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      <description>AI Agent 工程化实践复盘：架构设计、容错与可靠性、上下文工程与成本治理。</description>
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    <title>修 5 坏 2，还是修 3 坏 0？——一次 55 题的多路召回实验，与两个能亲手操作的复盘页</title>
    <link>https://joker1point.github.io/techlog/blog/multi-route-retrieval-experiment</link>
    <description>给检索链路补一条字面路（BM25）去修专名盲区：55 题实测，两条路全程都开能多答对 5 题、但也弄坏 2 题；改成「查询点了名、且语义路确实没找到」才补路，则多答对 3 题、零回退。本文记录四配置对比、λ 的两次扫描（含一个被数据否决的方向）、以及一条必须诚实标注的「不算数的修复」，文末附两个无需后端、离线的交互式复盘页。</description>
    <pubDate>Thu, 01 Oct 2026 00:00:00 GMT</pubDate>
    <author>birenwenmou@qq.com (眠月)</author>
    <category>rag</category><category>retrieval</category><category>hybrid-search</category><category>bm25</category><category>evaluation</category><category>chromadb</category><category>engineering</category><category>vdb-news</category>
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