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Improving Multimodal Named Entity Recognition via Entity Span Detection with Unified Multimodal Transformer

Jianfei Yu, Jing Jiang, Li Yang, Rui Xia


Abstract
In this paper, we study Multimodal Named Entity Recognition (MNER) for social media posts. Existing approaches for MNER mainly suffer from two drawbacks: (1) despite generating word-aware visual representations, their word representations are insensitive to the visual context; (2) most of them ignore the bias brought by the visual context. To tackle the first issue, we propose a multimodal interaction module to obtain both image-aware word representations and word-aware visual representations. To alleviate the visual bias, we further propose to leverage purely text-based entity span detection as an auxiliary module, and design a Unified Multimodal Transformer to guide the final predictions with the entity span predictions. Experiments show that our unified approach achieves the new state-of-the-art performance on two benchmark datasets.
Anthology ID:
2020.acl-main.306
Volume:
Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics
Month:
July
Year:
2020
Address:
Online
Editors:
Dan Jurafsky, Joyce Chai, Natalie Schluter, Joel Tetreault
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
3342–3352
Language:
URL:
https://aclanthology.org/2020.acl-main.306
DOI:
10.18653/v1/2020.acl-main.306
Bibkey:
Cite (ACL):
Jianfei Yu, Jing Jiang, Li Yang, and Rui Xia. 2020. Improving Multimodal Named Entity Recognition via Entity Span Detection with Unified Multimodal Transformer. In Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics, pages 3342–3352, Online. Association for Computational Linguistics.
Cite (Informal):
Improving Multimodal Named Entity Recognition via Entity Span Detection with Unified Multimodal Transformer (Yu et al., ACL 2020)
Copy Citation:
PDF:
https://aclanthology.org/2020.acl-main.306.pdf
Video:
 http://slideslive.com/38929164
Code
 jefferyyu/umt