BioFEG: Generate Latent Features for Biomedical Entity Linking - ACL Anthology

BioFEG: Generate Latent Features for Biomedical Entity Linking

Xuhui Sui, Ying Zhang, Xiangrui Cai, Kehui Song, Baohang Zhou, Xiaojie Yuan, Wensheng Zhang


Abstract
Biomedical entity linking is an essential task in biomedical text processing, which aims to map entity mentions in biomedical text, such as clinical notes, to standard terms in a given knowledge base. However, this task is challenging due to the rarity of many biomedical entities in real-world scenarios, which often leads to a lack of annotated data for them. Limited by understanding these unseen entities, traditional biomedical entity linking models suffer from multiple types of linking errors. In this paper, we propose a novel latent feature generation framework BioFEG to address these challenges. Specifically, our BioFEG leverages domain knowledge to train a generative adversarial network, which generates latent semantic features of corresponding mentions for unseen entities. Utilizing these features, we fine-tune our entity encoder to capture fine-grained coherence information of unseen entities and better understand them. This allows models to make linking decisions more accurately, particularly for ambiguous mentions involving rare entities. Extensive experiments on the two benchmark datasets demonstrate the superiority of our proposed framework.
Anthology ID:
2023.emnlp-main.710
Volume:
Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing
Month:
December
Year:
2023
Address:
Singapore
Editors:
Houda Bouamor, Juan Pino, Kalika Bali
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
11584–11593
Language:
URL:
https://aclanthology.org/2023.emnlp-main.710
DOI:
10.18653/v1/2023.emnlp-main.710
Bibkey:
Cite (ACL):
Xuhui Sui, Ying Zhang, Xiangrui Cai, Kehui Song, Baohang Zhou, Xiaojie Yuan, and Wensheng Zhang. 2023. BioFEG: Generate Latent Features for Biomedical Entity Linking. In Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing, pages 11584–11593, Singapore. Association for Computational Linguistics.
Cite (Informal):
BioFEG: Generate Latent Features for Biomedical Entity Linking (Sui et al., EMNLP 2023)
Copy Citation:
PDF:
https://aclanthology.org/2023.emnlp-main.710.pdf
Video:
 https://aclanthology.org/2023.emnlp-main.710.mp4