{"id":99193,"date":"2026-09-02T02:48:43","date_gmt":"2026-09-01T18:48:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/99193.html"},"modified":"2026-09-02T02:48:43","modified_gmt":"2026-09-01T18:48:43","slug":"%e5%87%a0%e4%bd%95%e6%97%b6%e7%a9%ba%e4%b8%8e%e4%bd%8d%e7%bd%ae%e7%bc%96%e7%a0%81","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/99193.html","title":{"rendered":"\u51e0\u4f55\u65f6\u7a7a\u4e0e\u4f4d\u7f6e\u7f16\u7801"},"content":{"rendered":"

\u51e0\u4f55\u65f6\u7a7a\u4e0e\u4f4d\u7f6e\u7f16\u7801<\/h2>\n

\u5f53\u6211\u4eec\u8c08\u8bba\u5927\u8bed\u8a00\u6a21\u578b\u65f6，\u5f80\u5f80\u53ea\u770b\u5230\u5b83\u751f\u6210\u6587\u672c\u7684\u80fd\u529b，\u5374\u5f88\u5c11\u6ce8\u610f\u5e95\u5c42\u7ed3\u6784\u3002\u5b9e\u9645\u4e0a，\u6bcf\u4e00\u6b21\u5bf9\u8bdd\u3001\u63a8\u7406\u7684\u80cc\u540e，\u90fd\u6709\u4e00\u4e2a\u9ad8\u7ef4\u3001\u7a20\u5bc6\u7684\u5411\u91cf\u7a7a\u95f4\u3002\u8fd9\u5c31\u662f\u5927\u6a21\u578b\u7684\u539f\u751f\u571f\u58e4\u3002<\/p>\n

\u4e00\u3001\u7a20\u5bc6\u5411\u91cf\u7a7a\u95f4：\u8bed\u8a00\u7684\u539f\u751f\u571f\u58e4<\/h3>\n

\u5728\u8fd9\u4e2a\u7a7a\u95f4\u91cc，\u8bcd\u3001\u77ed\u8bed\u3001\u53e5\u5b50\u4e0d\u518d\u662f\u5b57\u7b26\u5e8f\u5217，\u800c\u662f\u88ab\u7f16\u7801\u6210\u4e00\u4e2a\u4e2a\u7a20\u5bc6\u7684\u5b9e\u6570\u5411\u91cf\u3002\u6240\u8c13\u201c\u7a20\u5bc6\u201d，\u662f\u76f8\u5bf9\u4e8e\u65e9\u671f\u72ec\u70ed\u7f16\u7801\u7684\u7a00\u758f\u800c\u8a00\u3002\u7a20\u5bc6\u5411\u91cf\u5c31\u50cf\u9ad8\u7ef4\u7a7a\u95f4\u4e2d\u7684\u70b9，\u5f7c\u6b64\u4e4b\u95f4\u6709\u4e86\u8ddd\u79bb\u548c\u65b9\u5411，\u51e0\u4f55\u7ed3\u6784\u627f\u8f7d\u4e86\u8bed\u4e49\u5173\u7cfb\u3002\u6bd4\u5982\u201c\u56fd\u738b-\u7537\u4eba+\u5973\u4eba\u201d\u4f1a\u843d\u5230\u201c\u5973\u738b\u201d\u9644\u8fd1，\u201c\u5df4\u9ece-\u6cd5\u56fd\u201d\u8fd1\u4f3c\u4e8e\u201c\u4e1c\u4eac-\u65e5\u672c\u201d\u3002\u8bed\u4e49\u4e0d\u518d\u662f\u79bb\u6563\u7b26\u53f7，\u800c\u6210\u4e86\u7a7a\u95f4\u4e2d\u7684\u51e0\u4f55\u89c4\u5f8b\u3002<\/p>\n

\u4f46\u8bed\u4e49\u5e76\u4e0d\u662f\u56fa\u5b9a\u7684\u3002\u5b83\u4f1a\u968f\u4e0a\u4e0b\u6587\u6d41\u52a8\u3001\u6298\u53e0\u3001\u62c9\u4f38\u3002\u4e00\u4e2a\u8bcd\u5728\u4e0d\u540c\u53e5\u5b50\u4e2d\u4f1a\u6cbf\u6d41\u5f62\u6ed1\u52a8，\u4e00\u6bb5\u6587\u672c\u7684\u610f\u4e49\u4e5f\u4e0d\u662f\u7b80\u5355\u53e0\u52a0，\u800c\u662f\u5728\u9ad8\u7ef4\u7a7a\u95f4\u4e2d\u5c55\u5f00\u53c8\u6298\u53e0\u3002\u8fd9\u5c31\u662f\u6211\u4eec\u8981\u6df1\u5165\u63a2\u8ba8\u7684：\u8bed\u4e49\u7684\u51e0\u4f55\u4e0e\u65f6\u7a7a\u7684\u6298\u53e0\u3002<\/p>\n

\u4e8c\u3001\u4f4d\u7f6e：\u88ab\u6ce8\u610f\u529b\u9057\u5fd8\u7684\u7ef4\u5ea6<\/h3>\n

\u8fd9\u91cc\u6709\u4e00\u4e2a\u5173\u952e\u95ee\u9898：Transformer \u7684\u6ce8\u610f\u529b\u673a\u5236\u672c\u8eab\u662f\u4f4d\u7f6e\u65e0\u5173\u7684\u3002\u5982\u679c\u53ea\u628a\u8bcd\u5411\u91cf\u4e22\u8fdb\u53bb，\u5b83\u770b\u5230\u7684\u53ea\u662f\u4e00\u5806\u6ca1\u6709\u987a\u5e8f\u7684\u70b9\u3002\u6bd4\u5982\u201c\u732b\u8ffd\u8001\u9f20\u201d\u548c\u201c\u8001\u9f20\u8ffd\u732b\u201d，\u8bcd\u5411\u91cf\u5b8c\u5168\u76f8\u540c，\u53ea\u662f\u987a\u5e8f\u4e0d\u540c，\u4f46\u5728\u81ea\u6ce8\u610f\u529b\u8ba1\u7b97\u4e2d，\u5982\u679c\u4e0d\u52a0\u4efb\u4f55\u4f4d\u7f6e\u4fe1\u606f，\u5b83\u4eec\u4f1a\u5f97\u5230\u51e0\u4e4e\u76f8\u540c\u7684\u8868\u793a\u3002\u53ef\u8fd9\u4e24\u53e5\u8bdd\u7684\u610f\u601d\u622a\u7136\u76f8\u53cd\u3002\u8fd9\u8bf4\u660e，\u5149\u6709\u8bed\u4e49\u51e0\u4f55\u8fd8\u4e0d\u591f，\u5fc5\u987b\u5f15\u5165\u4f4d\u7f6e\u4fe1\u606f，\u624d\u80fd\u8ba9\u6a21\u578b\u77e5\u9053\u8c01\u5728\u524d\u3001\u8c01\u5728\u540e，\u8c01\u4fee\u9970\u8c01，\u8c01\u4f5c\u7528\u4e8e\u8c01\u3002\u5426\u5219，\u8bed\u8a00\u5c31\u9000\u5316\u6210\u4e86\u65e0\u5e8f\u7684\u8bcd\u888b，\u4e22\u5931\u4e86\u65f6\u5e8f\u548c\u7ed3\u6784\u3002<\/p>\n

