MILL: Mutual Verification with Large Language Models for Zero-Shot Query Expansion

arXiv:2310.19056v3 Announce Type: replace-cross
Abstract: Query expansion, pivotal in search engines, enhances the representation of user information needs with additional terms. While existing methods expand queries using retrieved or generated contextual documents, each approach has notable limitations. Retrieval-based methods often fail to accurately capture search intent, particularly with brief or ambiguous queries. Generation-based methods, utilizing large language models (LLMs), generally lack corpus-specific knowledge and entail high fine-tuning costs. To address these gaps, we propose a novel zero-shot query expansion framework …

arxiv cs.ai cs.cl cs.ir expansion language language models large language large language models query type verification zero-shot