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Towards Consistent Document-level Entity Linking: Joint Models for Entity Linking and Coreference Resolution

Klim Zaporojets, Johannes Deleu, Yiwei Jiang, Thomas Demeester, Chris Develder


Abstract
We consider the task of document-level entity linking (EL), where it is important to make consistent decisions for entity mentions over the full document jointly. We aim to leverage explicit “connections” among mentions within the document itself: we propose to join EL and coreference resolution (coref) in a single structured prediction task over directed trees and use a globally normalized model to solve it. This contrasts with related works where two separate models are trained for each of the tasks and additional logic is required to merge the outputs. Experimental results on two datasets show a boost of up to +5% F1-score on both coref and EL tasks, compared to their standalone counterparts. For a subset of hard cases, with individual mentions lacking the correct EL in their candidate entity list, we obtain a +50% increase in accuracy.
Anthology ID:
2022.acl-short.88
Volume:
Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)
Month:
May
Year:
2022
Address:
Dublin, Ireland
Editors:
Smaranda Muresan, Preslav Nakov, Aline Villavicencio
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
778–784
Language:
URL:
https://aclanthology.org/2022.acl-short.88
DOI:
10.18653/v1/2022.acl-short.88
Bibkey:
Cite (ACL):
Klim Zaporojets, Johannes Deleu, Yiwei Jiang, Thomas Demeester, and Chris Develder. 2022. Towards Consistent Document-level Entity Linking: Joint Models for Entity Linking and Coreference Resolution. In Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers), pages 778–784, Dublin, Ireland. Association for Computational Linguistics.
Cite (Informal):
Towards Consistent Document-level Entity Linking: Joint Models for Entity Linking and Coreference Resolution (Zaporojets et al., ACL 2022)
Copy Citation:
PDF:
https://aclanthology.org/2022.acl-short.88.pdf
Video:
 https://aclanthology.org/2022.acl-short.88.mp4
Code
 klimzaporojets/consistent-el
Data
DWIE