\u6b64\u523b\u7684\u8bed\u4e49\u7a7a\u95f4，\u662f\u4e00\u7247\u6ca1\u6709\u66f2\u7387\u7684\u5e73\u539f\u2014\u2014\u6240\u6709\u8bcd\u5411\u91cf\u644a\u5e73\u5728\u9ad8\u7ef4\u6d41\u5f62\u4e0a，\u5f7c\u6b64\u4e4b\u95f4\u53ea\u6709\u8ddd\u79bb，\u6ca1\u6709\u5148\u540e\u3002\u8981\u5728\u5176\u4e2d\u5f15\u5165\u987a\u5e8f，\u5c31\u5fc5\u987b\u5bf9\u8fd9\u7247\u5e73\u539f\u65bd\u52a0\u67d0\u79cd\u6298\u53e0，\u8ba9\u65f6\u95f4\u7ef4\u5ea6\u4ece\u51e0\u4f55\u7ed3\u6784\u4e2d\u751f\u957f\u51fa\u6765\u3002<\/p>\n

\u4e09\u3001\u6b63\u5f26\u4f4d\u7f6e\u7f16\u7801：\u7b2c\u4e00\u6b21\u6298\u53e0<\/h3>\n

\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898，\u300aAttention Is All You Need\u300b\u4e2d\u9996\u6b21\u63d0\u51fa\u4e86\u4e00\u79cd\u5de7\u5999\u7684\u65b9\u6cd5：\u6b63\u5f26\u4f4d\u7f6e\u7f16\u7801（APE）\u3002\u5b83\u4e0d\u518d\u4f9d\u8d56\u8bcd\u5e8f\u672c\u8eab，\u800c\u662f\u4e3a\u6bcf\u4e2a\u4f4d\u7f6e\u751f\u6210\u4e00\u4e2a\u56fa\u5b9a\u7684\u5411\u91cf，\u76f4\u63a5\u52a0\u5230\u8bcd\u5411\u91cf\u4e0a\u3002<\/p>\n

\u8fd9\u4e2a\u4f4d\u7f6e\u5411\u91cf\u7684\u6bcf\u4e2a\u7ef4\u5ea6\u90fd\u7531\u6b63\u5f26\u6216\u4f59\u5f26\u51fd\u6570\u6784\u6210，\u4e14\u4e0d\u540c\u7ef4\u5ea6\u62e5\u6709\u4e0d\u540c\u7684\u9891\u7387\u3002\u4f4e\u7ef4\u5ea6\u53d8\u5316\u5feb（\u9ad8\u9891），\u9ad8\u7ef4\u5ea6\u53d8\u5316\u6162（\u4f4e\u9891），\u5c31\u50cf\u7ed9\u6bcf\u4e2a\u4f4d\u7f6e\u5206\u914d\u4e86\u4e00\u7ec4\u72ec\u7279\u7684\u201c\u6ce2\u7eb9\u201d\u3002\u8fd9\u6837\u4e00\u6765，\u6a21\u578b\u4e0d\u4ec5\u80fd\u533a\u5206\u7edd\u5bf9\u4f4d\u7f6e，\u8fd8\u80fd\u901a\u8fc7\u6ce2\u4e0e\u6ce2\u4e4b\u95f4\u7684\u76f8\u4f4d\u5dee，\u6355\u6349\u5230\u76f8\u5bf9\u4f4d\u7f6e\u5173\u7cfb\u3002\u5b83\u6709\u4e00\u4e2a\u4f18\u96c5\u7684\u6570\u5b66\u6027\u8d28：\u4efb\u610f\u504f\u79fb kk<\/span><\/span>k<\/span><\/span><\/span><\/span><\/span> \u540e\u7684\u4f4d\u7f6e\u7f16\u7801 PE(pos+k)PE(pos+k)<\/span><\/span>P<\/span>E<\/span>(<\/span>p<\/span>os<\/span><\/span>+<\/span><\/span><\/span><\/span>k<\/span>)<\/span><\/span><\/span><\/span><\/span>，\u90fd\u53ef\u4ee5\u8868\u793a\u4e3a PE(pos)PE(pos)<\/span><\/span>P<\/span>E<\/span>(<\/span>p<\/span>os<\/span>)<\/span><\/span><\/span><\/span><\/span> \u7684\u7ebf\u6027\u51fd\u6570\u3002\u8fd9\u610f\u5473\u7740\u6a21\u578b\u7406\u8bba\u4e0a\u53ef\u4ee5\u901a\u8fc7\u5b66\u4e60\u7ebf\u6027\u53d8\u6362，\u4ece\u5f53\u524d\u4f4d\u7f6e\u7f16\u7801\u63a8\u5bfc\u51fa\u90bb\u8fd1\u4f4d\u7f6e\u7684\u7f16\u7801\u3002\u8fd9\u4e00\u6027\u8d28，\u6b63\u662f\u6211\u4eec\u540e\u9762\u8981\u8bb2\u7684\u65cb\u8f6c\u4f4d\u7f6e\u7f16\u7801\u7684\u6570\u5b66\u4f0f\u7b14\u3002<\/p>\n

