{"id":229535,"date":"2024-05-11T21:34:08","date_gmt":"2024-05-11T13:34:08","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/229535.html"},"modified":"2024-05-11T21:34:19","modified_gmt":"2024-05-11T13:34:19","slug":"word2vec%e6%80%8e%e4%b9%88%e8%af%bb","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/229535.html","title":{"rendered":"word2vec\u600e\u4e48\u8bfb"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25152330\/df86953d-236c-4b03-a2d8-a041bfdfe75b.webp\" alt=\"word2vec\u600e\u4e48\u8bfb\" \/><\/p>\n<p><p>Word2Vec\u53ef\u4ee5\u88ab\u8bfb\u4f5c\u201c\u8bcd\u5411\u91cf\u201d\uff0c<strong>\u5b83\u662f\u4e00\u7ec4\u7528\u6765\u5c06\u5355\u8bcd\u8f6c\u6362\u6210\u5411\u91cf\u7684\u76f8\u5173\u6a21\u578b\u3002<\/strong> \u8fd9\u4e9b\u6a21\u578b\u662f\u6d45\u5c42\u53cc\u5c42\u795e\u7ecf\u7f51\u7edc\uff0c\u88ab\u8bad\u7ec3\u4ee5\u91cd\u65b0\u6784\u9020\u8bed\u8a00\u7684\u4e0a\u4e0b\u6587\uff0c\u5e76\u53ef\u4ee5\u7528\u4e8e\u4ece\u539f\u59cb\u6587\u672c\u6570\u636e\u4e2d\u5b66\u4e60\u8bcd\u6c47\u7684\u5206\u5e03\u5f0f\u8868\u793a\u3002\u5176\u672c\u8d28\u662f\u901a\u8fc7\u5b66\u4e60\u5c06\u5355\u8bcd\u6620\u5c04\u5230\u4e00\u4e2a\u9ad8\u7ef4\u7a7a\u95f4\u5185\u7684\u70b9\uff0c\u4ece\u800c\u80fd\u591f\u901a\u8fc7\u8fd9\u4e9b\u5411\u91cf\u7684\u8ba1\u7b97\uff0c\u6355\u6349\u5355\u8bcd\u4e4b\u95f4\u7684\u76f8\u4f3c\u6027\u548c\u8bed\u6cd5\u5173\u7cfb\u3002<\/p>\n<\/p>\n<p><p>Word2Vec\u6a21\u578b\u4e3b\u8981\u5305\u62ec\u4e24\u79cd\u67b6\u6784\uff1a\u8fde\u7eed\u8bcd\u888b\uff08CBOW\uff09\u548c\u8fde\u7eed\u8df3\u8dc3\uff08Skip-gram\uff09\u3002\u5728\u8fd9\u4e24\u79cd\u65b9\u6cd5\u4e2d\uff0c\u6bcf\u4e2a\u5355\u8bcd\u90fd\u88ab\u8f6c\u6362\u6210\u4e00\u4e2a\u7531\u591a\u4e2a\u5143\u7d20\u6784\u6210\u7684\u5411\u91cf\uff0c\u5176\u4e2d\u6bcf\u4e2a\u5143\u7d20\u4ee3\u8868\u4e00\u4e2a\u7279\u5b9a\u7684\u8bed\u4e49\u7ef4\u5ea6\u6216\u8def\u5f84\u3002\u8bcd\u5411\u91cf\u95f4\u7684\u8ddd\u79bb\u548c\u65b9\u5411\u80fd\u591f\u8868\u8fbe\u8bcd\u4e49\u76f8\u5173\u6027\uff0c\u5e38\u7528\u4e8e\u81ea\u7136\u8bed\u8a00\u5904\u7406\u4efb\u52a1\u4e2d\uff0c\u4f8b\u5982\u60c5\u611f\u5206\u6790\u3001\u673a\u5668\u7ffb\u8bd1\u548c\u8bed\u8a00\u5efa\u6a21\u7b49\