u63a7\u5236\u8bbe\u5907\u4e2d\uff0cLSTM\u80fd\u591f\u8bc6\u522b\u548c\u7406\u89e3\u7528\u6237\u7684\u8bed\u97f3\u547d\u4ee4\u3002<\/li>\n<\/ul>\n<h3>\u65f6\u95f4\u5e8f\u5217\u9884\u6d4b<\/h3>\n<p>LSTM\u5728\u65f6\u95f4\u5e8f\u5217\u5206\u6790\u9886\u57df\u663e\u793a\u51fa\u4e86\u5176\u5f3a\u5927\u7684\u9884\u6d4b\u80fd\u529b\uff1a<\/p>\n<ul>\n<li><strong>\u80a1\u7968\u4ef7\u683c\u9884\u6d4b<\/strong>\uff1aLSTM\u80fd\u591f\u5206\u6790\u5386\u53f2\u80a1\u7968\u6570\u636e\uff0c\u9884\u6d4b\u672a\u6765\u7684\u5e02\u573a\u8d8b\u52bf\u3002<\/li>\n<li><strong>\u5929\u6c14\u9884\u6d4b<\/strong>\uff1a\u901a\u8fc7\u5206\u6790\u6c14\u8c61\u6570\u636e\uff0cLSTM\u53ef\u4ee5\u9884\u6d4b\u5929\u6c14\u6a21\u5f0f\u548c\u957f\u671f\u6c14\u5019\u53d8\u5316\u3002<\/li>\n<li><strong>\u80fd\u6e90\u6d88\u8017\u9884\u6d4b<\/strong>\uff1aLSTM\u80fd\u591f\u9884\u6d4b\u7535\u529b\u9700\u6c42\u6216\u53ef\u518d\u751f\u80fd\u6e90\u7684\u4ea7\u51fa\uff0c\u5e2e\u52a9\u4f18\u5316\u80fd\u6e90\u5206\u914d\u3002<\/li>\n<\/ul>\n<h3>\u89c6\u9891\u5206\u6790<\/h3>\n<p>\u7ed3\u5408\u5377\u79ef\u795e\u7ecf\u7f51\u7edc\uff08CNN\uff09\uff0cLSTM\u80fd\u591f\u5904\u7406\u89c6\u9891\u6570\u636e\uff0c\u5b9e\u73b0\u9ad8\u7ea7\u7684\u89c6\u9891\u5185\u5bb9\u7406\u89e3\uff1a<\/p>\n<ul>\n<li><strong>\u52a8\u4f5c\u8bc6\u522b<\/strong>\uff1aLSTM\u53ef\u4ee5\u8bc6\u522b\u89c6\u9891\u4e2d\u7684\u4eba\u7c7b\u52a8\u4f5c\u548c\u6d3b\u52a8\uff0c\u8fd9\u5728\u76d1\u63a7\u548c\u884c\u4e3a\u5206\u6790\u4e2d\u975e\u5e38\u6709\u7528\u3002<\/li>\n<li><strong>\u573a\u666f\u5206\u7c7b<\/strong>\uff1aLSTM\u80fd\u591f\u5bf9\u89c6\u9891\u573a\u666f\u8fdb\u884c\u5206\u7c7b\uff0c\u4f8b\u5982\u533a\u5206\u4e0d\u540c\u7684\u4f53\u80b2\u8d5b\u4e8b\u6216\u7535\u5f71\u573a\u666f\u3002<\/li>\n<\/ul>\n<h3>\u5f02\u5e38\u68c0\u6d4b<\/h3>\n<p>LSTM\u5728\u5f02\u5e38\u68c0\u6d4b\u65b9\u9762\u4e5f\u5c55\u73b0\u51fa\u4e86\u5176\u72ec\u7279\u7684\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li><strong>\u6b3a\u8bc8\u68c0\u6d4b<\/strong>\uff1aLSTM\u80fd\u591f\u5b66\u4e60\u6b63\u5e38\u7684\u4ea4\u6613\u6a21\u5f0f\uff0c\u5e76\u8bc6\u522b\u51fa\u6f5c\u5728\u7684\u6b3a\u8bc8\u884c\u4e3a\u3002<\/li>\n<li><strong>\u7f51\u7edc\u5b89\u5168<\/strong>\uff1aLSTM\u80fd\u591f\u76d1\u6d4b\u7f51\u7edc\u6d41\u91cf\uff0c\u68c0\u6d4b\u51fa\u5f02\u5e38\u7684\u7f51\u7edc\u5165\u4fb5\u5c1d\u8bd5\u3002<\/li>\n<\/ul>\n<h3>\u63a8\u8350\u7cfb\u7edf<\/h3>\n<p>\u5728\u63a8\u8350\u7cfb\u7edf\u4e2d\uff0cLSTM\u80fd\u591f\u63d0\u4f9b\u4e2a\u6027