\u6b63\u5f26\u4f4d\u7f6e\u7f16\u7801\u7684\u516c\u5f0f\u5e76\u4e0d\u590d\u6742\u3002\u5bf9\u4e8e\u4f4d\u7f6e pospos<\/span><\/span>p<\/span>os<\/span><\/span><\/span><\/span><\/span> \u548c\u7ef4\u5ea6\u7d22\u5f15 ii<\/span><\/span>i<\/span><\/span><\/span><\/span><\/span>（\u603b\u7ef4\u5ea6 dmodeld_{model}<\/span><\/span>d<\/span><\/span>m<\/span>o<\/span>d<\/span>e<\/span>l<\/span><\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>），\u7f16\u7801\u5411\u91cf\u7684\u7b2c 2i2i<\/span><\/span>2<\/span>i<\/span><\/span><\/span><\/span><\/span> \u7ef4\u548c\u7b2c 2i+12i+1<\/span><\/span>2<\/span>i<\/span><\/span>+<\/span><\/span><\/span><\/span>1<\/span><\/span><\/span><\/span><\/span> \u7ef4\u5206\u522b\u5b9a\u4e49\u4e3a：<\/p>\n

PE(pos,2i)=sin\u2061(pos100002i\/dmodel)
\nPE(pos, 2i) = \\\\sin\\\\left(\\\\frac{pos}{10000^{2i\/d_{model}}}\\\\right)
\n<\/span><\/span>P<\/span>E<\/span>(<\/span>p<\/span>os<\/span>,<\/span><\/span>2<\/span>i<\/span>)<\/span><\/span>=<\/span><\/span><\/span><\/span>sin<\/span><\/span>(<\/span><\/span><\/span><\/span>1000<\/span>0<\/span><\/span>2<\/span>i<\/span>\/<\/span>d<\/span><\/span>m<\/span>o<\/span>d<\/span>e<\/span>l<\/span><\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>p<\/span>os<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>)<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>
\nPE(pos,2i+1)=cos\u2061(pos100002i\/dmodel)
\nPE(pos, 2i+1) = \\\\cos\\\\left(\\\\frac{pos}{10000^{2i\/d_{model}}}\\\\right)
\n<\/span><\/span>P<\/span>E<\/span>(<\/span>p<\/span>os<\/span>,<\/span><\/span>2<\/span>i<\/span><\/span>+<\/span><\/span><\/span><\/span>1<\/span>)<\/span><\/span>=<\/span><\/span><\/span><\/span>cos<\/span><\/span>(<\/span><\/span><\/span><\/span>1000<\/span>0<\/span><\/span>2<\/span>i<\/span>\/<\/span>d<\/span><\/span>m<\/span>o<\/span>d<\/span>e<\/span>l<\/span><\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>p<\/span>os<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>)<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n

\u5e95\u6570 10000 \u63a7\u5236\u4e0d\u540c\u7ef4\u5ea6\u7684\u6ce2\u957f：\u4f4e\u7ef4\u5ea6\u53d8\u5316\u5feb，\u9ad8\u7ef4\u5ea6\u53d8\u5316\u6162\u3002\u6b63\u5f26\u548c\u4f59\u5f26\u7684\u5468\u671f\u6027\u8ba9\u4f4d\u7f6e\u95f4\u7684\u7f16\u7801\u5dee\u5448\u73b0\u51fa\u6709\u89c4\u5f8b\u7684\u76f8\u4f4d\u79fb\u52a8，\u4ece\u800c\u9690\u5f0f\u6355\u6349\u76f8\u5bf9\u4f4d\u7f6e\u5173\u7cfb\u3002<\/p>\n

\u5b9e\u73b0\u8d77\u6765\u540c\u6837\u7b80\u5355：<\/p>\n

import<\/span> torch
\nimport<\/span> math<\/p>\n

def<\/span> sinusoidal_position_encoding<\/span>(<\/span>max_len,<\/span> d_model)<\/span>:<\/span>
\n pe =<\/span> torch.<\/span>zeros(<\/span>max_len,<\/span> d_model)<\/span>
\n position =<\/span> torch.<\/span>arange(<\/span>0<\/span>,<\/span> max_len)<\/span>.<\/span>unsqueeze(<\/span>1<\/span>)<\/span>.<\/span>float<\/span>(<\/span>)<\/span>
\n div_term =<\/span> torch.<\/span>exp(<\/span>torch.<\/span>arange(<\/span>0<\/span>,<\/span> d_model,<\/span> 2<\/span>)<\/span>.<\/span>float<\/span>(<\/span>)<\/span> *<\/span> –<\/span>(<\/span>math.<\/span>log(<\/span>10000.0<\/span>)<\/span> \/<\/span> d_model)<\/span>)<\/span>
\n pe[<\/span>:<\/span>,<\/span> 0<\/span>:<\/span>:<\/span>2<\/span>]<\/span> =<\/span> torch.<\/span>sin(<\/span>position *<\/span> div_term)<\/span>
\n pe[<\/span>:<\/span>,<\/span> 1<\/span>:<\/span>:<\/span>2<\/span>]<\/span> =<\/span> torch.<\/span>cos(<\/span>position *<\/span> div_term)<\/span>
\n return<\/span> pe<\/p>\n

\u751f\u6210\u4e00\u4e2a (max_len, d_model) \u7684\u77e9\u9635，\u6bcf\u884c\u5bf9\u5e94\u4e00\u4e2a\u4f4d\u7f6e\u7f16\u7801\u3002\u4f7f\u7528\u65f6\u76f4\u63a5\u52a0\u5230\u8bcd\u5d4c\u5165\u4e0a，\u5c31\u5b8c\u6210\u4e86\u6700\u57fa\u7840\u7684\u65f6\u7a7a\u51e0\u4f55\u6ce8\u5165\u3002<\/p>\n

\u6211\u4eec\u53ef\u4ee5\u628a\u6b63\u5f26\u4f4d\u7f6e\u7f16\u7801\u60f3\u8c61\u6210\u4e00\u5ea7\u5de8\u5927\u7684\u53e4\u6208\u5c14\u949f\u2014\u2014\u5f53\u7136，\u8fd9\u91cc\u7684\u201c\u53e4\u6208\u5c14\u201d\u53ea\u662f\u865a\u6307，\u5f62\u5bb9\u6307\u9488\u6570\u91cf\u4e4b\u591a\u3001\u5468\u671f\u8de8\u5ea6\u4e4b\u5927\u3002\u5728\u8fd9\u5ea7\u949f\u4e0a，\u4e0d\u662f\u53ea\u6709\u65f6\u9488\u3001\u5206\u9488\u3001\u79d2\u9488，\u800c\u662f\u6709\u6210\u767e\u4e0a\u5343\u6839\u5468\u671f\u5404\u4e0d\u76f8\u540c\u7684\u6307\u9488\u2014\u2014\u6709\u7684\u50cf\u79d2\u9488，\u8f6c\u5f97\u98de\u5feb，\u4ee3\u8868\u4f4e\u7ef4\u5ea6\u7684\u7f16\u7801；\u6709\u7684\u50cf\u5206\u9488\u3001\u65f6\u9488，\u8d8a\u6765\u8d8a\u6162；\u8fd8\u6709\u7684\u50cf\u6708\u9488\u3001\u5e74\u9488，\u51e0\u4e4e\u770b\u4e0d\u51fa\u79fb\u52a8，\u4ee3\u8868\u9ad8\u7ef4\u5ea6\u7684\u7f16\u7801\u3002\u4f4e\u7ef4\u5ea6\u7684\u6307\u9488\u7528\u9ad8\u9891\u7684\u6b63\u5f26\u548c\u4f59\u5f26\u5feb\u901f\u6446\u52a8，\u523b\u753b\u51fa\u7ec6\u5bc6\u7684\u5c40\u90e8\u8282\u594f；\u9ad8\u7ef4\u5ea6\u7684\u6307\u9488\u5219\u7f13\u6162\u5730\u63cf\u7ed8\u51fa\u5b8f\u5927\u7684\u5168\u5c40\u5468\u671f\u3002<\/p>\n

