Improving Entity Linking by Modeling Latent Relations between Mentions

Phong Le, Ivan Titov


Abstract
Entity linking involves aligning textual mentions of named entities to their corresponding entries in a knowledge base. Entity linking systems often exploit relations between textual mentions in a document (e.g., coreference) to decide if the linking decisions are compatible. Unlike previous approaches, which relied on supervised systems or heuristics to predict these relations, we treat relations as latent variables in our neural entity-linking model. We induce the relations without any supervision while optimizing the entity-linking system in an end-to-end fashion. Our multi-relational model achieves the best reported scores on the standard benchmark (AIDA-CoNLL) and substantially outperforms its relation-agnostic version. Its training also converges much faster, suggesting that the injected structural bias helps to explain regularities in the training data.
Anthology ID:
P18-1148
Volume:
Proceedings of the 56th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
July
Year:
2018
Address:
Melbourne, Australia
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1595–1604
Language:
URL:
https://aclanthology.org/P18-1148
DOI:
10.18653/v1/P18-1148
Bibkey:
Copy Citation:
PDF:
https://aclanthology.org/P18-1148.pdf
Poster:
 P18-1148.Poster.pdf
Code
 lephong/mulrel-nel +  additional community code
Data
AIDA CoNLL-YAGO