{"id":21908,"date":"2024-11-15T17:50:16","date_gmt":"2024-11-15T09:50:16","guid":{"rendered":"http:\/\/139.9.1.231\/?p=21908"},"modified":"2025-06-20T14:30:25","modified_gmt":"2025-06-20T06:30:25","slug":"n-ways-to-fuse-acoustic-models-and-language-models","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2024\/11\/15\/n-ways-to-fuse-acoustic-models-and-language-models\/","title":{"rendered":"\u58f0\u5b66\u6a21\u578b\u548c\u8bed\u8a00\u6a21\u578b\u878d\u5408\u7684N\u79cd\u65b9\u5f0f"},"content":{"rendered":"\n<p>\u4f5c\u8005\uff1aRyuk<br>\u6765\u6e90\uff1a\u8bed\u97f3\u7b97\u6cd5\u7ec4<br>\u94fe\u63a5\uff1a<a href=\"https:\/\/mp.weixin.qq.com\/s\/PMKFQvPNLJH7qXqp8fWjkA\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/mp.weixin.qq.com\/s\/PMKFQvPNLJH7qXqp8fWjkA<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"354\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-29-1024x354.png\" alt=\"\" class=\"wp-image-21911\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-29-1024x354.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-29-300x104.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-29-768x265.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-29.png 1511w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u8bed\u97f3\u8bc6\u522b\u7b97\u6cd5\u76ee\u7684\u662f\u4ece\u58f0\u5b66\u7279\u5f81<em>x<\/em>\u4e2d\u627e\u5230\u6700\u6709\u53ef\u80fd\u751f\u6210\u7684\u8bcd\u5e8f\u5217y\uff0c\u5373<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"82\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-30-1024x82.png\" alt=\"\" class=\"wp-image-21912\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-30-1024x82.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-30-300x24.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-30-768x62.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-30.png 1205w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u5b8c\u6574\u7684\u8bed\u97f3\u8bc6\u522b\u7b97\u6cd5\u5305\u62ec\u7279\u5f81\u63d0\u53d6\u3001\u58f0\u5b66\u6a21\u578b\u3001\u8bed\u8a00\u6a21\u578b\u548c\u89e3\u7801\uff0c\u5176\u4e2d<strong>\u8bed\u8a00\u6a21\u578b\uff08Langulage Model, LM\uff09\u8d1f\u8d23\u8ba1\u7b97\u8bcd\u5e8f\u5217W={w1,\u2026,wn}&nbsp;\u7684\u6982\u7387\u4f30\u8ba1P(W)<\/strong>\u3002<strong>\u5e76\u4e14\u8bed\u8a00\u6a21\u578b\u5728\u8bc6\u522b\u8fc7\u7a0b\u4e2d\u53ef\u4ee5\u5e2e\u52a9\u5f15\u5bfc\u548c\u9650\u5236\u5907\u9009\u8bcd\u5047\u8bbe\u4e4b\u95f4\u7684\u641c\u7d22\u7ed3\u679c\u3002<\/strong><\/p>\n\n\n\n<p><strong>\u8bed\u8a00\u6a21\u578b\u662f\u901a\u8fc7\u5b66\u4e60\u5927\u91cf\u6587\u672c\u6570\u636e\u6765\u9884\u6d4b\u6216\u751f\u6210\u8bed\u8a00\u5185\u5bb9\u7684\u6a21\u578b\u3002\u8bed\u8a