Unsupervised Query Routing for Retrieval Augmented Generation

Fuente: arXiv
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Main Authors: Mu, Feiteng, Zhang, Liwen, Jiang, Yong, Li, Wenjie, Zhang, Zhen, Xie, Pengjun, Huang, Fei
Format: Preprint
Published: 2025
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author Mu, Feiteng
Zhang, Liwen
Jiang, Yong
Li, Wenjie
Zhang, Zhen
Xie, Pengjun
Huang, Fei
author_facet Mu, Feiteng
Zhang, Liwen
Jiang, Yong
Li, Wenjie
Zhang, Zhen
Xie, Pengjun
Huang, Fei
contents Query routing for retrieval-augmented generation aims to assign an input query to the most suitable search engine. Existing works rely heavily on supervised datasets that require extensive manual annotation, resulting in high costs and limited scalability, as well as poor generalization to out-of-distribution scenarios. To address these challenges, we introduce a novel unsupervised method that constructs the "upper-bound" response to evaluate the quality of retrieval-augmented responses. This evaluation enables the decision of the most suitable search engine for a given query. By eliminating manual annotations, our approach can automatically process large-scale real user queries and create training data. We conduct extensive experiments across five datasets, demonstrating that our method significantly enhances scalability and generalization capabilities.
format Preprint
id arxiv_https___arxiv_org_abs_2501_07793
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Unsupervised Query Routing for Retrieval Augmented Generation
Mu, Feiteng
Zhang, Liwen
Jiang, Yong
Li, Wenjie
Zhang, Zhen
Xie, Pengjun
Huang, Fei
Information Retrieval
Query routing for retrieval-augmented generation aims to assign an input query to the most suitable search engine. Existing works rely heavily on supervised datasets that require extensive manual annotation, resulting in high costs and limited scalability, as well as poor generalization to out-of-distribution scenarios. To address these challenges, we introduce a novel unsupervised method that constructs the "upper-bound" response to evaluate the quality of retrieval-augmented responses. This evaluation enables the decision of the most suitable search engine for a given query. By eliminating manual annotations, our approach can automatically process large-scale real user queries and create training data. We conduct extensive experiments across five datasets, demonstrating that our method significantly enhances scalability and generalization capabilities.
title Unsupervised Query Routing for Retrieval Augmented Generation
topic Information Retrieval
url https://arxiv.org/abs/2501.07793