Label-Driven Denoising Framework for Multi-Label Few-Shot Aspect Category Detection

Fei Zhao, Yuchen Shen, Zhen Wu, Xinyu Dai


Abstract
Multi-Label Few-Shot Aspect Category Detection (FS-ACD) is a new sub-task of aspect-based sentiment analysis, which aims to detect aspect categories accurately with limited training instances. Recently, dominant works use the prototypical network to accomplish this task, and employ the attention mechanism to extract keywords of aspect category from the sentences to produce the prototype for each aspect. However, they still suffer from serious noise problems: (1) due to lack of sufficient supervised data, the previous methods easily catch noisy words irrelevant to the current aspect category, which largely affects the quality of the generated prototype; (2) the semantically-close aspect categories usually generate similar prototypes, which are mutually noisy and confuse the classifier seriously. In this paper, we resort to the label information of each aspect to tackle the above problems, along with proposing a novel Label-Driven Denoising Framework (LDF). Extensive experimental results show that our framework achieves better performance than other state-of-the-art methods.
Anthology ID:
2022.findings-emnlp.177
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2022
Month:
December
Year:
2022
Address:
Abu Dhabi, United Arab Emirates
Editors:
Yoav Goldberg, Zornitsa Kozareva, Yue Zhang
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
2390–2402
Language:
URL:
https://aclanthology.org/2022.findings-emnlp.177
DOI:
10.18653/v1/2022.findings-emnlp.177
Bibkey:
Cite (ACL):
Fei Zhao, Yuchen Shen, Zhen Wu, and Xinyu Dai. 2022. Label-Driven Denoising Framework for Multi-Label Few-Shot Aspect Category Detection. In Findings of the Association for Computational Linguistics: EMNLP 2022, pages 2390–2402, Abu Dhabi, United Arab Emirates. Association for Computational Linguistics.
Cite (Informal):
Label-Driven Denoising Framework for Multi-Label Few-Shot Aspect Category Detection (Zhao et al., Findings 2022)
Copy Citation:
PDF:
https://aclanthology.org/2022.findings-emnlp.177.pdf