NLPeople at SemEval-2023 Task 2: A Staged Approach for Multilingual Named Entity Recognition

Mohab Elkaref, Nathan Herr, Shinnosuke Tanaka, Geeth De Mel


Abstract
The MultiCoNER II shared task aims at detecting complex, ambiguous named entities with fine-grained types in a low context setting. Previous winning systems incorporated external knowledge bases to retrieve helpful contexts. In our submission we additionally propose splitting the NER task into two stages, a Span Extraction Step, and an Entity Classification step. Our results show that the former does not suffer from the low context setting comparably, and in so leading to a higher overall performance for an external KB-assisted system. We achieve 3rd place on the multilingual track and an average of 6th place overall.
Anthology ID:
2023.semeval-1.159
Volume:
Proceedings of the 17th International Workshop on Semantic Evaluation (SemEval-2023)
Month:
July
Year:
2023
Address:
Toronto, Canada
Editors:
Atul Kr. Ojha, A. Seza Doğruöz, Giovanni Da San Martino, Harish Tayyar Madabushi, Ritesh Kumar, Elisa Sartori
Venue:
SemEval
SIG:
SIGLEX
Publisher:
Association for Computational Linguistics
Note:
Pages:
1148–1153
Language:
URL:
https://aclanthology.org/2023.semeval-1.159
DOI:
10.18653/v1/2023.semeval-1.159
Bibkey:
Cite (ACL):
Mohab Elkaref, Nathan Herr, Shinnosuke Tanaka, and Geeth De Mel. 2023. NLPeople at SemEval-2023 Task 2: A Staged Approach for Multilingual Named Entity Recognition. In Proceedings of the 17th International Workshop on Semantic Evaluation (SemEval-2023), pages 1148–1153, Toronto, Canada. Association for Computational Linguistics.
Cite (Informal):
NLPeople at SemEval-2023 Task 2: A Staged Approach for Multilingual Named Entity Recognition (Elkaref et al., SemEval 2023)
Copy Citation:
PDF:
https://aclanthology.org/2023.semeval-1.159.pdf
Video:
 https://aclanthology.org/2023.semeval-1.159.mp4