Argument-Aware Approach To Event Linking

I-Hung Hsu, Zihan Xue, Nilay Pochhi, Sahil Bansal, Prem Natarajan, Jayanth Srinivasa, Nanyun Peng


Abstract
Event linking connects event mentions in text with relevant nodes in a knowledge base (KB). Prior research in event linking has mainly borrowed methods from entity linking, overlooking the distinct features of events. Compared to the extensively explored entity linking task, events have more complex structures and can be more effectively distinguished by examining their associated arguments. Moreover, the information-rich nature of events leads to the scarcity of event KBs. This emphasizes the need for event linking models to identify and classify event mentions not in the KB as “out-of-KB,” an area that has received limited attention. In this work, we tackle these challenges by introducing an argument-aware approach. First, we improve event linking models by augmenting input text with tagged event argument information, facilitating the recognition of key information about event mentions. Subsequently, to help the model handle “out-of-KB” scenarios, we synthesize out-of-KB training examples from in-KB instances through controlled manipulation of event arguments. Our experiment across two test datasets showed significant enhancements in both in-KB and out-of-KB scenarios, with a notable 22% improvement in out-of-KB evaluations.
Anthology ID:
2024.findings-acl.758
Volume:
Findings of the Association for Computational Linguistics: ACL 2024
Month:
August
Year:
2024
Address:
Bangkok, Thailand
Editors:
Lun-Wei Ku, Andre Martins, Vivek Srikumar
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
12769–12781
Language:
URL:
https://aclanthology.org/2024.findings-acl.758
DOI:
10.18653/v1/2024.findings-acl.758
Bibkey:
Cite (ACL):
I-Hung Hsu, Zihan Xue, Nilay Pochhi, Sahil Bansal, Prem Natarajan, Jayanth Srinivasa, and Nanyun Peng. 2024. Argument-Aware Approach To Event Linking. In Findings of the Association for Computational Linguistics: ACL 2024, pages 12769–12781, Bangkok, Thailand. Association for Computational Linguistics.
Cite (Informal):
Argument-Aware Approach To Event Linking (Hsu et al., Findings 2024)
Copy Citation:
PDF:
https://aclanthology.org/2024.findings-acl.758.pdf