{"id":370,"date":"2026-02-13T22:54:00","date_gmt":"2026-02-13T14:54:00","guid":{"rendered":"https:\/\/mitongxue.cn\/?p=370"},"modified":"2026-06-12T22:57:55","modified_gmt":"2026-06-12T14:57:55","slug":"embedding","status":"publish","type":"post","link":"https:\/\/mitongxue.cn\/index.php\/2026\/02\/13\/embedding\/","title":{"rendered":"Embedding"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5d4c\u5165\uff08Embedding\uff09\uff0c\u8fd9\u662f\u4e00\u79cd\u5bfb\u627e\u8bcd\u548c\u8bcd\u4e4b\u95f4\u76f8\u4f3c\u6027\u7684 NLP \u6280\u672f\uff0c\u5b83\u628a\u8bcd\u6c47\u5404\u4e2a\u7ef4\u5ea6\u4e0a\u7684\u7279\u5f81\u7528\u6570\u503c\u5411\u91cf\u8fdb\u884c\u8868\u793a\uff0c\u5229\u7528\u8fd9\u4e9b\u7ef4\u5ea6\u4e0a\u7279\u5f81\u7684\u76f8\u4f3c\u7a0b\u5ea6\uff0c\u5c31\u53ef\u4ee5\u5224\u65ad\u51fa\u54ea\u4e9b\u8bcd\u548c\u54ea\u4e9b\u8bcd\u8bed\u4e49\u66f4\u52a0\u63a5\u8fd1\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u6587\u672c\u8fdb\u884c\u5d4c\u5165\u64cd\u4f5c\uff1a\u4f1a\u751f\u51fa\u5411\u91cf\u7684\u8868\u793a\u5f62\u5f0f<\/li>\n\n\n\n<li>\u5bf9\u6587\u672c\u8fdb\u884c\u5411\u91cf\u5316\u64cd\u4f5c\uff1a\u548c\u4e0a\u9762\u4e00\u4e2a\u610f\u601d<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u57fa\u672c\u6982\u5ff5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3e\u4e2a\u4f8b\u5b50\uff1a\u5047\u8bbe\u6709\u8fd9\u4e48\u4e00\u6bb5\u6587\u672c<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u6211\u559c\u6b22\u5c0f\u732b\u548c\u5c0f\u72d7<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ecf\u8fc7\u5206\u8bcd\u5668\uff08Tokenizer\uff09\u5904\u7406\u540e\uff0c\u4f1a\u53d8\u6210\u8bcd\u5143 ID \u5217\u8868\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u8bcd\u8bed<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8bcd\u5143ID<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">\u6211<\/td><td class=\"has-text-align-left\" data-align=\"left\">1001<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u559c\u6b22<\/td><td class=\"has-text-align-left\" data-align=\"left\">1002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5c0f\u732b<\/td><td class=\"has-text-align-left\" data-align=\"left\">2001<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u548c<\/td><td class=\"has-text-align-left\" data-align=\"left\">1003<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5c0f\u72d7<\/td><td class=\"has-text-align-left\" data-align=\"left\">2002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u5bf9\u4e8e\u6a21\u578b\u6765\u8bb2\u770b\u5230\u7684\u4ecd\u7136\u53ea\u662f\u4e00\u5806\u7f16\u53f7\uff0c<strong>\u6ca1\u6709\u4efb\u4f55\u8bed\u4e49\u4fe1\u606f<\/strong>\u3002\u63a5\u4e0b\u6765\u8981\u505a\u7684\u5d4c\u5165\u64cd\u4f5c\uff0c\u5c31\u662f\u8981\u7ed9\u8fd9\u4e9b\u8bcd\u6dfb\u52a0\u8bed\u4e49\u4fe1\u606f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u4e0b\u6765\u5f15\u5165\u4e00\u4e2a <strong>\u5d4c\u5165\u77e9\u9635\uff08embedding matrix\uff09<\/strong>\uff0c\u4e3a\u6bcf\u4e2a\u8bcd\u5143\u5d4c\u5165\u5411\u91cf\u4fe1\u606f\u3002\u5411\u91cf\u4fe1\u606f\u662f<strong>\u591a\uff08\u9ad8\uff09\u7ef4\u5ea6<\/strong>\u7684\uff0c\u4e00\u822c\u80fd\u591f\u8fbe\u5230\u6210\u767e\u4e0a\u5343\u7ef4\u5ea6\u3002\u6bcf\u4e00\u4e2a\u7ef4\u5ea6\uff0c\u4ee3\u8868\u7684\u5c31\u662f\u4e00\u4e2a\u8bed\u4e49\u65b9\u5411\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u6211\u4eec\u505a\u4e00\u4e2a\u7b80\u5316\uff0c\u5047\u8bbe\u5c31 4 \u7ef4\u3002\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u5411\u91cf\u7ef4\u5ea6<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u53ef\u80fd\u7684\u8bed\u4e49\u65b9\u5411\uff08\u9690\u542b\uff09<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5c0f\u732b\u7684\u503c<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u7c97\u7565\u542b\u4e49\u7c7b\u6bd4<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">\u7b2c 