Claim Extraction via Subgraph Matching over Modal and Syntactic Dependencies

Benjamin Rozonoyer, David Zajic, Ilana Heintz, Michael Selvaggio


Abstract
We propose the use of modal dependency parses (MDPs) aligned with syntactic dependency parse trees as an avenue for the novel task of claim extraction. MDPs provide a document-level structure that links linguistic expression of events to the conceivers responsible for those expressions. By defining the event-conceiver links as claims and using subgraph pattern matching to exploit the complementarity of these modal links and syntactic claim patterns, we outline a method for aggregating and classifying claims, with the potential for supplying a novel perspective on large natural language data sets. Abstracting away from the task of claim extraction, we prototype an interpretable information extraction (IE) paradigm over sentence- and document-level parse structures, framing inference as subgraph matching and learning as subgraph mining. We make our code open-sourced at https://github.com/BBN-E/nlp-graph-pattern-matching-and-mining.
Anthology ID:
2023.dmr-1.12
Volume:
Proceedings of the Fourth International Workshop on Designing Meaning Representations
Month:
June
Year:
2023
Address:
Nancy, France
Editors:
Julia Bonn, Nianwen Xue
Venues:
DMR | WS
SIG:
SIGSEM
Publisher:
Association for Computational Linguistics
Note:
Pages:
122–135
Language:
URL:
https://aclanthology.org/2023.dmr-1.12
DOI:
Bibkey:
Cite (ACL):
Benjamin Rozonoyer, David Zajic, Ilana Heintz, and Michael Selvaggio. 2023. Claim Extraction via Subgraph Matching over Modal and Syntactic Dependencies. In Proceedings of the Fourth International Workshop on Designing Meaning Representations, pages 122–135, Nancy, France. Association for Computational Linguistics.
Cite (Informal):
Claim Extraction via Subgraph Matching over Modal and Syntactic Dependencies (Rozonoyer et al., DMR-WS 2023)
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PDF:
https://aclanthology.org/2023.dmr-1.12.pdf