\u5316\u7684\u63a8\u8350\uff1a<\/p>\n<ul>\n<li><strong>\u7528\u6237\u884c\u4e3a\u5b66\u4e60<\/strong>\uff1aLSTM\u80fd\u591f\u5206\u6790\u7528\u6237\u7684\u5386\u53f2\u884c\u4e3a\uff0c\u5305\u62ec\u8d2d\u4e70\u5386\u53f2\u3001\u6d4f\u89c8\u8bb0\u5f55\u7b49\uff0c\u4ee5\u9884\u6d4b\u7528\u6237\u7684\u504f\u597d\u3002<\/li>\n<li><strong>\u52a8\u6001\u63a8\u8350<\/strong>\uff1aLSTM\u80fd\u591f\u5b9e\u65f6\u66f4\u65b0\u63a8\u8350\uff0c\u4ee5\u54cd\u5e94\u7528\u6237\u884c\u4e3a\u7684\u53d8\u5316\u3002<\/li>\n<\/ul>\n<p>LSTM\u4f5c\u4e3a\u4e00\u79cd\u5148\u8fdb\u7684\u5faa\u73af\u795e\u7ecf\u7f51\u7edc\uff0c\u5df2\u7ecf\u5728\u591a\u4e2a\u9886\u57df\u8bc1\u660e\u4e86\u5176\u6709\u6548\u6027\u548c\u5f3a\u5927\u7684\u80fd\u529b\u3002\u968f\u7740\u7814\u7a76\u7684\u6df1\u5165\u548c\u6280\u672f\u7684\u53d1\u5c55\uff0cLSTM\u53ca\u5176\u53d8\u4f53\u5c06\u7ee7\u7eed\u5728\u4eba\u5de5\u667a\u80fd\u9886\u57df\u53d1\u6325\u91cd\u8981\u4f5c\u7528\uff0c\u63a8\u52a8\u667a\u80fd\u7cfb\u7edf\u7684\u8fdb\u6b65\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u4eba\u5de5\u667a\u80fd\u548c\u673a\u5668\u5b66\u4e60\u9886\u57df\uff0c\u957f\u77ed\u671f\u8bb0\u5fc6\u7f51\u7edc\uff08LSTM\uff09\u5df2\u7ecf\u6210\u4e3a\u89e3\u51b3\u5e8f\u5217\u9884\u6d4b\u95ee\u9898\u7684\u5f3a\u5927\u5de5\u5177\u3002LSTM\u662f\u4e00\u79cd\u7279\u6b8a\u7c7b\u578b\u7684\u5faa\u73af\u795e\u7ecf\u7f51\u7edc\uff08RNN\uff09\uff0c\u5b83\u80fd\u591f\u5b66\u4e60\u6570\u636e\u4e2d\u7684\u957f\u671f\u4f9d\u8d56\u5173\u7cfb\uff0c\u8fd9\u4f7f\u5f97\u5b83\u5728\u8bf8\u5982\u8bed\u8a00\u7ffb\u8bd1\u3001\u8bed\u97f3\u8bc6\u522b\u548c\u65f6\u95f4\u5e8f\u5217\u9884\u6d4b\u7b49\u4efb\u52a1\u4e2d\u8868\u73b0\u51fa\u8272\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdLSTM\u7684\u57fa\u672c\u6982\u5ff5\u3001\u7ed3\u6784\u3001\u4e0e\u4f20\u7edfRNN\u7684\u5bf9\u6bd4\u3001\u4f18\u7f3a\u70b9\u4ee5\u53ca\u5e7f\u6cdb\u5e94\u7528\u7684\u9886\u57df\u3002 \u4ec0\u4e48\u662fLSTM LSTM\uff0c\u5168\u79f0\u4e3aLong Short-Term Memory\uff0c\u4e2d\u6587\u4e3a\u201c\u957f\u77ed\u671f\u8bb0\u5fc6\u7f51\u7edc\u201d\uff0c\u7531Sepp Hochreiter\u548cJ\u00fcrgen