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001WORD2VEC\u6a21\u578b\u539f\u7406<\/p>\n<\/p>\n<p><p><strong>Word2Vec\u6a21\u578b\u901a\u8fc7\u795e\u7ecf\u7f51\u7edc\u5b66\u4e60\u5355\u8bcd\u7684\u5206\u5e03\u5f0f\u8868\u793a\u3002<\/strong> \u5728\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\uff0c\u6a21\u578b\u7684\u76ee\u6807\u662f\u627e\u5230\u80fd\u591f\u6700\u5927\u5316\u4e0a\u4e0b\u6587\u4fe1\u606f\u9884\u6d4b\u51c6\u786e\u5ea6\u7684\u5355\u8bcd\u8868\u793a\u3002\u8fd9\u8868\u793a\u7740\u8bcd\u5411\u91cf\u4e4b\u95f4\u7684\u76f8\u5bf9\u4f4d\u7f6e\u80fd\u591f\u53cd\u6620\u5b9e\u9645\u8bcd\u6c47\u4e4b\u95f4\u7684\u8bed\u4e49\u548c\u8bed\u6cd5\u5173\u7cfb\u3002<\/p>\n<\/p>\n<p><p>\u8fde\u7eed\u8bcd\u888b\uff08CBOW\uff09\uff1a<\/p>\n<p>CBOW\u6a21\u578b\u4ee5\u67d0\u4e2a\u7279\u5b9a\u5355\u8bcd\u7684\u4e0a\u4e0b\u6587\uff08\u5468\u56f4\u7684\u5355\u8bcd\uff09\u4f5c\u4e3a\u8f93\u5165\uff0c\u9884\u6d4b\u8be5\u5355\u8bcd\u672c\u8eab\u3002\u8fd9\u4e2a\u6a21\u578b\u91cd\u70b9\u5728\u4e8e\uff0c\u901a\u8fc7\u5468\u8fb9\u5355\u8bcd\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f\u63a8\u65ad\u76ee\u6807\u5355\u8bcd\uff0c\u4ece\u800c\u4e3a\u6bcf\u4e2a\u5355\u8bcd\u751f\u6210\u4e00\u4e2a\u7cbe\u786e\u7684\u8bcd\u5411\u91cf\u3002\u56e0\u6b64\uff0c\u5373\u4f7f\u6587\u672c\u6570\u636e\u4e2d\u6709\u5927\u91cf\u7684\u9ad8\u9891\u8bcd\uff0cCBOW\u6a21\u578b\u4e5f\u80fd\u591f\u6709\u6548\u5730\u5904\u7406\u8fd9\u4e9b\u4fe1\u606f\u3002  <\/p>\n<\/p>\n<p><p>\u8fde\u7eed\u8df3\u8dc3\uff08Skip-gram\uff09\uff1a<\/p>\n<p>\u4e0eCBOW\u76f8\u53cd\uff0cSkip-gram\u6a21\u578b\u4f7f\u7528\u4e00\u4e2a\u7279\u5b9a\u7684\u5355\u8bcd\u4f5c\u4e3a\u8f93\u5165\uff0c\u6765\u9884\u6d4b\u5b83\u7684\u4e0a\u4e0b\u6587\u3002\u5728Skip-gram\u6a21\u578b\u4e2d\uff0c\u76ee\u6807\u662f\u521b\u5efa\u4e00\u4e2a\u80fd\u591f\u51c6\u786e\u9884\u6d4b\u4e00\u4e2a\u8bcd\u5916\u56f4\u4e0a\u4e0b\u6587\u7684\u5355\u8bcd\u8868\u793a\u3002\u8be5\u65b9\u6cd5\u5bf9\u5c0f\u578b\u6570\u636e\u96c6\u7279\u522b\u6709\u6548\uff0c\u540c\u65f6\u5b83\u5bf9\u5c11\u89c1\u8bcd\u6c47\u6216\u590d\u6742\u6837\u672c\u8868\u73b0\u51fa\u66f4\u597d\u7684\u5904\u7406\u80fd\u529b\u3002 <\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u795e\u7ecf\u7f51\u7edc\u7ed3\u6784\u548c\u8bad\u7ec3\u65b9\u6cd5<\/p>\n<\/p>\n<p><p>\u795e\u7ecf\u7f51\u7edc\u7684\u7ed3\u6784\uff1a<\/p>\n<p>Word2Vec\u4f7f\u7528\u7684\u6d45\u5c42\u795e\u7ecf\u7f51\u7edc\u7ed3\u6784\u5927\u81f4\u5206\u4e3a\u8f93\u5165\u5c42\u3001\u6295\u5f71\u5c42\u548c\u8f93\u51fa\u5c42\u3002<strong>\u8f93\u5165\u5c42\u63a5\u6536\u5355\u8bcd\u7684\u539f\u59cb\u8868\u793a\uff08\u4e00\u822c\u4e3a\u72ec\u70ed\u7f16\u7801\uff09\uff0c\u6295\u5f71\u5c42\u5c06\u8fd9\u4e9b\u5355\u8bcd\u7f16\u7801\u4e3a\u9884\u8bad\u7ec3\u7684\u5bc6\u96c6\u8bcd\u5411\u91cf\uff0c\u5e76\u5728\u8f93\u51fa\u5c42\u63d0\u4f9b\u4e0a\u4e0b\u6587\u9884\u6d4b\u3002<\/strong> \u6240\u5f97\u5230\u7684\u8bcd\u5411\u91cf\u4fbf\u80fd\u591f\u8868\u5f81\u5355\u8bcd\u7684\u8bed\u4e49\u548c\u8bed\u6cd5\u4fe1\u606f\u3002<\/p>\n<\/p>\n<p><p>\u8bad\u7ec3\u65b9\u6cd5\uff1a<\/p>\n<p>Word2Vec\u6a21\u578b\u901a\u5e38\u4f7f\u7528\u4e24\u79cd\u8bad\u7ec3\u65b9\u6cd5\uff1a\u8d1f\u91c7\u6837\uff08Negative Sampling\uff09\u548c\u5c42\u6b21\u5316softmax\uff08Hierarchical Softmax\uff09\u3002\u8d1f\u91c7\u6837\u901a\u8fc7\u968f\u673a\u9009\u53d6\u8d1f\u6837\u672c\u6765\u66f4\u65b0\u6743\u91cd\uff0c\u5927\u5927\u7b80\u5316\u4e86\u6a21\u578b\u590d\u6742\u6027\u5e76\u63d0\u9ad8\u4e86\u8bad\u7ec3\u901f\u5ea6\u3002\u5c42\u6b21\u5316softmax\u901a\u8fc7\u6784\u5efa\u4e00\u4e2a\u970d\u592b\u66fc\uff08Huffman\uff09\u7f16\u7801\u6811\u6765\u4ee3\u66ff\u4f20\u7edf\u7684softmax\uff0c\u63d0\u9ad8\u4e86\u5904\u7406\u5927\u8bcd\u6c47\u8868\u65f6\u7684\u6548\u7387\u3002 <\/p>\n<\/p>\n<p><p>\u4e09\u3001\u4f18\u5316\u548c\u6539\u8fdb<\/p>\n<\/p>\n<p><p>\u6a21\u578b\u4f18\u5316\uff1a<\/p>\n<p>\u4e3a\u4e86\u63d0\u9ad8Word2Vec\u6a21\u578b\u7684\u6027\u80fd\u548c\u51c6\u786e\u6027\uff0c\u8fdb\u884c\u4e86\u8bb8\u591a\u4f18\u5316\u63aa\u65bd\uff0c\u4f8b\u5982\u5b50\u91c7\u6837\u9891\u7e41\u51fa\u73b0\u7684\u5355\u8bcd\u3001\u8c03\u6574\u4e0a\u4e0b\u6587\u7684\u7a97\u53e3\u5927\u5c0f\u3001\u4ee5\u53ca\u4f7f\u7528\u5404\u79cd\u6b63\u5219\u5316\u6280\u5de7\u3002<strong>\u5b50\u91c7\u6837\u7b56\u7565\u7279\u522b\u6709\u6548\uff0c\u5b83\u968f\u673a\u5ffd\u7565\u9ad8\u9891\u8bcd\uff0c\u