research-article

HEProto: A Hierarchical Enhancing ProtoNet based on Multi-Task Learning for Few-shot Named Entity Recognition

Authors:

Enhong ChenAuthors Info & Claims

CIKM '23: Proceedings of the 32nd ACM International Conference on Information and Knowledge Management

Pages 296 - 305

https://doi.org/10.1145/3583780.3614908

Published: 21 October 2023 Publication History

Abstract

Few-shot Named Entity Recognition (NER) task, which aims to identify and classify entities from different domains with limited training samples, has long been treated as a basic step for knowledge graph (KG) construction. Great efforts have been made on this task with competitive performance, however, they usually treat the two subtasks, namely span detection and type classification, as mutually independent, and the integrity and correlation between subtasks have been largely ignored. Moreover, prior arts may fail to absorb the coarse-grained features of entities, resulting in a semantic-insufficient representation of entity types. To that end, in this paper, we propose a Hierarchical Enhancing ProtoNet (HEProto) based on multi-task learning, which is utilized to jointly learn these two subtasks and model their correlation. Specifically, we adopt contrastive learning to enhance the span boundary information and the type semantic representations in these two subtasks. Then, the hierarchical prototypical network is designed to leverage the coarse-grained information of entities in the type classification stage, which could help the model to better learn the fine-grained semantic representations. Along this line, we construct a similarity margin loss to reduce the similarity between fine-grained entities and other irrelevant coarse-grained prototypes. Finally, extensive experiments on the Few-NERD dataset prove that our solution outperforms competitive baseline methods. The source code of HEProto is available at \hrefhttps://github.com/fanshu6hao/HEProto https://github.com/fanshu6hao/HEProto.

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Digital Library

Cited By

Wang YZhu YXiong WCai C(2024)A few-shot word-structure embedded model for bridge inspection reports learningAdvanced Engineering Informatics10.1016/j.aei.2024.10266462(102664)Online publication date: Oct-2024
https://doi.org/10.1016/j.aei.2024.102664
Xu DChen WPeng WZhang CXu TZhao XWu XZheng YWang YChen E(2024)Large language models for generative information extraction: a surveyFrontiers of Computer Science10.1007/s11704-024-40555-y18:6Online publication date: 11-Nov-2024
https://doi.org/10.1007/s11704-024-40555-y
Hou SQian YChen JZhao JLeng H(2024)MBA-NER: Multi-Granularity Entity Boundary-Aware Contrastive Enhanced for Two-Stage Few-Shot Named Entity RecognitionPattern Recognition and Computer Vision10.1007/978-981-97-8490-5_2(17-30)Online publication date: 7-Nov-2024
https://doi.org/10.1007/978-981-97-8490-5_2

Index Terms

HEProto: A Hierarchical Enhancing ProtoNet based on Multi-Task Learning for Few-shot Named Entity Recognition
1. Computing methodologies
  1. Artificial intelligence
    1. Natural language processing
      1. Information extraction
  2. Machine learning
    1. Learning paradigms
      1. Multi-task learning
        Transfer learning

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cover image ACM Conferences

CIKM '23: Proceedings of the 32nd ACM International Conference on Information and Knowledge Management

October 2023

5508 pages

ISBN:9798400701245

DOI:10.1145/3583780

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University of Wolverhampton, UK
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Published: 21 October 2023

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October 21 - 25, 2023

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Cited By

Wang YZhu YXiong WCai C(2024)A few-shot word-structure embedded model for bridge inspection reports learningAdvanced Engineering Informatics10.1016/j.aei.2024.10266462(102664)Online publication date: Oct-2024
https://doi.org/10.1016/j.aei.2024.102664
Xu DChen WPeng WZhang CXu TZhao XWu XZheng YWang YChen E(2024)Large language models for generative information extraction: a surveyFrontiers of Computer Science10.1007/s11704-024-40555-y18:6Online publication date: 11-Nov-2024
https://doi.org/10.1007/s11704-024-40555-y
Hou SQian YChen JZhao JLeng H(2024)MBA-NER: Multi-Granularity Entity Boundary-Aware Contrastive Enhanced for Two-Stage Few-Shot Named Entity RecognitionPattern Recognition and Computer Vision10.1007/978-981-97-8490-5_2(17-30)Online publication date: 7-Nov-2024
https://doi.org/10.1007/978-981-97-8490-5_2

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