Schmidhuber\u57281997\u5e74\u63d0\u51fa\uff0c\u662f\u4e00\u79cd\u80fd\u591f\u8bb0\u4f4f\u957f\u671f\u4fe1\u606f\u5e76\u7528\u4e8e\u672a\u6765\u8ba1\u7b97\u7684\u6df1\u5ea6\u5b66\u4e60\u7b97\u6cd5\u3002LSTM\u7684\u8bbe\u8ba1\u521d\u8877\u662f\u4e3a\u4e86\u89e3\u51b3\u4f20\u7edf\u5faa\u73af\u795e\u7ecf\u7f51\u7edcRNN\u5728\u5904\u7406\u957f\u5e8f\u5217\u6570\u636e\u65f6\u9047\u5230\u7684\u68af\u5ea6\u6d88\u5931\u95ee\u9898\u3002LSTM\u901a\u8fc7\u5f15\u5165\u7279\u6b8a\u7684\u7ed3\u6784\u2014\u8bb0\u5fc6\u5355\u5143\u4ee5\u53ca\u63a7\u5236\u4fe1\u606f\u6d41\u7684\u95e8\u63a7\u673a\u5236\uff0c\u4f7f\u5176\u80fd\u591f\u5b66\u4e60\u5e76\u8bb0\u4f4f\u957f\u671f\u7684\u4fe1\u606f\uff0c\u540c\u65f6\u5ffd\u7565\u4e0d\u91cd\u8981\u7684\u4fe1\u606f\u3002 LSTM\u7684\u7ed3\u6784 LSTM\u7f51\u7edc\u7684\u6838\u5fc3\u662f\u5176\u72ec\u7279\u7684\u8bb0\u5fc6\u5355\u5143\u548c\u95e8\u63a7\u673a\u5236\u3002\u6bcf\u4e2aLSTM\u5355\u5143\u5305\u542b\u4e09\u4e2a\u4e3b\u8981\u7684\u95e8\uff1a\u8f93\u5165\u95e8\uff08Input Gate\uff09\u3001\u9057\u5fd8\u95e8\uff08Forget Gate\uff09\u548c\u8f93\u51fa\u95e8\uff08Output Gate\uff09\u3002 \u8bb0\u5fc6\u5355\u5143\uff08Memory Cell\uff09\uff1aLSTM\u4e2d\u7684\u6bcf\u4e2a\u5355\u5143\u90fd\u5305\u542b\u4e00\u4e2a\u8bb0\u5fc6\u5355\u5143\uff0c\u5b83\u662f\u4fe1\u606f\u5728\u7f51\u7edc\u4e2d\u6d41\u52a8\u7684\u8f7d\u4f53\u3002\u8bb0\u5fc6\u5355\u5143\u53ef\u4ee5\u5b58\u50a8\u4fe1\u606f\uff0c\u5e76\u5728\u6574\u4e2a\u5e8f\u5217\u5904\u7406\u8fc7\u7a0b\u4e2d\u4fdd\u6301\u8fd9\u4e9b\u4fe1\u606f\u3002\u8bb0\u5fc6\u5355\u5143\u7684\u72b6\u6001\u88ab\u79f0\u4e3a\u7ec6\u80de\u72b6\u6001\uff08cell state\uff09\uff0c\u5b83\u901a\u8fc7\u4e00\u7cfb\u5217\u590d\u6742\u7684\u64cd\u4f5c\u8fdb\u884c\u66f4\u65b0\u3002 \u9057\u5fd8\u95e8\uff08Forget Gate\uff09\uff1a\u9057\u5fd8\u95e8\u662fLSTM\u5355\u5143\u7684\u7b2c\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u5b83\u7684\u4e3b\u8981\u4efb\u52a1\u662f\u51b3\u5b9a\u54ea\u4e9b\u4fe1\u606f\u5e94\u8be5\u4ece\u7ec6\u80de\u72b6\u6001\u4e2d\u88ab\u9057\u5fd8\u6216\u4fdd\u7559\u3002\u9057\u5fd8\u95e8\u63a5\u6536\u524d\u4e00\u4e2a\u65f6\u95f4\u6b65\u7684\u9690\u85cf\u72b6\u6001\u548c\u5f53\u524d\u65f6\u95f4\u6b65\u7684\u8f93\u5165\uff0c\u5e76\u901a\u8fc7\u4e00\u4e2asigmoid\u51fd\u6570\u751f\u6210\u4e00\u4e2a0\u52301\u4e4b\u95f4\u7684\u503c\uff0c\u8868\u793a\u9057\u5fd8\u7684\u7a0b\u5ea6\u3002\u5982\u679c\u9057\u5fd8\u95e8\u7684\u8f93\u51fa\u63a5\u8fd10\uff0c\u5219\u8868\u793a\u4fdd\u7559\u4fe1\u606f\uff1b\u5982\u679c\u63a5\u8fd11\uff0c\u5219\u8868\u793a\u9057\u5fd8\u4fe1\u606f\u3002 \u8f93\u5165\u95e8\uff08Input