4f7f\u6a21\u578b\u66f4\u591a\u5730\u805a\u7126\u4e8e\u4fe1\u606f\u91cf\u5927\u7684\u8bcd\u6c47\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u7b97\u6cd5\u6539\u8fdb\uff1a<\/p>\n<p>\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u7814\u7a76\u4eba\u5458\u63d0\u51fa\u4e86\u5404\u79cd\u6539\u8fdbWord2Vec\u7684\u7b97\u6cd5\uff0c\u4f8b\u5982GloVe\uff08\u5168\u5c40\u5411\u91cf\u7684\u5355\u8bcd\u8868\u5f81\uff09\u548cfastText\u3002\u8fd9\u4e9b\u7b97\u6cd5\u5728Word2Vec\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u4e86\u8c03\u6574\uff0c\u6539\u5584\u4e86\u5411\u91cf\u8868\u793a\u7684\u8d28\u91cf\uff0c\u5e76\u80fd\u591f\u66f4\u597d\u5730\u6355\u6349\u8bcd\u6c47\u4e4b\u95f4\u7684\u590d\u6742\u6a21\u5f0f\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u5e94\u7528\u573a\u666f<\/p>\n<\/p>\n<p><p>\u81ea\u7136\u8bed\u8a00\u5904\u7406\u4efb\u52a1\uff1a<\/p>\n<p>Word2Vec\u8bcd\u5411\u91cf\u5df2\u6210\u4e3a\u591a\u79cdNLP\u4efb\u52a1\u7684\u57fa\u7840\u90e8\u4ef6\uff0c\u7528\u4e8e\u60c5\u611f\u5206\u6790\u3001\u6587\u672c\u5206\u7c7b\u3001\u673a\u5668\u7ffb\u8bd1\u7b49\u3002<strong>\u5b83\u901a\u8fc7\u5c06\u8bcd\u8f6c\u5316\u4e3a\u673a\u5668\u80fd\u591f\u7406\u89e3\u7684\u6570\u503c\u6570\u636e\uff0c\u4e3a\u4e0b\u6e38\u4efb\u52a1\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u8bed\u4e49\u7406\u89e3\u57fa\u7840\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u8bcd\u8bed\u76f8\u4f3c\u6027\u548c\u7c7b\u6bd4\uff1a<\/p>\n<p>\u5229\u7528Word2Vec\u6a21\u578b\u6240\u5f97\u7684\u8bcd\u5411\u91cf\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba1\u7b97\u5355\u8bcd\u4e4b\u95f4\u7684\u4f59\u5f26\u76f8\u4f3c\u5ea6\uff0c\u627e\u51fa\u8bed\u4e49\u4e0a\u76f8\u4f3c\u6216\u76f8\u5173\u7684\u8bcd\u6c47\u3002\u6b64\u5916\uff0cWord2Vec\u7684\u5411\u91cf\u7a7a\u95f4\u8fd8\u80fd\u8fdb\u884c\u6709\u8da3\u7684\u7c7b\u6bd4\u63a8\u7406\uff0c\u5982\u201c\u56fd\u738b\u201d\u4e0e\u201c\u7537\u4eba\u201d\u7684\u5173\u7cfb\u7c7b\u4f3c\u4e8e\u201c\u5973\u738b\u201d\u4e0e\u201c\u5973\u4eba\u201d\u7684\u5173\u7cfb\uff0c\u53cd\u6620\u5728\u5411\u91cf\u8fd0\u7b97\u4e0a\u5c31\u662f\u5dee\u5f02\u5411\u91cf\u7684\u52a0\u51cf\u3002<\/p>\n<\/p>\n<p><p>\u7efc\u4e