Efficient Entity Candidate Generation for Low-Resource Languages

Alberto Garcia-Duran, Akhil Arora, Robert West


Abstract
Candidate generation is a crucial module in entity linking. It also plays a key role in multiple NLP tasks that have been proven to beneficially leverage knowledge bases. Nevertheless, it has often been overlooked in the monolingual English entity linking literature, as naïve approaches obtain very good performance. Unfortunately, the existing approaches for English cannot be successfully transferred to poorly resourced languages. This paper constitutes an in-depth analysis of the candidate generation problem in the context of cross-lingual entity linking with a focus on low-resource languages. Among other contributions, we point out limitations in the evaluation conducted in previous works. We introduce a characterization of queries into types based on their difficulty, which improves the interpretability of the performance of different methods. We also propose a light-weight and simple solution based on the construction of indexes whose design is motivated by more complex transfer learning based neural approaches. A thorough empirical analysis on 9 real-world datasets under 2 evaluation settings shows that our simple solution outperforms the state-of-the-art approach in terms of both quality and efficiency for almost all datasets and query types.
Anthology ID:
2022.lrec-1.690
Volume:
Proceedings of the Thirteenth Language Resources and Evaluation Conference
Month:
June
Year:
2022
Address:
Marseille, France
Editors:
Nicoletta Calzolari, Frédéric Béchet, Philippe Blache, Khalid Choukri, Christopher Cieri, Thierry Declerck, Sara Goggi, Hitoshi Isahara, Bente Maegaard, Joseph Mariani, Hélène Mazo, Jan Odijk, Stelios Piperidis
Venue:
LREC
SIG:
Publisher:
European Language Resources Association
Note:
Pages:
6429–6438
Language:
URL:
https://aclanthology.org/2022.lrec-1.690
DOI:
Bibkey:
Cite (ACL):
Alberto Garcia-Duran, Akhil Arora, and Robert West. 2022. Efficient Entity Candidate Generation for Low-Resource Languages. In Proceedings of the Thirteenth Language Resources and Evaluation Conference, pages 6429–6438, Marseille, France. European Language Resources Association.
Cite (Informal):
Efficient Entity Candidate Generation for Low-Resource Languages (Garcia-Duran et al., LREC 2022)
Copy Citation:
PDF:
https://aclanthology.org/2022.lrec-1.690.pdf
Code
 epfl-dlab/pti-candgen