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\u9762\u5bf9\u8fd9\u79cd\u957f\u5ea6\u5916\u63a8\u7684\u56f0\u5883，\u4e00\u79cd\u76f4\u89c2\u7684\u89e3\u51b3\u65b9\u6848\u662f\u7ebf\u6027\u5185\u63d2\u4f4d\u7f6e\u7d22\u5f15\u3002\u5177\u4f53\u6765\u8bf4，\u5982\u679c\u6211\u4eec\u8bad\u7ec3\u65f6\u6700\u5927\u957f\u5ea6\u4e3a LL<\/span><\/span>L<\/span><\/span><\/span><\/span><\/span>，\u63a8\u7406\u65f6\u5e0c\u671b\u6269\u5c55\u5230 L\u2032L'<\/span><\/span>L<\/span><\/span>\u2032<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>，\u5c31\u628a\u6240\u6709\u4f4d\u7f6e\u7d22\u5f15\u4e58\u4ee5\u4e00\u4e2a\u7f29\u653e\u56e0\u5b50 L\/L\u2032L\/L'<\/span><\/span>L<\/span>\/<\/span>L<\/span><\/span>\u2032<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002\u8fd9\u6837，\u539f\u672c\u8d85\u51fa\u8bad\u7ec3\u8303\u56f4\u7684\u4f4d\u7f6e\u4f1a\u88ab\u538b\u7f29\u56de\u6a21\u578b\u719f\u6089\u7684\u533a\u95f4\u5185，\u4ece\u800c\u907f\u514d\u65cb\u8f6c\u89d2\u5ea6\u8fdb\u5165\u672a\u8bad\u7ec3\u7684\u533a\u57df\u3002<\/p>\n

\u7136\u800c，\u8fd9\u79cd\u7b80\u5355\u7c97\u66b4\u7684\u505a\u6cd5\u5e76\u975e\u6ca1\u6709\u4ee3\u4ef7\u3002\u7ebf\u6027\u5185\u63d2\u76f8\u5f53\u4e8e\u628a\u6574\u4e2a\u65f6\u7a7a\u6d41\u5f62\u5747\u5300\u538b\u7f29，\u6240\u6709\u9891\u7387\u7684\u6307\u9488\u90fd\u88ab\u540c\u6b65\u653e\u6162\u3002\u539f\u672c\u4ee3\u8868\u4f4e\u7ef4\u5ea6\u7684\u9ad8\u9891\u201c\u79d2\u9488\u201d，\u8f6c\u5f97\u4e0d\u518d\u90a3\u4e48\u5feb，\u76f8\u90bb\u4f4d\u7f6e\u4e4b\u95f4\u7684\u89d2\u5ea6\u5dee\u5f02\u88ab\u62b9\u5e73\u3002\u6a21\u578b\u5bf9\u5c40\u90e8\u987a\u5e8f\u7684\u5206\u8fa8\u80fd\u529b\u56e0\u6b64\u4e0b\u964d，\u5c31\u50cf\u628a\u4e00\u628a\u9ad8\u7cbe\u5ea6\u7684\u5c3a\u5b50\u7f29\u6210\u4e86\u4e00\u534a，\u523b\u5ea6\u4e4b\u95f4\u7684\u8ddd\u79bb\u88ab\u538b\u7f29，\u7ec6\u5fae\u5dee\u522b\u53d8\u5f97\u96be\u4ee5\u8fa8\u8ba4\u3002\u8fd9\u5c31\u662f\u6240\u8c13\u7684\u5206\u8fa8\u7387\u95ee\u9898\u3002<\/p>\n

\u7ebf\u6027\u5185\u63d2\u7684\u672c\u8d28，\u662f\u7528\u727a\u7272\u77ed\u8ddd\u79bb\u7684\u65f6\u7a7a\u5206\u8fa8\u7387，\u6765\u6362\u53d6\u957f\u8ddd\u79bb\u4e0a\u7684\u7a33\u5b9a\u6027\u3002\u5b83\u7f13\u89e3\u4e86\u71b5\u5d29\u584c，\u5374\u8ba9\u8bed\u4e49\u51e0\u4f55\u7684\u5c40\u90e8\u7ed3\u6784\u53d8\u5f97\u6a21\u7cca\u3002\u6298\u53e0\u88ab\u6574\u4f53\u62c9\u5e73\u4e86\u2014\u2014\u6240\u6709\u4f4d\u7f6e\u7684\u66f2\u7387\u90fd\u88ab\u5747\u5300\u644a\u8584，\u5c31\u50cf\u628a\u4e00\u5f20\u63c9\u76b1\u7684\u7eb8\u786c\u751f\u751f\u538b\u5e73，\u867d\u7136\u9762\u79ef\u53d8\u5927\u4e86，\u4f46\u7eb8\u4e0a\u539f\u672c\u7684\u8936\u76b1\u7eb9\u7406\u5168\u90fd\u6d88\u5931\u4e86\u3002\u8fd9\u63d0\u793a\u6211\u4eec：\u4f4d\u7f6e\u7f16\u7801\u7684\u5916\u63a8，\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u5728\u5168\u5c40\u8986\u76d6\u4e0e\u5c40\u90e8\u7cbe\u5ea6\u4e4b\u95f4\u5bfb\u627e\u5e73\u8861\u7684\u51e0\u4f55\u95ee\u9898\u3002<\/p>\n

