WEC: Deriving a Large-scale Cross-document Event Coreference dataset from Wikipedia

Alon Eirew, Arie Cattan, Ido Dagan


Abstract
Cross-document event coreference resolution is a foundational task for NLP applications involving multi-text processing. However, existing corpora for this task are scarce and relatively small, while annotating only modest-size clusters of documents belonging to the same topic. To complement these resources and enhance future research, we present Wikipedia Event Coreference (WEC), an efficient methodology for gathering a large-scale dataset for cross-document event coreference from Wikipedia, where coreference links are not restricted within predefined topics. We apply this methodology to the English Wikipedia and extract our large-scale WEC-Eng dataset. Notably, our dataset creation method is generic and can be applied with relatively little effort to other Wikipedia languages. To set baseline results, we develop an algorithm that adapts components of state-of-the-art models for within-document coreference resolution to the cross-document setting. Our model is suitably efficient and outperforms previously published state-of-the-art results for the task.
Anthology ID:
2021.naacl-main.198
Volume:
Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies
Month:
June
Year:
2021
Address:
Online
Venue:
NAACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
2498–2510
Language:
URL:
https://aclanthology.org/2021.naacl-main.198
DOI:
10.18653/v1/2021.naacl-main.198
Bibkey:
Cite (ACL):
Alon Eirew, Arie Cattan, and Ido Dagan. 2021. WEC: Deriving a Large-scale Cross-document Event Coreference dataset from Wikipedia. In Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, pages 2498–2510, Online. Association for Computational Linguistics.
Cite (Informal):
WEC: Deriving a Large-scale Cross-document Event Coreference dataset from Wikipedia (Eirew et al., NAACL 2021)
Copy Citation:
PDF:
https://aclanthology.org/2021.naacl-main.198.pdf
Video:
 https://aclanthology.org/2021.naacl-main.198.mp4
Code
 AlonEirew/extract-wec +  additional community code
Data
WEC-EngECB+