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jhfdsks
- 3 hours ago
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索引算法的进化史 1. 聚类时代的倒排索引 (IVF) 早期的加速手段主要依靠 IVF (Inverted File)。它利用 K-Means 算法将向量空间划分为多个“簇(Cell)”。搜索时,算法先定位到最邻近的几个簇,再在内部进行比对。虽然大幅缩小了搜索范围,但在极端高维或海量数据下,召回率和速度的平衡点难以维持。
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