Abstract
In passage retrieval system, the initial passage retrieval results may be unsatisfactory, which can be refined by a reranking scheme. Existing solutions to passage reranking focus on enriching the interaction between query and each passage separately, neglecting the context among the top-ranked passages in the initial retrieval list. To tackle this problem, we propose a Hybrid and Collaborative Passage Reranking (HybRank) method, which leverages the substantial similarity measurements of upstream retrievers for passage collaboration and incorporates the lexical and semantic properties of sparse and dense retrievers for reranking. Besides, built on off-the-shelf retriever features, HybRank is a plug-in reranker capable of enhancing arbitrary passage lists including previously reranked ones. Extensive experiments demonstrate the stable improvements of performance over prevalent retrieval and reranking methods, and verify the effectiveness of the core components of HybRank.- Anthology ID:
- 2023.findings-acl.880
- Volume:
- Findings of the Association for Computational Linguistics: ACL 2023
- Month:
- July
- Year:
- 2023
- Address:
- Toronto, Canada
- Editors:
- Anna Rogers, Jordan Boyd-Graber, Naoaki Okazaki
- Venue:
- Findings
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 14003–14021
- Language:
- URL:
- https://aclanthology.org/2023.findings-acl.880
- DOI:
- 10.18653/v1/2023.findings-acl.880
- Cite (ACL):
- Zongmeng Zhang, Wengang Zhou, Jiaxin Shi, and Houqiang Li. 2023. Hybrid and Collaborative Passage Reranking. In Findings of the Association for Computational Linguistics: ACL 2023, pages 14003–14021, Toronto, Canada. Association for Computational Linguistics.
- Cite (Informal):
- Hybrid and Collaborative Passage Reranking (Zhang et al., Findings 2023)
- PDF:
- https://preview.aclanthology.org/ingest-acl-2023-videos/2023.findings-acl.880.pdf