Data-driven Coreference-based Ontology Building

Shir Ashury Tahan, Amir Cohen, Nadav Cohen, Yoram Louzoun, Yoav Goldberg


Abstract
While coreference resolution is traditionally used as a component in individual document understanding, in this work we take a more global view and explore what can we learn about a domain from the set of all document-level coreference relations that are present in a large corpus. We derive coreference chains from a corpus of 30 million biomedical abstracts and construct a graph based on the string phrases within these chains, establishing connections between phrases if they co-occur within the same coreference chain. We then use the graph structure and the betweeness centrality measure to distinguish between edges denoting hierarchy, identity and noise, assign directionality to edges denoting hierarchy, and split nodes (strings) that correspond to multiple distinct concepts. The result is a rich, data-driven ontology over concepts in the biomedical domain, parts of which overlaps significantly with human-authored ontologies. We release the coreference chains and resulting ontology under a creative-commons license.
Anthology ID:
2024.findings-emnlp.834
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2024
Month:
November
Year:
2024
Address:
Miami, Florida, USA
Editors:
Yaser Al-Onaizan, Mohit Bansal, Yun-Nung Chen
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
14290–14300
Language:
URL:
https://aclanthology.org/2024.findings-emnlp.834
DOI:
Bibkey:
Cite (ACL):
Shir Ashury Tahan, Amir Cohen, Nadav Cohen, Yoram Louzoun, and Yoav Goldberg. 2024. Data-driven Coreference-based Ontology Building. In Findings of the Association for Computational Linguistics: EMNLP 2024, pages 14290–14300, Miami, Florida, USA. Association for Computational Linguistics.
Cite (Informal):
Data-driven Coreference-based Ontology Building (Ashury Tahan et al., Findings 2024)
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PDF:
https://aclanthology.org/2024.findings-emnlp.834.pdf