0a\u6240\u8ff0\uff0cWord2Vec\u6a21\u578b\u662f\u4e00\u79cd\u6709\u6548\u7684\u5de5\u5177\uff0c\u53ef\u5728\u81ea\u7136\u8bed\u8a00\u5904\u7406\u9886\u57df\u4e2d\u7528\u4e8e\u6355\u6349\u548c\u8868\u8fbe\u5355\u8bcd\u4e4b\u95f4\u7684\u590d\u6742\u5173\u7cfb\u3002\u5176\u751f\u6210\u7684\u9ad8\u8d28\u91cf\u8bcd\u5411\u91cf\u5bf9\u4e8e\u7406\u89e3\u4eba\u7c7b\u8bed\u8a00\u548c\u63d0\u5347<a href=\"https:\/\/docs.pingcode.com\/ask\/59192.html\" target=\"_blank\">\u673a\u5668\u5b66\u4e60<\/a>\u6a21\u578b\u7684\u6027\u80fd\u53d1\u6325\u7740\u91cd\u8981\u4f5c\u7528\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>1. \u5982\u4f55\u4f7f\u7528word2vec\u6a21\u578b\u8fdb\u884c\u6587\u672c\u8bed\u4e49\u8868\u793a\u7684\u8bad\u7ec3\u4e0e\u8bfb\u53d6\uff1f<\/strong><br \/>\nword2vec\u6a21\u578b\u662f\u4e00\u79cd\u7528\u4e8e\u5c06\u6587\u672c\u8f6c\u5316\u4e3a\u5411\u91cf\u8868\u793a\u7684\u6280\u672f\u3002\u8bad\u7ec3word2vec\u6a21\u578b\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u8fde\u7eed\u8bcd\u888b\u6a21\u578b\uff08CBOW\uff09\u548cSkip-Gram\u6a21\u578b\u3002\u901a\u8fc7\u4f7f\u7528\u8fd9\u4e9b\u6a21\u578b\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u6bcf\u4e2a\u5355\u8bcd\u6216\u8bcd\u7ec4\u8868\u793a\u4e3a\u9ad8\u7ef4\u5ea6\u7684\u5411\u91cf\uff0c\u7528\u4e8e\u8861\u91cf\u5176\u5728\u8bed\u4e49\u7a7a\u95f4\u4e2d\u7684\u5173\u7cfb\u3002<\/p>\n<p>\u5f53\u4f60\u60f3\u8bfb\u53d6word2vec\u6a21\u578b\u65f6\uff0c\u9996\u5148\u9700\u8981\u52a0\u8f7d\u6a21\u578b\u6587\u4ef6\u3002\u53ef\u4ee5\u4f7f\u7528Python\u4e2d\u7684gensim\u5e93\uff0c\u901a\u8fc7\u8c03\u7528Word2Vec.load()\u65b9\u6cd5\u6765\u52a0\u8f7d\u6a21\u578b\u3002\u8fd9\u5c06\u8fd4\u56de\u4e00\u4e2aWord2Vec\u5bf9\u8c61\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u8be5\u5bf9\u8c61\u6765\u8fdb\u884c\u5404\u79cd\u64cd\u4f5c\uff0c\u5982\u83b7\u53d6\u67d0\u4e2a\u8bcd\u7684\u5411\u91cf\u8868\u793a\u3001\u8ba1\u7b97\u4e24\u4e2a\u8bcd\u4e4b\u95f4\u7684\u76f8\u4f3c\u5ea6\u7b49\u3002<\/p>\n<p><strong>2. \u6211\u8be5\u5982\u4f55\u4f7f\u7528word2vec\u6a21\u578b\u8fdb\u884c\u8bcd\u8bed\u76f8\u4f3c\u5ea6\u8ba1\u7b97\uff1f<\/strong><br 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