00\u6a21\u578b\u7684\u6838\u5fc3\u76ee\u6807\u662f\u5b66\u4e60\u8bcd\u8bed\u6216\u5b57\u7b26\u5e8f\u5217\u7684\u5206\u5e03\uff0c\u4ee5\u4fbf\u5728\u7ed9\u5b9a\u4e0a\u4e0b\u6587\u7684\u60c5\u51b5\u4e0b\uff0c\u9884\u6d4b\u4e0b\u4e00\u8bcd\uff08\u6216\u5b57\u7b26\uff09\u7684\u53ef\u80fd\u6027\uff0c\u6216\u751f\u6210\u5408\u7406\u7684\u53e5\u5b50\u548c\u6bb5\u843d\u3002\u6839\u636e\u73b0\u6709\u7684\u5de5\u4f5c\uff0c\u8bed\u8a00\u6a21\u578b\u5927\u81f4\u53ef\u4ee5\u5206\u4e3a\u4e24\u5927\u7c7b\uff1a<\/strong><\/p>\n\n\n\n<ul><li><strong>\u57fa\u4e8e\u7edf\u8ba1\u7684\u8bed\u8a00\u6a21\u578b\uff0c\u5982ngram\uff1b<\/strong><\/li><li><strong>\u57fa\u4e8e\u795e\u7ecf\u7f51\u7edc\u7684\u8bed\u8a00\u6a21\u578b\uff0c\u5982rnnlm\uff1b<\/strong><\/li><\/ul>\n\n\n\n<p>\u65e0\u8bba\u54ea\u79cd\u5f62\u6001\u7684\u8bed\u8a00\u6a21\u578b\u6700\u7ec8\u90fd\u662f\u8981\u548c\u58f0\u5b66\u6a21\u578b\u4e00\u8d77\u4f7f\u7528\uff0c\u4f46\u662f\u53ef\u4ee5\u9009\u62e9\u5728\u4e0d\u540c\u7684\u4f4d\u7f6e\u52a0\u5165\u8bed\u8a00\u6a21\u578b\u4ee5\u8fbe\u5230\u4e0d\u540c\u7684\u6548\u679c\uff0c\u4eca\u5929\u672c\u6587\u5c31\u4ecb\u7ecd\u4e0b\u58f0\u5b66\u6a21\u578b\u548c\u8bed\u8a00\u6a21\u578b\u878d\u5408\u51e0\u79cd\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p>\ud83c\udf12&nbsp;<strong>Shallow Fusion\uff08\u6d45\u5c42\u878d\u5408\uff09<\/strong>\u9996\u5148\u5f88\u5bb9\u6613\u60f3\u5230\uff0c<strong>\u58f0\u5b66\u6a21\u578b\u6709\u4e2a\u5f97\u5206\uff0c\u8bed\u8a00\u6a21\u578b\u4e5f\u6709\u4e2a\u5f97\u5206\uff0c\u52a0\u6743\u6c42\u548c\u4e0d\u5c31\u597d\u4e86\uff0c\u8fd9\u5c31\u662f\u6700\u4f20\u7edf\u7684shallow fusion\u65b9\u6cd5\u3002\u58f0\u5b66\u6a21\u578b\u548c\u8bed\u8a00\u6a21\u578b\u5206\u5f00\u8bad\u7ec3\uff0c\u7136\u540e\u5728\u58f0\u5b66\u6a21\u578bbeam-search\u65f6\u505a\u5f97\u5206\u7684\u52a0\u6743\uff0c\u5373<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"56\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-31-1024x56.png\" alt=\"\" class=\"wp-image-21920\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-31-1024x56.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-31-300x16.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-31-768x42.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-31.png 1055w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>\u5176\u4e2d\u03bb\u4e3a\u8bed\u8a00\u6a21\u578b\u7684\u6743\u91cd\uff0c\u5728shallow&nbsp;fusion \u4e2d\uff0c\u58f0\u5b66\u6a21\u578b\u548c\u8bed\u8a00\u6a21\u578b\u5b8c\u5168\u72ec\u7acb\u7684\uff0c\u53ef\u4ee5\u968f\u610f\u5730\u66f4\u6362\u8bed\u8a00\u6a21\u578b\uff0c\u6bd4\u5982\u4ecengram\u5207\u6362\u5230Transformerlm\uff0c\u53ea\u9700\u8981\u91cd\u65b0\u8c03\u6574\u8bed\u8a00\u6a21\u578b\u6743\u91cd\u03bb\u5373\u53ef\u3002<\/strong><\/p>\n\n\n\n<p>\ud83d\udcaf&nbsp;<strong>LM&nbsp;Rescoring<\/strong><\/p>\n\n\n\n<p>\u7531\u4e8eshallow