1 \u7ef4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u662f\u5426\u662f\u52a8\u7269\uff1f<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.72<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u662f\u52a8\u7269\uff0c\u5f97\u5206\u9ad8<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u7b2c 2 \u7ef4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4eb2\u548c\u529b\/\u53ef\u7231\u5ea6<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.35<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7a0d\u5fae\u53ef\u7231<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u7b2c 3 \u7ef4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4f53\u578b\u5927\u5c0f\uff08\u62bd\u8c61\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.11<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6bd4\u8f83\u5c0f<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u7b2c 4 \u7ef4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5bb6\u517b vs \u91ce\u5916<\/td><td class=\"has-text-align-left\" data-align=\"left\">0.80<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u66f4\u504f\u5411\u5bb6\u517b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u90a3\u4e48\u6b64\u65f6\u8bcd\u5143\u5c31\u5d4c\u5165\u4e86\u5411\u91cf\u503c\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Token ID<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8bcd\u8bed<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5d4c\u5165\u5411\u91cf\uff084\u7ef4\uff09<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">2001<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5c0f\u732b<\/td><td class=\"has-text-align-left\" data-align=\"left\">[0.72, 0.35, 0.11, 0.80]<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">2002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5c0f\u72d7<\/td><td class=\"has-text-align-left\" data-align=\"left\">[0.70, 0.38, 0.14, 0.78]<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">1002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u559c\u6b22<\/td><td class=\"has-text-align-left\" data-align=\"left\">[0.10, 0.93, 0.21, 0.11]<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u5728\uff0c\u201c\u5c0f\u732b\u201d\u548c\u201c\u5c0f\u72d7\u201d\u4e0d\u518d\u662f\u51b0\u51b7\u7684\u8bcd\u5143ID\uff0c\u800c\u662f\u201c\u4f4d\u7f6e\u76f8\u8fd1\u7684\u5411\u91cf\u201d\uff0c\u5982\u4e0b\u8868\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u5bf9\u6bd4\u9879<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5c0f\u732b \ud83d\udc31<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5c0f\u72d7 \ud83d\udc36<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5dee\u5f02\u5206\u6790<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">\u8bcd\u5143ID<\/td><td class=\"has-text-align-left\" data-align=\"left\">2001<\/td><td class=\"has-text-align-left\" data-align=\"left\">2002<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6ca1\u6709\u8bed\u4e49<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5d4c\u5165\u5411\u91cf<\/td><td class=\"has-text-align-left\" data-align=\"left\">[0.72, 0.35, 0.11, 0.80]<\/td><td class=\"has-text-align-left\" data-align=\"left\">[0.70, 0.38, 0.14, 0.78]<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e24\u8005\u5411\u91cf\u201c\u5f88\u63a5\u8fd1\u201d<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u7ed3\u8bba<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8868\u793a\u8bed\u4e49\u4e0a\u5f88\u76f8\u4f3c\u7684\u52a8\u7269<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8868\u793a\u8bed\u4e49\u4e0a\u5f88\u76f8\u4f3c\u7684\u52a8\u7269<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6a21\u578b\u4f1a\u628a\u5b83\u4eec\u201c\u5f53\u6210\u76f8\u4f3c\u6982\u5ff5\u201d\u5904\u7406<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u53ef\u4ee5\u5c06\u9ad8\u7ef4\u5411\u91cf\u6295\u5f71\u6210\u4e8c\u7ef4\u7a7a\u95f4\u6765\u201c\u53ef\u89c6\u5316\u201d\u5b83\u4eec\u4e4b\u95f4\u7684\u8bed\u4e49\u5173\u7cfb\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u76f8\u4f3c\u7684\u8bcd\u4f1a\u9760\u5f97\u66f4\u8fd1\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"507\" height=\"339\" src=\"https:\/\/mitongxue.cn\/wp-content\/uploads\/2026\/06\/image-52.png\" alt=\"\" class=\"wp-image-371\" srcset=\"https:\/\/mitongxue.cn\/wp-content\/uploads\/2026\/06\/image-52.png 