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Task-aware Retrieval with Instructions

Akari Asai, Timo Schick, Patrick Lewis, Xilun Chen, Gautier Izacard, Sebastian Riedel, Hannaneh Hajishirzi, Wen-tau Yih


Abstract
We study the problem of retrieval with instructions, where users provide explicit descriptions of their intent along with their queries to guide a retrieval system. Our solution is a general-purpose task-aware retrieval system, trained using multi-task instruction tuning and can follow human-written instructions to find relevant documents to a given query. We introduce the first large-scale collection of 37 retrieval datasets with instructions, BERRI, and present TART, a single multi-task retrieval system trained on BERRI with instructions that can adapt to a new task without any parameter updates. TART advances the state of the art on two zero-shot retrieval benchmarks, BEIR and LOTTE, outperforming models up to three times larger. We further introduce a new evaluation setup, X2-Retrieval, to better reflect real-world scenarios in which diverse domains and tasks are pooled. TART significantly outperforms competitive baselines in this setup, further highlighting the effectiveness of guiding retrieval with instructions.
Anthology ID:
2023.findings-acl.225
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:
3650–3675
Language:
URL:
https://aclanthology.org/2023.findings-acl.225
DOI:
10.18653/v1/2023.findings-acl.225
Bibkey:
Cite (ACL):
Akari Asai, Timo Schick, Patrick Lewis, Xilun Chen, Gautier Izacard, Sebastian Riedel, Hannaneh Hajishirzi, and Wen-tau Yih. 2023. Task-aware Retrieval with Instructions. In Findings of the Association for Computational Linguistics: ACL 2023, pages 3650–3675, Toronto, Canada. Association for Computational Linguistics.
Cite (Informal):
Task-aware Retrieval with Instructions (Asai et al., Findings 2023)
Copy Citation:
PDF:
https://aclanthology.org/2023.findings-acl.225.pdf
Video:
 https://aclanthology.org/2023.findings-acl.225.mp4