https://answer.freetools.me/tags/%E4%B8%8A%E4%B8%8B%E6%96%87%E9%95%BF%E5%BA%A6/ Recent content in 上下文长度 on Answer Hugo -- 0.152.2 zh-cn Mon, 09 Mar 2026 03:24:12 +0800 https://answer.freetools.me/%E4%B8%BA%E4%BB%80%E4%B9%88%E5%A4%A7%E6%A8%A1%E5%9E%8B%E8%AF%BB%E4%B8%8D%E5%AE%8C%E4%B8%80%E6%9C%AC%E4%B9%A6%E4%BB%8E%E6%B3%A8%E6%84%8F%E5%8A%9B%E6%9C%BA%E5%88%B6%E5%88%B0%E9%95%BF%E4%B8%8A%E4%B8%8B%E6%96%87%E7%AA%81%E5%9B%B4%E7%9A%84%E6%8A%80%E6%9C%AF%E5%85%A8%E6%99%AF/ Mon, 09 Mar 2026 03:24:12 +0800 https://answer.freetools.me/%E4%B8%BA%E4%BB%80%E4%B9%88%E5%A4%A7%E6%A8%A1%E5%9E%8B%E8%AF%BB%E4%B8%8D%E5%AE%8C%E4%B8%80%E6%9C%AC%E4%B9%A6%E4%BB%8E%E6%B3%A8%E6%84%8F%E5%8A%9B%E6%9C%BA%E5%88%B6%E5%88%B0%E9%95%BF%E4%B8%8A%E4%B8%8B%E6%96%87%E7%AA%81%E5%9B%B4%E7%9A%84%E6%8A%80%E6%9C%AF%E5%85%A8%E6%99%AF/ 深入解析大模型上下文长度限制的技术根源，从注意力机制的O(n²)复杂度瓶颈，到位置编码的外推困境，再到PI、NTK、YaRN、LongRoPE等突破方案的技术演进全景。