\u4e03\u3001\u9891\u57df\u4e4b\u4e2d：\u6298\u53e0\u7684\u66f2\u7387<\/h3>\n

\u8981\u7406\u89e3\u7ebf\u6027\u5185\u63d2\u4e3a\u4ec0\u4e48\u4f1a\u5bfc\u81f4\u5206\u8fa8\u7387\u95ee\u9898，\u6211\u4eec\u9700\u8981\u628a\u4f4d\u7f6e\u7f16\u7801\u653e\u5230\u9891\u57df\u4e2d\u53bb\u89c2\u5bdf\u3002\u65e0\u8bba\u662f\u6b63\u5f26\u4f4d\u7f6e\u7f16\u7801\u8fd8\u662f RoPE，\u672c\u8d28\u4e0a\u90fd\u662f\u4e3a\u4e0d\u540c\u7ef4\u5ea6\u5206\u914d\u4e0d\u540c\u9891\u7387\u7684\u6ce2\u52a8\u3002\u4f4e\u7ef4\u5ea6\u5bf9\u5e94\u9ad8\u9891，\u8d1f\u8d23\u6355\u6349\u76f8\u90bb token \u4e4b\u95f4\u7684\u7ec6\u5fae\u53d8\u5316；\u9ad8\u7ef4\u5ea6\u5bf9\u5e94\u4f4e\u9891，\u523b\u753b\u66f4\u5927\u8303\u56f4\u7684\u987a\u5e8f\u7ed3\u6784\u3002\u6574\u4e2a\u4f4d\u7f6e\u7f16\u7801\u5c31\u50cf\u4e00\u5f20\u9891\u8c31\u56fe，\u4ece\u5feb\u5230\u6162\u5206\u5e03\u7740\u4f17\u591a\u9891\u7387\u6210\u5206\u3002<\/p>\n

\u7ebf\u6027\u5185\u63d2\u7684\u505a\u6cd5，\u76f8\u5f53\u4e8e\u5bf9\u8fd9\u5f20\u9891\u8c31\u56fe\u8fdb\u884c\u6574\u4f53\u5747\u5300\u538b\u7f29：\u6240\u6709\u9891\u7387\u6309\u76f8\u540c\u6bd4\u4f8b\u964d\u4f4e\u3002\u9ad8\u9891\u90e8\u5206\u539f\u672c\u7528\u6765\u5206\u8fa8\u76f8\u90bb\u4f4d\u7f6e，\u4e00\u65e6\u88ab\u538b\u7f29，\u76f8\u90bb token \u4e4b\u95f4\u7684\u76f8\u4f4d\u5dee\u6025\u5267\u51cf\u5c0f，\u6a21\u578b\u81ea\u7136\u96be\u4ee5\u533a\u5206\u5c40\u90e8\u987a\u5e8f\u3002\u8fd9\u5c31\u662f\u5206\u8fa8\u7387\u4e0b\u964d\u7684\u9891\u57df\u89e3\u91ca\u3002<\/p>\n

\u66f4\u5173\u952e\u7684\u662f，\u6a21\u578b\u5728\u8bad\u7ec3\u65f6\u53ea\u89c1\u8fc7\u7279\u5b9a\u9891\u7387\u8303\u56f4\u5185\u7684\u4f4d\u7f6e\u53d8\u5316\u6a21\u5f0f\u3002\u5916\u63a8\u65f6，\u9ad8\u9891\u5206\u91cf\u88ab\u8fc7\u5ea6\u538b\u7f29，\u4f1a\u584c\u7f29\u5230\u6a21\u578b\u672a\u66fe\u5b66\u4e60\u7684\u533a\u57df；\u4f4e\u9891\u5206\u91cf\u867d\u76f8\u5bf9\u7a33\u5b9a，\u4f46\u4e5f\u9762\u4e34\u8fb9\u754c\u5916\u63a8\u7684\u4e0d\u786e\u5b9a\u6027\u3002\u71b5\u5d29\u584c\u548c\u5206\u8fa8\u7387\u4e22\u5931，\u5f52\u6839\u7ed3\u5e95\u90fd\u662f\u9891\u57df\u7ed3\u6784\u5931\u8861\u7684\u8868\u73b0\u3002<\/p>\n

\u9891\u57df\u89c6\u89d2\u8ba9\u6211\u4eec\u770b\u6e05\u4e00\u4e2a\u4e8b\u5b9e：\u4f4d\u7f6e\u7f16\u7801\u7684\u5916\u63a8\u5e76\u4e0d\u662f\u4e00\u4e2a\u5747\u5300\u7684\u95ee\u9898\u3002\u4e0d\u540c\u9891\u7387\u9700\u8981\u4e0d\u540c\u7684\u5904\u7406\u7b56\u7565\u2014\u2014\u9ad8\u9891\u9700\u8981\u4fdd\u6301\u8db3\u591f\u7684\u5206\u8fa8\u7387，\u4f4e\u9891\u5219\u9700\u8981\u5e73\u6ed1\u5916\u63a8\u3002\u53ea\u6709\u4ece\u9891\u57df\u91cd\u65b0\u5ba1\u89c6\u8bed\u4e49\u65f6\u7a7a\u7684\u6298\u53e0\u65b9\u5f0f，\u624d\u80fd\u627e\u5230\u66f4\u7cbe\u7ec6\u7684\u6269\u5c55\u65b9\u6cd5\u3002\u6298\u53e0\u7684\u66f2\u7387\u4e0d\u80fd\u5728\u6bcf\u4e00\u5904\u90fd\u76f8\u540c；\u6709\u4e9b\u5730\u65b9\u9700\u8981\u66f4\u7d27\u51d1\u7684\u6298\u75d5，\u6709\u4e9b\u5730\u65b9\u5219\u9700\u8981\u66f4\u8212\u5c55\u7684\u5f27\u9762\u3002<\/p>\n

\u516b\u3001YaRN：\u5206\u9891\u800c\u6cbb\u7684\u667a\u6167<\/h3>\n

\u6b63\u662f\u5728\u8fd9\u4e2a\u9891\u57df\u601d\u8def\u4e0a，YaRN \u63d0\u51fa\u4e86\u66f4\u7cbe\u7ec6\u7684\u89e3\u51b3\u7b56\u7565\u3002\u5b83\u7684\u5168\u79f0\u662f\u201cYet another RoPE extensioN method\u201d，\u6838\u5fc3\u601d\u60f3\u4e0d\u518d\u5bf9\u6240\u6709\u7ef4\u5ea6\u4e00\u89c6\u540c\u4ec1，\u800c\u662f\u6839\u636e\u9891\u7387\u9ad8\u4f4e\u5206\u7ec4\u5904\u7406\u3002<\/p>\n

