A Knowledge-driven Generative Model for Multi-implication Chinese Medical Procedure Entity Normalization

Jinghui Yan, Yining Wang, Lu Xiang, Yu Zhou, Chengqing Zong


Abstract
Medical entity normalization, which links medical mentions in the text to entities in knowledge bases, is an important research topic in medical natural language processing. In this paper, we focus on Chinese medical procedure entity normalization. However, nonstandard Chinese expressions and combined procedures present challenges in our problem. The existing strategies relying on the discriminative model are poorly to cope with normalizing combined procedure mentions. We propose a sequence generative framework to directly generate all the corresponding medical procedure entities. we adopt two strategies: category-based constraint decoding and category-based model refining to avoid unrealistic results. The method is capable of linking entities when a mention contains multiple procedure concepts and our comprehensive experiments demonstrate that the proposed model can achieve remarkable improvements over existing baselines, particularly significant in the case of multi-implication Chinese medical procedures.
Anthology ID:
2020.emnlp-main.116
Volume:
Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)
Month:
November
Year:
2020
Address:
Online
Editors:
Bonnie Webber, Trevor Cohn, Yulan He, Yang Liu
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1490–1499
Language:
URL:
https://aclanthology.org/2020.emnlp-main.116
DOI:
10.18653/v1/2020.emnlp-main.116
Bibkey:
Cite (ACL):
Jinghui Yan, Yining Wang, Lu Xiang, Yu Zhou, and Chengqing Zong. 2020. A Knowledge-driven Generative Model for Multi-implication Chinese Medical Procedure Entity Normalization. In Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP), pages 1490–1499, Online. Association for Computational Linguistics.
Cite (Informal):
A Knowledge-driven Generative Model for Multi-implication Chinese Medical Procedure Entity Normalization (Yan et al., EMNLP 2020)
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PDF:
https://aclanthology.org/2020.emnlp-main.116.pdf
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