Gate\uff09\uff1a\u8f93\u5165\u95e8\u7531\u4e24\u90e8\u5206\u7ec4\u6210\uff1a\u4e00\u4e2asigmoid\u5c42\u548c\u4e00\u4e2atanh\u5c42\u3002sigmoid\u5c42\u8d1f\u8d23\u51b3\u5b9a\u54ea\u4e9b\u503c\u5c06\u88ab\u66f4\u65b0\uff0c\u5176\u8f93\u51fa\u4e5f\u57280\u52301\u4e4b\u95f4\u3002tanh\u5c42\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5019\u9009\u5411\u91cf\uff0c\u8fd9\u4e2a\u5411\u91cf\u5305\u542b\u53ef\u80fd\u88ab\u52a0\u5165\u5230\u7ec6\u80de\u72b6\u6001\u4e2d\u7684\u65b0\u4fe1\u606f\u3002\u7136\u540e\uff0c\u8f93\u5165\u95e8\u5c06sigmoid\u5c42\u7684\u8f93\u51fa\u4e0etanh\u5c42\u7684\u8f93\u51fa\u76f8\u4e58\uff0c\u4ee5\u786e\u5b9a\u6700\u7ec8\u66f4\u65b0\u5230\u7ec6\u80de\u72b6\u6001\u4e2d\u7684\u4fe1\u606f\u3002 \u8f93\u51fa\u95e8\uff08Output Gate\uff09\uff1a\u8f93\u51fa\u95e8\u8d1f\u8d23\u51b3\u5b9a\u4e0b\u4e00\u4e2a\u9690\u85cf\u72b6\u6001\u7684\u503c\uff0c\u5b83\u57fa\u4e8e\u7ec6\u80de\u72b6\u6001\u548c\u524d\u4e00\u4e2a\u9690\u85cf\u72b6\u6001\u8fdb\u884c\u8ba1\u7b97\u3002\u9996\u5148\uff0c\u8f93\u51fa\u95e8\u4f7f\u7528sigmoid\u51fd\u6570\u6765\u786e\u5b9a\u7ec6\u80de\u72b6\u6001\u4e2d\u54ea\u4e9b\u4fe1\u606f\u662f\u91cd\u8981\u7684\uff0c\u5e76\u5c06\u8fd9\u4e9b\u4fe1\u606f\u7684\u52a0\u6743\u548c\u4f5c\u4e3a\u9690\u85cf\u72b6\u6001\u7684\u4e00\u90e8\u5206\u3002\u7136\u540e\uff0c\u8f93\u51fa\u95e8\u4f7f\u7528tanh\u51fd\u6570\u5904\u7406\u7ec6\u80de\u72b6\u6001\uff0c\u751f\u6210\u4e00\u4e2a\u8f93\u51fa\u5411\u91cf\uff0c\u8fd9\u4e2a\u5411\u91cf\u4e0esigmoid\u51fd\u6570\u7684\u8f93\u51fa\u76f8\u4e58\uff0c\u5f97\u5230\u6700\u7ec8\u7684\u9690\u85cf\u72b6\u6001\u3002 \u95e8\u63a7\u673a\u5236\u7684\u6570\u5b66\u8868\u8fbe \u6bcf\u4e2a\u95e8\u7684\u64cd\u4f5c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6570\u5b66\u516c\u5f0f\u63cf\u8ff0\uff1a \u9057\u5fd8\u95e8\uff1a \ud835\udc53\ud835\udc61=\ud835\udf0e(\ud835\udc4a\ud835\udc53\u22c5[\u210e\ud835\udc61\u22121,\ud835\udc65\ud835\udc61]+\ud835\udc4f\ud835\udc53) \u5176\u4e2d \ud835\udf0e \u662fsigmoid\u51fd\u6570\uff0c \ud835\udc4a\ud835\udc53 \u662f\u9057\u5fd8\u95e8\u7684\u6743\u91cd\u77e9\u9635\uff0c [\u210e\ud835\udc61\u22121,\ud835\udc65\ud835\udc61] \u662f\u524d\u4e00\u4e2a\u9690\u85cf\u72b6\u6001\u548c\u5f53\u524d\u8f93\u5165\u7684\u5408\u5e76\uff0c \ud835\udc4f\ud835\udc53 \u662f\u504f\u7f6e\u9879\u3002 \u8f93\u5165\u95e8\uff1a \ud835\udc56\ud835\udc61=\ud835\udf0e(\ud835\udc4a\ud835\udc56\u22c5[\u210e\ud835\udc61\u22121,\ud835\udc65\ud835\udc61]+\ud835\udc4f\ud835\udc56) \ud835\udc36~\ud835\udc61=tanh\u2061(\ud835\udc4a\ud835\udc36\u22c5[\u210e\ud835\udc61\u22121,\ud835\udc65\ud835\udc61]+\ud835\udc4f\ud835\udc36) \u5176\u4e2d \ud835\udc56\ud835\udc61 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