\u5177\u4f53\u6765\u8bf4，YaRN \u628a RoPE \u4e2d\u7684\u65cb\u8f6c\u7ef4\u5ea6\u6309\u7167\u9891\u7387\u4ece\u9ad8\u5230\u4f4e\u5212\u5206\u6210\u82e5\u5e72\u6bb5\u3002\u5bf9\u9ad8\u9891\u6bb5，\u5b83\u51e0\u4e4e\u4e0d\u505a\u538b\u7f29，\u8ba9\u76f8\u90bb token \u4e4b\u95f4\u7684\u89d2\u5ea6\u5dee\u4fdd\u6301\u539f\u6709\u7684\u5206\u8fa8\u7387；\u5bf9\u4f4e\u9891\u6bb5，\u5219\u65bd\u52a0\u66f4\u5927\u7684\u7f29\u653e，\u4f7f\u5176\u80fd\u591f\u8986\u76d6\u66f4\u8fdc\u7684\u957f\u5ea6\u8303\u56f4\u3002\u8fd9\u5c31\u50cf\u5728\u4e00\u5ea7\u53e4\u6208\u5c14\u949f\u4e0a，\u53ea\u8c03\u6162\u90a3\u4e9b\u539f\u672c\u5c31\u8f6c\u52a8\u7f13\u6162\u7684\u5e74\u9488\u548c\u6708\u9488，\u800c\u8ba9\u79d2\u9488\u7ee7\u7eed\u6309\u539f\u901f\u98de\u8f6c\u3002\u8fd9\u6837\u65e2\u6269\u5c55\u4e86\u5168\u5c40\u65f6\u95f4\u5c3a\u5ea6，\u53c8\u6ca1\u6709\u727a\u7272\u77ed\u8ddd\u79bb\u7684\u7cbe\u786e\u523b\u5ea6\u3002\u6298\u53e0\u4e0d\u518d\u662f\u6574\u4f53\u644a\u8584，\u800c\u662f\u6709\u9009\u62e9\u5730\u52a0\u6df1\u67d0\u4e9b\u6298\u75d5\u3001\u653e\u677e\u53e6\u4e00\u4e9b\u66f2\u7387\u3002<\/p>\n

\u5728\u5177\u4f53\u5b9e\u73b0\u4e0a，YaRN \u5bf9 RoPE \u7684\u6bcf\u4e2a\u7ef4\u5ea6\u5bf9 (2i,2i+1)(2i, 2i+1)<\/span><\/span>(<\/span>2<\/span>i<\/span>,<\/span><\/span>2<\/span>i<\/span><\/span>+<\/span><\/span><\/span><\/span>1<\/span>)<\/span><\/span><\/span><\/span><\/span> \u5f15\u5165\u4e00\u4e2a\u7f29\u653e\u56e0\u5b50 \u03b3i\\\\gamma_i<\/span><\/span>\u03b3<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>，\u4f7f\u5f97\u65cb\u8f6c\u89d2\u5ea6\u4ece\u539f\u6765\u7684 pos\u22c5\u03b8ipos \\\\cdot \\\\theta_i<\/span><\/span>p<\/span>os<\/span><\/span>\u22c5<\/span><\/span><\/span><\/span>\u03b8<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u53d8\u4e3a pos\u22c5\u03b3i\u22c5\u03b8ipos \\\\cdot \\\\gamma_i \\\\cdot \\\\theta_i<\/span><\/span>p<\/span>os<\/span><\/span>\u22c5<\/span><\/span><\/span><\/span>\u03b3<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u22c5<\/span><\/span><\/span><\/span>\u03b8<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>，\u5176\u4e2d \u03b8i=10000\u22122i\/d\\\\theta_i = 10000^{-2i\/d}<\/span><\/span>\u03b8<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>=<\/span><\/span><\/span><\/span>1000<\/span>0<\/span><\/span>\u2212<\/span>2<\/span>i<\/span>\/<\/span>d<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002<\/p>\n

\u5bf9\u4e8e\u6bcf\u4e2a\u7ef4\u5ea6\u5bf9，\u5148\u8ba1\u7b97\u5176\u5bf9\u5e94\u7684\u6ce2\u957f \u03bbi=2\u03c0\/\u03b8i\\\\lambda_i = 2\\\\pi \/ \\\\theta_i<\/span><\/span>\u03bb<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>=<\/span><\/span><\/span><\/span>2<\/span>\u03c0<\/span>\/<\/span>\u03b8<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u3002\u8bbe\u8bad\u7ec3\u957f\u5ea6\u4e3a LL<\/span><\/span>L<\/span><\/span><\/span><\/span><\/span>，\u671f\u671b\u6269\u5c55\u957f\u5ea6\u4e3a L\u2032=s\u22c5LL' = s \\\\cdot L<\/span><\/span>L<\/span><\/span>\u2032<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>=<\/span><\/span><\/span><\/span>s<\/span><\/span>\u22c5<\/span><\/span><\/span><\/span>L<\/span><\/span><\/span><\/span><\/span>，\u5219 \u03b3i\\\\gamma_i<\/span><\/span>\u03b3<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u6309\u9891\u7387\u9ad8\u4f4e\u5206\u6bb5\u786e\u5b9a：<\/p>\n

\u03b3i={1,\u82e5\u00a0\u03bbi<LL\u03bbi,\u82e5\u00a0\u03bbi>sL(1\u2212r)\u22c5L\u03bbi+r\u22c51,\u82e5\u00a0L\u2264\u03bbi\u2264sL
\n\\\\gamma_i =
\n\\\\begin{cases}
\n1, & \\\\text{\u82e5 } \\\\lambda_i < L \\\\\\\\
\n\\\\frac{L}{\\\\lambda_i}, & \\\\text{\u82e5 } \\\\lambda_i > sL \\\\\\\\
\n(1 – r) \\\\cdot \\\\frac{L}{\\\\lambda_i} + r \\\\cdot 1, & \\\\text{\u82e5 } L \\\\le \\\\lambda_i \\\\le sL
\n\\\\end{cases}
\n<\/span><\/span>\u03b3<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>=<\/span><\/span><\/span><\/span><\/span>\u23a9<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u23a8<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u23a7<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>1<\/span>,<\/span><\/span><\/span><\/span><\/span><\/span>\u03bb<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>L<\/span><\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>,<\/span><\/span><\/span><\/span>(<\/span>1<\/span><\/span>\u2212<\/span><\/span>r<\/span>)<\/span><\/span>\u22c5<\/span><\/span><\/span><\/span>\u03bb<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>L<\/span><\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>+<\/span><\/span>r<\/span><\/span>\u22c5<\/span><\/span>1<\/span>,<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u82e5<\/span>\u00a0<\/span><\/span>\u03bb<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><<\/span><\/span>L<\/span><\/span><\/span><\/span>\u82e5<\/span>\u00a0<\/span><\/span>\u03bb<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>><\/span><\/span>s<\/span>L<\/span><\/span><\/span><\/span>\u82e5<\/span>\u00a0<\/span><\/span>L<\/span><\/span>\u2264<\/span><\/span>\u03bb<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u2264<\/span><\/span>s<\/span>L<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n

