QAEVENT: Event Extraction as Question-Answer Pairs Generation

Milind Choudhary, Xinya Du


Abstract
We propose a novel representation of document-level events as question and answer pairs (QAEVENT). Under this paradigm: (1) questions themselves can define argument roles without the need for predefined schemas, which will cover a comprehensive list of event arguments from the document; (2) it allows for more scalable and faster annotations from crowdworkers without linguistic expertise. Based on our new paradigm, we collect a novel and wide-coverage dataset. Our examinations show that annotations with the QA representations produce high-quality data for document-level event extraction, both in terms of human agreement level and high coverage of roles comparing to the pre-defined schema. We present and compare representative approaches for generating event question answer pairs on our benchmark.
Anthology ID:
2024.findings-eacl.126
Volume:
Findings of the Association for Computational Linguistics: EACL 2024
Month:
March
Year:
2024
Address:
St. Julian’s, Malta
Editors:
Yvette Graham, Matthew Purver
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1860–1873
Language:
URL:
https://aclanthology.org/2024.findings-eacl.126
DOI:
Bibkey:
Cite (ACL):
Milind Choudhary and Xinya Du. 2024. QAEVENT: Event Extraction as Question-Answer Pairs Generation. In Findings of the Association for Computational Linguistics: EACL 2024, pages 1860–1873, St. Julian’s, Malta. Association for Computational Linguistics.
Cite (Informal):
QAEVENT: Event Extraction as Question-Answer Pairs Generation (Choudhary & Du, Findings 2024)
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PDF:
https://aclanthology.org/2024.findings-eacl.126.pdf