fusion\u662f\u5728token\u7ea7\u522b\u8fdb\u884c\u7684\u878d\u5408\uff0c\u8ba1\u7b97\u91cf\u968f\u7740\u53e5\u5b50\u7684\u957f\u5ea6\u800c\u589e\u52a0\uff0c\u90a3\u4e48\u6709\u6ca1\u6709\u5f00\u9500\u6bd4\u8f83\u5c0f\u7684\u65b9\u6cd5\u5462\uff1f\u7b54\u6848\u662f\u80af\u5b9a\u7684\uff0c<strong>\u53ef\u4ee5\u5728\u6574\u4e2a\u53e5\u5b50\u89e3\u7801\u540e\uff0c\u5bf9\u53e5\u5b50\u7ea7\u522b\u7684n-best\u7ed3\u679c\u4f7f\u7528\u8bed\u8a00\u6a21\u578b\u6253\u5206\uff0c\u7136\u540e\u4e0e\u58f0\u5b66\u6a21\u578b\u5f97\u5206\u52a0\u6743\uff0c\u5373<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"968\" height=\"56\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-32.png\" alt=\"\" class=\"wp-image-21929\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-32.png 968w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-32-300x17.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-32-768x44.png 768w\" sizes=\"(max-width: 968px) 100vw, 968px\" \/><\/figure>\n\n\n\n<p>\u867d\u7136\u76f8\u6bd4shallow fusion\u9010token\u8ba1\u7b97\u8bed\u8a00\u6a21\u578b\u5f97\u5206\uff0crescoring\u65b9\u6cd5\u51cf\u5c11\u4e86\u8ba1\u7b97\u91cf\uff0c\u4f46\u662f\u5176<strong>\u641c\u7d22\u7a7a\u95f4\u51cf\u5c11\u4e3a\u53e5\u5b50\u7ea7\u522b\u7684n-best\uff0c\u56e0\u6b64\u7cbe\u5ea6\u76f8\u5bf9\u4e8eshallow fusion\u6709\u6240\u4e0b\u964d\u3002<\/strong><\/p>\n\n\n\n<p>\ud83c\udfb4<strong>Density Ratio<\/strong><\/p>\n\n\n\n<p>\u76ee\u524d\u7aef\u5230\u7aef\u7684\u65b9\u6848\u5df2\u7ecf\u6210\u4e3a\u4e86\u8bed\u97f3\u8bc6\u522b\u7684\u4e3b\u6d41\uff0c\u7814\u7a76\u8005\u4eec\u666e\u904d\u8ba4\u4e3a\u50cfRNNT\u4e4b\u7c7b\u7684\u6a21\u578b\uff0c\u5728\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\u6a21\u578b\u4e5f\u5b66\u5230\u4e86\u4e00\u4e9b\u8bed\u8a00\u7684\u4fe1\u606f\uff0c\u79f0\u5176\u4e3a\u5185\u90e8\u8bed\u8a00\u6a21\u578b(Internal Language Model, ILM)\u3002\u8fd9\u4e2a<strong>\u5185\u90e8\u8bed\u8a00\u6a21\u578b\u662f\u57fa\u4e8e\u58f0\u5b66\u6a21\u578b\u8bad\u7ec3\u96c6\u5185\u5bb9\u8bad\u7ec3\u7684\uff0c\u5f53\u9047\u5230\u8de8\u57df\u95ee\u9898\u65f6\uff0c\u5185\u90e8\u8bed\u8a00\u6a21\u578b\u548c\u5916\u90e8\u7684\u8bed\u8a00\u6a21\u578b\u5b58\u5728\u51b2\u7a81\uff0c\u5bf9\u6700\u7ec8\u7684\u8bc6\u522b\u7ed3\u679c\u6709\u5f71\u54cd<\/strong>\u3002\u4e00\u4e2a\u53ef\u884c\u7684\u89e3\u51b3\u65b9\u6848\u662f<strong>\u5728\u58f0\u5b66\u6a21\u578b\u7684\u6e90\u57df\u518d\u8bad\u7ec3\u4e00\u4e2a\u8bed\u8a00\u6a21\u578b\uff0c\u7136\u540e\u5728shallow