507w, https:\/\/mitongxue.cn\/wp-content\/uploads\/2026\/06\/image-52-300x201.png 300w\" sizes=\"auto, (max-width: 507px) 100vw, 507px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u201c\u5c0f\u732b\u201d\u548c\u201c\u5c0f\u72d7\u201d\u8fd9\u79cd\u610f\u601d\u76f8\u8fd1\u7684\u8bcd\u5143\uff0c\u4f1a\u9760\u5f97\u66f4\u8fd1<\/li>\n\n\n\n<li>\u201c\u559c\u6b22\u201d\u8fd9\u79cd\u8bed\u4e49\u4e0d\u540c\u7684\u8bcd\uff0c\u4f1a\u79bb\u5b83\u4eec\u7a0d\u8fdc\u4e00\u4e9b<\/li>\n\n\n\n<li>\u201c\u8ba8\u538c\u201d\u201c\u684c\u5b50\u201d\u8fd9\u79cd\u4e0d\u76f8\u5173\u7684\u8bcd\uff0c\u4e5f\u4f1a\u79bb\u5f97\u6bd4\u8f83\u8fdc<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u5411\u8bcd\u5143\u5d4c\u5165\u5411\u91cf\u4fe1\u606f\uff0c\u80fd\u591f\u5e26\u6765\u5982\u4e0b\u7684\u597d\u5904\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4f20\u9012\u8bed\u4e49\u76f8\u4f3c\u6027<\/strong>\uff1a\u76f8\u4f3c\u8bcd\u5411\u91cf\u9760\u8fd1<\/li>\n\n\n\n<li>\u652f\u6301\u4e0a\u4e0b\u6587\u5b66\u4e60\uff1a\u5d4c\u5165\u53ef\u66f4\u65b0<\/li>\n\n\n\n<li><strong>\u53ef\u53c2\u4e0e\u6570\u5b66\u8fd0\u7b97<\/strong>\uff1a\u8bcd\u5411\u91cf\u652f\u6301\u52a0\u51cf<\/li>\n\n\n\n<li>\u8f93\u5165\u7ed9\u795e\u7ecf\u7f51\u7edc\uff1a\u5411\u91cf\u53ef\u8ba1\u7b97\u68af\u5ea6<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Word2Vec<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6587\u672c\u3001\u6587\u5b57 TO Vec\uff08\u5411\u91cf\u90a3\u4e2a\u5355\u8bcd\u7684\u7f29\u5199\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2013\u5e74\uff0c\u6258\u9a6c\u65af\u30fb\u7c73\u514b\u6d1b\u592b\u548c\u4ed6 Google \u7684\u540c\u4e8b\u4eec\u5f00\u53d1\u4e86 Word2Vec \u7b97\u6cd5\uff0cWord2Vec \u91c7\u7528\u4e86\u4e00\u79cd\u9ad8\u6548\u7684\u65b9\u6cd5\u6765\u5b66\u4e60\u8bcd\u6c47\u7684\u8fde\u7eed\u5411\u91cf\u8868\u793a\uff0c\u8fd9\u79cd\u65b9\u6cd5\u5c06\u8bcd\u6c47\u8868\u4e2d\u7684\u6bcf\u4e2a\u8bcd\u90fd\u8868\u793a\u6210<strong>\u56fa\u5b9a\u957f\u5ea6<\/strong>\u7684\u5411\u91cf\uff0c\u4ece\u800c\u4f7f\u5728\u5927\u89c4\u6a21\u6570\u636e\u96c6\u4e0a\u8fdb\u884c\u8bad\u7ec3\u53d8\u5f97\u53ef\u884c\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"843\" height=\"346\" src=\"https:\/\/mitongxue.cn\/wp-content\/uploads\/2026\/06\/image-53.png\" alt=\"\" class=\"wp-image-372\" srcset=\"https:\/\/mitongxue.cn\/wp-content\/uploads\/2026\/06\/image-53.png 843w, https:\/\/mitongxue.cn\/wp-content\/uploads\/2026\/06\/image-53-300x123.png 300w, https:\/\/mitongxue.cn\/wp-content\/uploads\/2026\/06\/image-53-768x315.png 768w\" sizes=\"auto, (max-width: 843px) 100vw, 843px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Word2Vec \u6709\u4e24\u79cd\u8bad\u7ec3\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>CBOW\u6a21\u578b<\/li>\n\n\n\n<li>Skip-Gram\u6a21\u578b<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e24\u79cd\u521a\u597d\u662f\u76f8\u53cd\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. CBOW\u6a21\u578b<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CBOW\u6a21\u578b\u7684\u6838\u5fc3\u601d\u60f3\u662f\uff1a\u7ed9\u5b9a\u4e00\u4e2a\u8bcd\u7684\u4e0a\u4e0b\u6587\uff08<strong>\u524d\u540e\u8bcd<\/strong>\uff09\uff0c\u9884\u6d4b<strong>\u4e2d\u5fc3\u8bcd<\/strong>\uff08\u76ee\u6807\u8bcd\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\u6709\u5982\u4e0b\u53e5\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u6211 \u559c\u6b22 \u5403 \u82f9\u679c<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u8f93\u5165\u4e0a\u4e0b\u6587\uff08\u201c\u6211\u201d\uff0c\u201c\u5403\u201d\uff09\u7684\u65f6\u5019\uff0c\u6a21\u578b\u80fd\u591f\u9884\u6d4b\u51fa\u201c\u559c\u6b22\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Skip-Gram\u6a21\u578b<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Skip-Gram\u6a21\u578b\u5219\u521a\u597d\u76f8\u53cd\uff0c\u6838\u5fc3\u601d\u60f3\u662f\uff1a\u7ed9\u5b9a\u4e2d\u5fc3\u8bcd\uff0c\u9884\u6d4b\u5b83\u7684\u4e0a\u4e0b\u6587\u8bcd\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ecd\u7136\u8fd8\u662f\u8fd9\u4e2a\u53e5\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u6211 \u559c\u6b22 \u5403 \u82f9\u679c<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u8f93\u5165\u4e2d\u5fc3\u8bcd\uff1a\u201c\u559c\u6b22\u201d\u7684\u65f6\u5019\uff0c\u6a21\u578b\u80fd\u591f\u9884\u6d4b\u4e0a\u4e0b\u6587\u8bcd\uff1a\u201c\u6211\u201d\u3001\u201c\u5403\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4e24\u8005\u7684\u5bf9\u6bd4<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u6bd4\u8f83\u9879<\/th><th class=\"has-text-align-left\" data-align=\"left\">CBOW<\/th><th class=\"has-text-align-left\" data-align=\"left\">Skip-Gram<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">\u8bad\u7ec3\u76ee\u6807<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u9884\u6d4b\u4e2d\u5fc3\u8bcd<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u9884\u6d4b\u4e0a\u4e0b\u6587<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u8f93\u5165\u662f\u4ec0\u4e48\uff1f<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e0a\u4e0b\u6587\u8bcd\uff08\u591a\u4e2a\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e2d\u5fc3\u8bcd\uff08\u4e00\u4e2a\uff09<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u8f93\u51fa\u662f\u4ec0\u4e48\uff1f<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e2d\u5fc3\u8bcd\uff08\u4e00\u4e2a\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e0a\u4e0b\u6587\u8bcd\uff08\u591a\u4e2a\uff09<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u8bad\u7ec3\u901f\u5ea6<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5feb<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6162<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5bf9\u7a00\u6709\u8bcd\u8868\u73b0<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e00\u822c<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u66f4\u597d<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u8bed\u4e49\u8868\u8fbe\u80fd\u529b<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5dee\u4e00\u4e9b<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u66f4\u5f3a<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u9002\u5408\u573a\u666f<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5927\u8bcd\u9891\u3001\u9ad8\u6548\u7387\u3001\u77ed\u4e0a\u4e0b\u6587\u7a97\u53e3<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7a00\u6709\u8bcd\u3001\u591a\u8bed\u4e49\u4efb\u52a1\u3001\u5927\u8bed\u6599<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u8bad\u7ec3 Word2Vec \u65f6\uff0c\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528\u5176\u4e2d\u4e00\u79cd\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"721\" height=\"264\" src=\"https:\/\/mitongxue.cn\/wp-content\/uploads\/2026\/06\/image-54.png\" alt=\"\" class=\"wp-image-373\" srcset=\"https:\/\/mitongxue.cn\/wp-content\/uploads\/2026\/06\/image-54.png 721w, https:\/\/mitongxue.cn\/wp-content\/uploads\/2026\/06\/image-54-300x110.png 300w\" sizes=\"auto, (max-width: 721px) 100vw, 721px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u8bad\u7ec3 Word2Vec \u65f6\uff0c\u53ea\u9700\u5728\u4ee3\u7801\u4e2d\u6307\u5b9a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>sg=0<\/code> \u8868\u793a\u4f7f\u7528 CBOW \u6a21\u578b<\/li>\n\n\n\n<li><code>sg=1<\/code> \u8868\u793a\u4f7f\u7528 Skip-Gram \u6a21\u578b<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4ee3\u7801\u5b9e\u8df5<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>train_word2vec.py<\/code> \u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u7528\u4e8e\u505a\u8bad\u7ec3\u5de5\u4f5c\u7684\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import Word2Vec from gensim.models<br>\/\/ \u62ff\u51fa\u725b\u5976\u4ece\u51b0\u7bb1\u91cc<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>from gensim.models import Word2Vec<br># \u4ece\u51b0\u7bb1\u91cc\u62ff\u51fa\u725b\u5976<br>\u200b<br># \u793a\u4f8b\u8bed\u6599<br>sentences = &#91;<br> &nbsp;  &#91;\"i\", \"love\", \"deep\", \"learning\"],<br> &nbsp;  &#91;\"i\", \"love\", \"nlp\"],<br> &nbsp;  &#91;\"deep\", \"learning\", \"is\", \"fun\"],<br> &nbsp;  &#91;\"nlp\", \"is\", \"a\", \"part\", \"of\", \"ai\"],<br> &nbsp;  &#91;\"word2vec\", \"is\", \"a\", \"powerful\", \"embedding\"]<br>]<br>\u200b<br># \u8bad\u7ec3\u6a21\u578b<br>model = Word2Vec(sentences, vector_size=100, window=2, min_count=1, sg=1)<br>\u200b<br># \u4fdd\u5b58\u6a21\u578b<br>model.save(\"word2vec.model\")<br>print(\"\u6a21\u578b\u8bad\u7ec3\u5b8c\u6210\u5e76\u5df2\u4fdd\u5b58\u3002\")<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>test_word2vec.py<\/code> \u7528\u4e8e\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from gensim.models import Word2Vec<br>\u200b<br># \u52a0\u8f7d\u6a21\u578b<br>model = Word2Vec.load(\"word2vec.model\")<br>\u200b<br># \u83b7\u53d6\u67d0\u4e2a\u8bcd\u7684\u8bcd\u5411\u91cf<br>print(\"\u8bcd\u5411\u91cf\uff08nlp\uff09\uff1a\")<br>print(model.wv&#91;\"nlp\"])<br>\u200b<br># \u627e\u51fa\u6700\u76f8\u4f3c\u7684\u8bcd<br>print(\"\\n\u4e0e 'nlp' \u6700\u76f8\u4f3c\u7684\u8bcd\uff1a\")<br>print(model.wv.most_similar(\"nlp\", topn=3))<br>\u200b<br># \u8ba1\u7b97\u4e24\u4e2a\u8bcd\u7684\u76f8\u4f3c\u5ea6<br>print(\"\\n'deep' \u548c 'learning' \u7684\u76f8\u4f3c\u5ea6\uff1a\")<br>print(model.wv.similarity(\"deep\", \"learning\"))<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5d4c\u5165\uff08Embedding\uff09\uff0c\u8fd9\u662f\u4e00\u79cd\u5bfb\u627e\u8bcd\u548c\u8bcd\u4e4b\u95f4..<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-370","post","type-post","status-publish","format-standard","hentry","category-ai"],"featured_image_urls":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","1536x1536":"","2048x2048":""},"author_info":{"info":["\u9648 \u67d0\u4eba"]},"category_info":"<a href=\"https:\/\/mitongxue.cn\/index.php\/category\/ai\/\" rel=\"category tag\">AI<\/a>","tag_info":"AI","comment_count":"0","_links":{"self":[{"href":"https:\/\/mitongxue.cn\/index.php\/wp-json\/wp\/v2\/posts\/370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mitongxue.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mitongxue.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mitongxue.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mitongxue.cn\/index.php\/wp-json\/wp\/v2\/comments?post=370"}],"version-history":[{"count":1,"href":"https:\/\/mitongxue.cn\/index.php\/wp-json\/wp\/v2\/posts\/370\/revisions"}],"predecessor-version":[{"id":374,"href":"https:\/\/mitongxue.cn\/index.php\/wp-json\/wp\/v2\/posts\/370\/revisions\/374"}],"wp:attachment":[{"href":"https:\/\/mitongxue.cn\/index.php\/wp-json\/wp\/v2\/media?parent=370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mitongxue.cn\/index.php\/wp-json\/wp\/v2\/categories?post=370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mitongxue.cn\/index.php\/wp-json\/wp\/v2\/tags?post=370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}