Abstract
Automatic identification and expansion of ambiguous abbreviations are essential for biomedical natural language processing applications, such as information retrieval and question answering systems. In this paper, we present DEep Contextualized Biomedical Abbreviation Expansion (DECBAE) model. DECBAE automatically collects substantial and relatively clean annotated contexts for 950 ambiguous abbreviations from PubMed abstracts using a simple heuristic. Then it utilizes BioELMo to extract the contextualized features of words, and feed those features to abbreviation-specific bidirectional LSTMs, where the hidden states of the ambiguous abbreviations are used to assign the exact definitions. Our DECBAE model outperforms other baselines by large margins, achieving average accuracy of 0.961 and macro-F1 of 0.917 on the dataset. It also surpasses human performance for expanding a sample abbreviation, and remains robust in imbalanced, low-resources and clinical settings.- Anthology ID:
- W19-5010
- Volume:
- Proceedings of the 18th BioNLP Workshop and Shared Task
- Month:
- August
- Year:
- 2019
- Address:
- Florence, Italy
- Editors:
- Dina Demner-Fushman, Kevin Bretonnel Cohen, Sophia Ananiadou, Junichi Tsujii
- Venue:
- BioNLP
- SIG:
- SIGBIOMED
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 88–96
- Language:
- URL:
- https://aclanthology.org/W19-5010
- DOI:
- 10.18653/v1/W19-5010
- Cite (ACL):
- Qiao Jin, Jinling Liu, and Xinghua Lu. 2019. Deep Contextualized Biomedical Abbreviation Expansion. In Proceedings of the 18th BioNLP Workshop and Shared Task, pages 88–96, Florence, Italy. Association for Computational Linguistics.
- Cite (Informal):
- Deep Contextualized Biomedical Abbreviation Expansion (Jin et al., BioNLP 2019)
- PDF:
- https://preview.aclanthology.org/fix-dup-bibkey/W19-5010.pdf
- Data
- Word Sense Disambiguation: a Unified Evaluation Framework and Empirical Comparison