fusion\u540e\u51cf\u53bb\u8fd9\u4e2a\u8bed\u8a00\u6a21\u578b<\/strong>\u3002\u5047\u8bbe\u6e90\u57df\u4e3a\u03c8\uff0c\u76ee\u6807\u57df\u662f\u03c4\uff0c\u90a3\u4e48density ratio\u65b9\u6cd5\u53ef\u4ee5\u901a\u8fc7\u8d1d\u53f6\u65af\u5b9a\u7406\u63a8\u5bfc\u5f97\u5230\u7aef\u5230\u7aef\u6a21\u578b\u7684\u540e\u9a8c\u6982\u7387\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-33.png\" alt=\"\" class=\"wp-image-21935\" width=\"624\" height=\"72\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-33.png 987w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-33-300x35.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-33-768x89.png 768w\" sizes=\"(max-width: 624px) 100vw, 624px\" \/><\/figure>\n\n\n\n<p>\u5728\u63a8\u7406\u8fc7\u7a0b\u4e2d\uff0c\u5185\u90e8\u8bed\u8a00\u6a21\u578b\u7684\u5bf9\u6570\u6982\u7387\u5e94\u8be5<strong>\u7531\u7aef\u5230\u7aef\u6a21\u578b\u548c\u5916\u90e8\u8bed\u8a00\u6a21\u578b\u5206\u6570\u7684\u5bf9\u6570\u7ebf\u6027\u7ec4\u5408\u4e2d\u51cf\u53bb<\/strong>\uff0c\u5373\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"113\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-34-1024x113.png\" alt=\"\" class=\"wp-image-21936\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-34-1024x113.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-34-300x33.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-34-768x85.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-34.png 1087w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u5176\u4e2d\u03b2\u662f\u975eblank\u7684\u5956\u52b1\u3002\u663e\u7136\uff0c<strong>\u8fd9\u79cd\u65b9\u6cd5\u5728\u8de8\u57df\u7684\u573a\u666f\u4e0b\u6bd4shallow fusion\u66f4\u597d\u3002\u6b64\u5916\uff0c\u8fd9\u79cd\u65b9\u6cd5\u548cshallow fusion\u4e00\u6837\uff0c\u53ea\u5728\u89e3\u7801\u65f6\u9700\u8981\u4ecb\u5165\uff0c\u4e0d\u5f71\u54cd\u58f0\u5b66\u6a21\u578b\u7684\u8bad\u7ec3\u8fc7\u7a0b\uff0c\u6700\u540e\u53ea\u9700\u8981\u5fae\u8c03\u4e0b\u4e0d\u540c\u8bed\u8a00\u6a21\u578b\u7684\u6743\u91cd\u5373\u53ef\u3002<\/strong><\/p>\n\n\n\n<p>\u2049\ufe0f&nbsp;<strong>Internal Language Model Estimation<\/strong><\/p>\n\n\n\n<p>density ratio\u65b9\u6cd5\u5047\u8bbe\u6e90\u57df\u7aef\u5230\u7aef\u6a21\u578b\u7684\u540e\u9a8c\u53ef\u4ee5\u5206\u89e3\u4e3a\u5177\u6709\u72ec\u7acb\u53c2\u6570\u7684\u58f0\u5b66\u6a21\u578b\u548c\u8bed\u8a00\u6a21\u578b\uff0c\u7c7b\u4f3c\u4e8e\u6df7\u5408\u7cfb\u7edf\u3002\u7136\u800c\u4e25\u683c\u6765\u8bf4\uff0c\u6839\u636e\u8d1d\u53f6\u65af\u5b9a\u7406\uff0c\u7aef\u5230\u7aef\u6a21\u578b\u7684\u540e\u9a8c\u6982\u7387\u5e94\u8be5\u90fd\u6761\u4ef6\u5206\u5e03\u4e8e\u6a21\u578b\u7684\u53c2\u6570\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"921\" height=\"102\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-35.png\" alt=\"\" class=\"wp-image-21940\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-35.png 921w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-35-300x33.