Files
nexus/wiki/concepts/RRF-Reranking.md
2026-04-17 22:17:27 +08:00

20 lines
521 B
Markdown
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
---
title: "RRFReranking"
type: concept
tags: []
sources: [https://github.com/zilliztech/memsearch]
last_updated: 2026-04-17
---
## Definition
RRFReciprocal Rank Fusion倒数排名融合是一种将多路搜索结果合并排序的算法。
## Principle
对不同搜索方法的结果按排名倒数1/(k+rank))加权求和,得到综合排名。
## Use Case
- 合并语义搜索向量嵌入和关键词搜索BM25的结果提升搜索质量
## Aliases
- RRF
- Reciprocal Rank Fusion