\u5176\u4e2d r=\u03bbi\u2212LsL\u2212Lr = \\\\frac{\\\\lambda_i – L}{sL – L}<\/span><\/span>r<\/span><\/span>=<\/span><\/span><\/span><\/span><\/span><\/span>s<\/span>L<\/span>\u2212<\/span>L<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u03bb<\/span><\/span>i<\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u2212<\/span>L<\/span><\/span><\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span> \u662f\u4e00\u4e2a\u7ebf\u6027\u63d2\u503c\u7cfb\u6570，\u7528\u4e8e\u5e73\u6ed1\u8fc7\u6e21\u3002\u8fd9\u91cc\u7ed9\u51fa\u7684\u662f\u6982\u5ff5\u7b80\u5316\u7248：\u539f\u8bba\u6587\u5728\u4e2d\u95f4\u8fc7\u6e21\u6bb5\u4f7f\u7528\u4e86\u4f59\u5f26 ramp \u800c\u975e\u7b80\u5355\u7684\u7ebf\u6027\u63d2\u503c，\u4f46\u6838\u5fc3\u601d\u60f3\u4e00\u81f4\u2014\u2014\u9ad8\u9891\u7ef4\u5ea6（\u6ce2\u957f\u77ed）\u4fdd\u6301\u539f\u6837，\u4f4e\u9891\u7ef4\u5ea6（\u6ce2\u957f\u957f）\u6309\u6bd4\u4f8b\u538b\u7f29，\u4e2d\u95f4\u533a\u57df\u5e73\u6ed1\u8fc7\u6e21\u3002\u8fd9\u6837\u65e2\u4fdd\u4f4f\u4e86\u5c40\u90e8\u5206\u8fa8\u7387，\u53c8\u6269\u5c55\u4e86\u6709\u6548\u8303\u56f4\u3002<\/p>\n

\u6b64\u5916，YaRN \u8fd8\u5f15\u5165\u6e29\u5ea6\u56e0\u5b50 \u03c4\\\\tau<\/span><\/span>\u03c4<\/span><\/span><\/span><\/span><\/span> \u8c03\u6574\u6ce8\u610f\u529b softmax，\u7f13\u89e3\u957f\u5e8f\u5217\u4e0b\u7684\u71b5\u5d29\u584c：<\/p>\n

\u03c4=1+0.1\u22c5ln\u2061(s)
\n\\\\tau = 1 + 0.1 \\\\cdot \\\\ln(s)
\n<\/span><\/span>\u03c4<\/span><\/span>=<\/span><\/span><\/span><\/span>1<\/span><\/span>+<\/span><\/span><\/span><\/span>0.1<\/span><\/span>\u22c5<\/span><\/span><\/span><\/span>ln<\/span>(<\/span>s<\/span>)<\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n

\u63a8\u7406\u65f6\u901a\u5e38\u53d6 \u03c4\\\\tau<\/span><\/span>\u03c4<\/span><\/span><\/span><\/span><\/span> \u7684\u5e73\u65b9\u6839\u4f5c\u4e3a\u6ce8\u610f\u529b\u6e29\u5ea6\u3002\u8fd9\u4e2a\u6e29\u5ea6\u8c03\u8282\u8ba9\u6ce8\u610f\u529b\u5206\u5e03\u5728\u6269\u5c55\u957f\u5ea6\u540e\u4e0d\u81f3\u4e8e\u8fc7\u5ea6\u5c16\u9510\u3002<\/p>\n

\u901a\u8fc7\u8fd9\u79cd\u5206\u9891\u800c\u6cbb\u7684\u65b9\u5f0f，YaRN \u5728\u5206\u8fa8\u7387\u4e0e\u5916\u63a8\u80fd\u529b\u4e4b\u95f4\u627e\u5230\u4e86\u4e00\u79cd\u52a8\u6001\u5e73\u8861，\u4e5f\u6807\u5fd7\u7740\u4f4d\u7f6e\u7f16\u7801\u4ece\u5747\u5300\u51e0\u4f55\u538b\u7f29，\u771f\u6b63\u8d70\u5411\u4e86\u9891\u7387\u611f\u77e5\u7684\u81ea\u9002\u5e94\u6298\u53e0\u3002<\/p>\n

\u4e5d\u3001Llama\u4e0eGemma：\u73b0\u4ee3\u6a21\u578b\u7684\u5b9e\u8df5<\/h3>\n

\u5728\u73b0\u4ee3\u5927\u8bed\u8a00\u6a21\u578b\u7684\u6f14\u8fdb\u4e2d，\u8fd9\u4e00\u601d\u8def\u5f97\u5230\u4e86\u9c9c\u660e\u4f53\u73b0\u3002Llama \u7cfb\u5217\u81ea\u521d\u4ee3\u8d77\u6cbf\u7528\u6807\u51c6 RoPE，\u5e76\u4f7f\u5176\u6210\u4e3a\u5f00\u6e90\u754c\u7684\u9ed8\u8ba4\u914d\u7f6e\u3002\u5230\u4e86 Llama 3，\u4e00\u4e2a\u5173\u952e\u8c03\u6574\u662f\u5c06 RoPE \u7684 base \u4ece 10000 \u63d0\u9ad8\u5230 500000\u3002\u8fd9\u4e00\u6539\u52a8\u76f4\u63a5\u6539\u53d8\u4e86\u9891\u7387\u5206\u5e03：\u4f4e\u9891\u7aef\u663e\u8457\u653e\u6162\u3001\u6ce2\u957f\u62c9\u957f\u4ee5\u8986\u76d6\u66f4\u8fdc\u4f4d\u7f6e，\u800c\u6700\u9ad8\u9891\u7ef4\u5ea6\u51e0\u4e4e\u4e0d\u52a8\u3001\u4fdd\u4f4f\u76f8\u90bb\u5206\u8fa8\u7387\u3002\u8fd9\u6b63\u662f NTK-aware \u601d\u60f3\u7684\u4f53\u73b0，\u4e5f\u4e0e\u524d\u6587 YaRN \u7684\u5206\u9891\u7b56\u7565\u4e00\u8109\u76f8\u627f，\u5728\u4e0d\u663e\u8457\u589e\u52a0\u8bad\u7ec3\u6210\u672c\u7684\u524d\u63d0\u4e0b\u63d0\u5347\u4e86\u957f\u4e0a\u4e0b\u6587\u7684\u7a33\u5b9a\u6027，\u6210\u4e3a\u76ee\u524d\u8bb8\u591a\u5f00\u6e90\u6a21\u578b\u91c7\u7528\u7684\u5927 base \u7b56\u7565\u3002<\/p>\n