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-35-768x85.png 768w\" sizes=\"(max-width: 921px) 100vw, 921px\" \/><\/figure>\n\n\n\n<p>\u540c\u6837\u7684\uff0c\u5728\u63a8\u7406\u8fc7\u7a0b\u4e2d\uff0c\u5185\u90e8\u8bed\u8a00\u6a21\u578b\u7684\u5bf9\u6570\u6982\u7387\u5e94\u8be5\u7531\u7aef\u5230\u7aef\u6a21\u578b\u548c\u5916\u90e8\u8bed\u8a00\u6a21\u578b\u5206\u6570\u7684\u5bf9\u6570\u7ebf\u6027\u7ec4\u5408\u4e2d\u51cf\u53bb\uff0c\u5373<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"113\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-36-1024x113.png\" alt=\"\" class=\"wp-image-21941\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-36-1024x113.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-36-300x33.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-36-768x85.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-36.png 1093w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u5bf9\u6bd4\u516c\u5f0f\uff084\uff09\u548c\u516c\u5f0f\uff086\uff09\u53ef\u4ee5\u53d1\u73b0\u4e0edensity ratio\u65b9\u6cd5\u4e0d\u540c\u7684\u662f\uff0c\u8fd9\u91cc\u7684\u5185\u90e8\u8bed\u8a00\u6a21\u578b\u548c\u58f0\u5b66\u6a21\u578b\u57fa\u4e8e\u540c\u4e00\u7ec4\u53c2\u6570\u6761\u4ef6\u5316\uff0c\u8fd9\u79cd\u65b9\u6cd5\u79f0\u4e3a\u5185\u90e8\u8bed\u8a00\u6a21\u578b\u4f30\u8ba1\uff08Internal Language Model Estimation, ILME\uff09\u3002\u90a3\u4e48\u5269\u4e0b\u7684\u95ee\u9898\u5c31\u662f\u5982\u4f55\u4f30\u8ba1\u8fd9\u4e2a\u5185\u90e8\u8bed\u8a00\u6a21\u578b\u4e86\u3002<\/p>\n\n\n\n<p>\u5185\u90e8\u8bed\u8a00\u6a21\u578b\u5b9a\u4e49\u4e3a\u7aef\u5230\u7aef\u6a21\u578b\u4ece\u97f3\u9891-\u8f6c\u5f55\u6570\u636e\u5bf9\u4e2d\u9690\u5f0f\u5b66\u4e60\u5230\u7684\u4ee4\u724c\u5e8f\u5217\u6982\u7387\u5206\u5e03\uff0c\u7136\u800c\u76f4\u63a5\u6574\u4e2a\u58f0\u5b66\u7a7a\u95f4\u4e2d\u8ba1\u7b97\u5728\u5b9e\u9645\u4e2d\u662f\u4e0d\u53ef\u884c\u7684\u3002\u8fd9\u91cc\u9700\u8981\u4f7f\u7528\u4e00\u79cd\u79f0\u4f5c\u8054\u5408\u8f6f\u6700\u5927\u8fd1\u4f3c\uff08Joint Softmax Approximation\uff0cJSA\uff09\u7684\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u7528\u4e8e\u901a\u8fc7\u6d88\u9664\u7f16\u7801\u5668\u6fc0\u6d3b\u7684\u5f71\u54cd\u6765\u8fd1\u4f3c\u6df7\u5408\u81ea\u56de\u5f52\u4f20\u8f93\u5668(hybrid autoregressive transducer, HAT)\u6a21\u578b\u7684\u5185\u90e8\u8bed\u8a00\u6a21\u578b\u3002\u7b80\u5355\u6765\u8bf4\uff0c\u5728RNNT\u6a21\u578b\u4e2d\uff0c\u76f4\u63a5\u5c06encoder\u7684\u8f93\u51fa\u7f6e\u96f6\uff0c\u53ea\u8ba9decoder\u7684\u8f93\u51fa\u901a\u8fc7joint