Hero-Gang Neural Model For Named Entity Recognition
Jinpeng Hu, Yaling Shen, Yang Liu, Xiang Wan, Tsung-Hui Chang
Abstract
Named entity recognition (NER) is a fundamental and important task in NLP, aiming at identifying named entities (NEs) from free text. Recently, since the multi-head attention mechanism applied in the Transformer model can effectively capture longer contextual information, Transformer-based models have become the mainstream methods and have achieved significant performance in this task. Unfortunately, although these models can capture effective global context information, they are still limited in the local feature and position information extraction, which is critical in NER. In this paper, to address this limitation, we propose a novel Hero-Gang Neural structure (HGN), including the Hero and Gang module, to leverage both global and local information to promote NER. Specifically, the Hero module is composed of a Transformer-based encoder to maintain the advantage of the self-attention mechanism, and the Gang module utilizes a multi-window recurrent module to extract local features and position information under the guidance of the Hero module. Afterward, the proposed multi-window attention effectively combines global information and multiple local features for predicting entity labels. Experimental results on several benchmark datasets demonstrate the effectiveness of our proposed model.- Anthology ID:
- 2022.naacl-main.140
- Volume:
- Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies
- Month:
- July
- Year:
- 2022
- Address:
- Seattle, United States
- Venue:
- NAACL
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 1924–1936
- Language:
- URL:
- https://aclanthology.org/2022.naacl-main.140
- DOI:
- 10.18653/v1/2022.naacl-main.140
- Cite (ACL):
- Jinpeng Hu, Yaling Shen, Yang Liu, Xiang Wan, and Tsung-Hui Chang. 2022. Hero-Gang Neural Model For Named Entity Recognition. In Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, pages 1924–1936, Seattle, United States. Association for Computational Linguistics.
- Cite (Informal):
- Hero-Gang Neural Model For Named Entity Recognition (Hu et al., NAACL 2022)
- PDF:
- https://preview.aclanthology.org/ingestion-script-update/2022.naacl-main.140.pdf
- Code
- jinpeng01/hgn
- Data
- BC2GM, BC5CDR, OntoNotes 5.0, WNUT 2016 NER, WNUT 2017