Gemma 3 \u5219\u91c7\u7528\u4e86\u66f4\u590d\u6742\u7684\u6df7\u5408\u65b9\u6848：\u5168\u5c40\u6ce8\u610f\u529b\u5c42\u4f7f\u7528\u9ad8\u8fbe 1M \u7684 base，\u5c40\u90e8\u6ce8\u610f\u529b\u5c42\u4fdd\u6301 10000 \u7684 base，\u5e76\u7ed3\u5408\u4ea4\u66ff\u7684\u5c40\u90e8\/\u5168\u5c40\u6ce8\u610f\u529b\u673a\u5236\u3002\u8fd9\u79cd\u8bbe\u8ba1\u5728\u6269\u5c55\u4e0a\u4e0b\u6587\u7684\u540c\u65f6，\u901a\u8fc7\u5c40\u90e8\u5c42\u7ef4\u6301\u4e86\u77ed\u8ddd\u79bb\u5206\u8fa8\u7387\u3002\u800c\u6b64\u524d\u7684 Gemma 2 \u867d\u7136 base \u4fdd\u6301\u9ed8\u8ba4\u7684 10000，\u4f46\u5f15\u5165\u4e86 local\/global \u4ea4\u66ff\u6ce8\u610f\u529b\u548c logit soft-capping \u6765\u7a33\u5b9a\u957f\u5e8f\u5217\u8bad\u7ec3\u3002\u8fd9\u4e9b\u5b9e\u8df5\u8868\u660e，\u4f4d\u7f6e\u7f16\u7801\u5df2\u4e0d\u518d\u662f\u5b64\u7acb\u7684\u6570\u5b66\u63d2\u4ef6，\u800c\u662f\u4e0e\u6a21\u578b\u67b6\u6784\u3001\u8bad\u7ec3\u7b56\u7565\u6df1\u5ea6\u8026\u5408\u7684\u65f6\u7a7a\u6298\u53e0\u7cfb\u7edf\u3002\u6bcf\u4e00\u79cd\u9009\u62e9，\u90fd\u662f\u5728\u5168\u5c40\u8986\u76d6\u4e0e\u5c40\u90e8\u5206\u8fa8\u7387\u4e4b\u95f4\u505a\u51fa\u7684\u5de5\u7a0b\u5316\u6743\u8861\u3002<\/p>\n

\u4ece\u6b63\u5f26\u6ce2\u7eb9\u7684\u7b2c\u4e00\u6b21\u6298\u53e0，\u5230 RoPE \u7684\u52a8\u6001\u65cb\u8f6c，\u518d\u5230 YaRN \u7684\u5206\u9891\u800c\u6cbb，\u6211\u4eec\u770b\u5230\u7684\u662f\u4e00\u6761\u6e05\u6670\u7684\u8109\u7edc：\u4f4d\u7f6e\u7f16\u7801\u7684\u6f14\u8fdb，\u672c\u8d28\u4e0a\u5c31\u662f\u4eba\u7c7b\u5bf9\u8bed\u4e49\u65f6\u7a7a\u4e2d\u6298\u53e0\u65b9\u5f0f\u7684\u7406\u89e3\u4e0d\u65ad\u6df1\u5316\u7684\u8fc7\u7a0b\u3002\u6bcf\u4e00\u6b21\u5916\u63a8\u56f0\u5883，\u90fd\u5728\u903c\u8feb\u6211\u4eec\u91cd\u65b0\u5ba1\u89c6\u90a3\u5f20\u9ad8\u7ef4\u6d41\u5f62\u7684\u66f2\u7387\u5206\u5e03；\u6bcf\u4e00\u79cd\u65b0\u65b9\u6cd5，\u90fd\u662f\u5728\u5bfb\u627e\u66f4\u5408\u7406\u7684\u6298\u75d5\u2014\u2014\u65e2\u4e0d\u8ba9\u77ed\u8ddd\u79bb\u7684\u7cbe\u7ec6\u7ed3\u6784\u88ab\u62b9\u5e73，\u4e5f\u4e0d\u8ba9\u957f\u8ddd\u79bb\u7684\u8fde\u7eed\u6027\u88ab\u6495\u88c2\u3002\u800c\u8fd9，\u6b63\u662f\u5927\u8bed\u8a00\u6a21\u578b\u5e95\u5c42\u4e16\u754c\u4e2d，\u6700\u8ff7\u4eba\u7684\u51e0\u4f55\u5b66\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u51e0\u4f55\u65f6\u7a7a\u4e0e\u4f4d\u7f6e\u7f16\u7801
\n\u5f53\u6211\u4eec\u8c08\u8bba\u5927\u8bed\u8a00\u6a21\u578b\u65f6，\u5f80\u5f80\u53ea\u770b\u5230\u5b83\u751f\u6210\u6587\u672c\u7684\u80fd\u529b，\u5374\u5f88\u5c11\u6ce8\u610f\u5e95\u5c42\u7ed3\u6784\u3002\u5b9e\u9645\u4e0a，\u6bcf\u4e00\u6b21\u5bf9\u8bdd\u3001\u63a8\u7406\u7684\u80cc\u540e，\u90fd\u6709\u4e00\u4e2a\u9ad8\u7ef4\u3001\u7a20\u5bc6\u7684\u5411\u91cf\u7a7a\u95f4\u3002\u8fd9\u5c31\u662f\u5927\u6a21\u578b\u7684\u539f\u751f\u571f\u58e4\u3002
\n\u4e00\u3001\u7a20\u5bc6\u5411\u91cf\u7a7a\u95f4：\u8bed\u8a00\u7684\u539f\u751f\u571f\u58e4
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