network\uff0c\u4fbf\u53ef\u4ee5\u5f97\u5230ILM\u7684\u5206\u6570\uff1b\u5728AED\u6a21\u578b\u4e2d\uff0c\u5c4f\u853d\u6389encoder\u7684encoder\u7684\u8f93\u51fa\uff0c\u89e3\u7801\u5668\u4ec5\u6839\u636e\u6587\u672c\u8f93\u5165\u8ba1\u7b97ILM\u7684\u5206\u6570\u3002<\/p>\n\n\n\n<p>\ud83c\udfb0&nbsp;<strong>Weighted Finite-State Transducers<\/strong>  <strong>\u91cd\u8981\uff01\uff01\uff01<\/strong><\/p>\n\n\n\n<p><strong>WFST\uff08\u52a0\u6743\u6709\u9650\u72b6\u6001\u8f6c\u6362\u5668\uff09\u662f\u4e00\u79cd\u6269\u5c55\u4e86\u6709\u9650\u72b6\u6001\u673a\uff08Finite-State Machine, FSM\uff09\u7684\u6a21\u578b\uff0c\u80fd\u591f\u5904\u7406\u5e26\u6743\u91cd\u7684\u7b26\u53f7\u8f6c\u6362\u95ee\u9898\u3002\u7b80\u5355\u6765\u8bf4\uff0cWFST\u662f\u4e00\u79cd\u5728\u4e24\u4e2a\u7b26\u53f7\u96c6\u4e4b\u95f4\u8fdb\u884c\u6620\u5c04\u7684\u5de5\u5177\uff0c\u5e76\u4e3a\u6bcf\u4e2a\u8f6c\u6362\u8d4b\u4e88\u4e00\u4e2a\u6743\u91cd\u6216\u4ee3\u4ef7\u3002\u5b83\u662f\u4e00\u4e2a\u6709\u5411\u56fe\uff0c\u56fe\u4e2d\u7684\u6bcf\u6761\u8fb9\u8868\u793a\u7b26\u53f7\u7684\u8f6c\u6362\uff0c\u540c\u65f6\u4f34\u968f\u4e00\u4e2a\u6743\u91cd\u3002\u5728\u7aef\u5230\u7aef\u8bed\u97f3\u8bc6\u522b\u4e2d\uff0cT \u662f\u4ee5\u5efa\u6a21\u5355\u5143\u6765\u6784\u56fe\u7684\uff0cIH \u4e3a\u58f0\u5b66\u6a21\u578b\u795e\u7ecf\u7f51\u7edc\u7684\u5efa\u6a21\u5355\u5143\u82f1\u6587\u97f3\u7d20\u3002\u4e0b\u56fe\u5c31\u662f &#8216;is&#8217; \u4e2d \/i\/ \u7684\u53d1\u97f3\u8868\u793a\uff1a<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-37-1024x254.png\" alt=\"\" class=\"wp-image-21944\" width=\"622\" height=\"154\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-37-1024x254.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-37-300x74.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-37-768x190.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-37.png 1271w\" sizes=\"(max-width: 622px) 100vw, 622px\" \/><\/figure>\n\n\n\n<p>L \u662f\u53d1\u97f3\u8bcd\u5178\uff0c\u5305\u542b\u4e86\u5b57\u5230\u8bcd\u7684\u6620\u5c04\uff0c\u4e0b\u56fe\u4e3a&#8217;is&#8217;\u7684\u53d1\u97f3\/iz\/\u7684\u8868\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-38-1024x167.png\" alt=\"\" class=\"wp-image-21945\" width=\"608\" height=\"99\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-38-1024x167.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-38-300x49.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-38-768x125.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-38.png 1233w\" sizes=\"(max-width: 608px) 100vw, 608px\" \/><\/figure>\n\n\n\n<p>G\u662f\u8bed\u8a00\u6a21\u578b\uff0c\u7528\u4e8e\u8bc6\u522bhow are you\uff0chow is it\u7684\u8bed\u8a00\u6a21\u578b\u6784\u56fe\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-39-1024x346.png\" alt=\"\" class=\"wp-image-21946\" width=\"629\" height=\"212\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-39-1024x346.