Ontology-Driven Structural Regularization for Document-Level Relation Extraction

Laura Menotti, Stefano Marchesin, Gianmaria Silvello


Abstract
Document-Level Relation Extraction (DocRE) relies heavily on costly manually annotated datasets, while large distant supervision resources such as DocRED distant remain underexploited due to noise. We show that a critical yet overlooked source of noise lies in structural inconsistencies within relational triples, including violations of ontology constraints and logical contradictions.

We introduce an ontology-driven framework to quantify and enforce structural consistency in DocRE datasets. Our analysis reveals substantial structural noise in DocRED distant and demonstrates that such inconsistencies propagate to model predictions. Enforcing structural well-formedness during training significantly reduces logical contradictions and consistently improves generalization performance. These findings establish structural consistency as a missing axis of supervision in DocRE and highlight structural regularization as an effective strategy for leveraging distant data at scale.
Anthology ID:
2026.emnlp-main.35
Volume:
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Hung-Yi Lee, Sunipa Dev, Jessy Li, Desmond Elliott
Venue:
EMNLP
SIG:
SIGDAT
Publisher:
Association for Computational Linguistics
Note:
Pages:
756–773
Language:
URL:
https://aclanthology.org/2026.emnlp-main.35/
DOI:
Bibkey:
Cite (ACL):
Laura Menotti, Stefano Marchesin, and Gianmaria Silvello. 2026. Ontology-Driven Structural Regularization for Document-Level Relation Extraction. In Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing, pages 756–773, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
Ontology-Driven Structural Regularization for Document-Level Relation Extraction (Menotti et al., EMNLP 2026)
Copy Citation:
PDF:
https://aclanthology.org/2026.emnlp-main.35.pdf