Joint Learning of Named Entity Recognition and Entity Linking

Pedro Henrique Martins, Zita Marinho, André F. T. Martins


Abstract
Named entity recognition (NER) and entity linking (EL) are two fundamentally related tasks, since in order to perform EL, first the mentions to entities have to be detected. However, most entity linking approaches disregard the mention detection part, assuming that the correct mentions have been previously detected. In this paper, we perform joint learning of NER and EL to leverage their relatedness and obtain a more robust and generalisable system. For that, we introduce a model inspired by the Stack-LSTM approach. We observe that, in fact, doing multi-task learning of NER and EL improves the performance in both tasks when comparing with models trained with individual objectives. Furthermore, we achieve results competitive with the state-of-the-art in both NER and EL.
Anthology ID:
P19-2026
Volume:
Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics: Student Research Workshop
Month:
July
Year:
2019
Address:
Florence, Italy
Editors:
Fernando Alva-Manchego, Eunsol Choi, Daniel Khashabi
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
190–196
Language:
URL:
https://aclanthology.org/P19-2026
DOI:
10.18653/v1/P19-2026
Bibkey:
Cite (ACL):
Pedro Henrique Martins, Zita Marinho, and André F. T. Martins. 2019. Joint Learning of Named Entity Recognition and Entity Linking. In Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics: Student Research Workshop, pages 190–196, Florence, Italy. Association for Computational Linguistics.
Cite (Informal):
Joint Learning of Named Entity Recognition and Entity Linking (Martins et al., ACL 2019)
Copy Citation:
PDF:
https://aclanthology.org/P19-2026.pdf
Data
AIDA CoNLL-YAGOCoNLLCoNLL 2003