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-39-300x101.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-39-768x260.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2024\/11\/image-39.png 1275w\" sizes=\"(max-width: 629px) 100vw, 629px\" \/><\/figure>\n\n\n\n<p>\u901a\u8fc7TLG\u7684Compose\uff0c\u628a<strong>\u58f0\u5b66\u5efa\u6a21\u5355\u5143\uff0c\u8bcd\u5178\uff0c\u8bed\u8a00\u6a21\u578b\u7cc5\u5408\u5728\u4e00\u8d77\uff0c\u4ea7\u751f\u4e00\u4e2a\u9759\u6001\u7684\u89e3\u7801\u7f51\u7edc\u3002\u5728\u89e3\u7801\u8fc7\u7a0b\u4e2d\u91c7\u7528\u641c\u7d22\u7b56\u7565\uff0c\u5f97\u5230\u8f93\u5165\u8bed\u97f3\u7684\u6700\u4f18\u89e3\u7801\u7ed3\u679c\u3002<\/strong><\/p>\n\n\n\n<p><strong>\u53c2\u8003\u6587\u732e\uff1a<\/strong><\/p>\n\n\n\n<p>[1].&nbsp;https:\/\/zh-v1.d2l.ai\/chapter_recurrent-neural-networks\/lang-model.html<\/p>\n\n\n\n<p>[2].&nbsp;https:\/\/live.ocw.mit.edu\/courses\/6-345-automatic-speech-recognition-spring-2003\/6f59dcd153cc92b4d565ca4b45b2bc83_lecture1112.pdf<\/p>\n\n\n\n<p>[3].&nbsp;https:\/\/k2-fsa.github.io\/icefall\/decoding-with-langugage-models\/index.html<\/p>\n\n\n\n<p>[4].&nbsp;https:\/\/zhuanlan.zhihu.com\/p\/585196572<\/p>\n\n\n\n<p>[5].&nbsp;https:\/\/arxiv.org\/pdf\/2002.11268<\/p>\n\n\n\n<p>[6].&nbsp;https:\/\/arxiv.org\/pdf\/2011.01991<\/p>\n\n\n\n<p>[7].&nbsp;https:\/\/aistudio.baidu.com\/projectdetail\/5001356?channelType=0&amp;channel=0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u8005\uff1aRyuk\u6765\u6e90\uff1a\u8bed\u97f3\u7b97\u6cd5\u7ec4\u94fe\u63a5\uff1ahttps:\/\/mp.weixin.qq.com\/s\/PMKFQvPNLJ &hellip; <a href=\"http:\/\/139.9.1.231\/index.php\/2024\/11\/15\/n-ways-to-fuse-acoustic-models-and-language-models\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u58f0\u5b66\u6a21\u578b\u548c\u8bed\u8a00\u6a21\u578b\u878d\u5408\u7684N\u79cd\u65b9\u5f0f<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,38,34],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/21908"}],"collection":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/comments?post=21908"}],"version-history":[{"count":34,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/21908\/revisions"}],"predecessor-version":[{"id":26420,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/21908\/revisions\/26420"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=21908"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=21908"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=21908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}