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手撕YaRN:理解公式到Qwen3代码实现

  • 2026-01-20 18:45:54
手撕YaRN:理解公式到Qwen3代码实现

手撕YaRN：理解公式到Qwen3代码实现

📌 之前在《从 Position Interpolation 到 YaRN：RoPE外推之路》 仔细介绍过 RoPE 外推的常见方法。
🎯 有宝子留言说 YaRN、NTK-by-parts的公式太过抽象，想知道在Qwen-3、DeepSeek-V3等架构中，【YaRN的代码是如何实现的？🔥】今天来解析🔍

📒 详细解析内容 ➡️ 滑图查看！

🎯 持续更新！在平台提供大模型一手、原创、深度解析！
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感谢阅读🌹
【全清华团队🎓 · 代码熊工作室】
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#yarn位置编码 #YaRN #大模型位置编码 #大模型学习入门 #RoPE旋转位置编码 #大模型 #古希腊掌管代码的神 #算法工程师 #大模型面试 #字节跳动
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      139. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/runtime/temp/067d451b9a0c665040f3f1bdd3293d68.php ( 11.98 KB )
      140. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
      1. CONNECT:[ UseTime:0.001262s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
      2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.002037s ]
      3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000790s ]
      4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000697s ]
      5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001688s ]
      6. SELECT * FROM `set` [ RunTime:0.000633s ]
      7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001792s ]
      8. SELECT * FROM `article` WHERE `id` = 465478 LIMIT 1 [ RunTime:0.001085s ]
      9. UPDATE `article` SET `lasttime` = 1770507539 WHERE `id` = 465478 [ RunTime:0.025330s ]
      10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000738s ]
      11. SELECT * FROM `article` WHERE `id` < 465478 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001313s ]
      12. SELECT * FROM `article` WHERE `id` > 465478 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001626s ]
      13. SELECT * FROM `article` WHERE `id` < 465478 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.010981s ]
      14. SELECT * FROM `article` WHERE `id` < 465478 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.049814s ]
      15. SELECT * FROM `article` WHERE `id` < 465478 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.009490s ]
      0.249387s