Abstract
Semi-supervised learning is a promising way to reduce the annotation cost for text-classification. Combining with pre-trained language models (PLMs), e.g., BERT, recent semi-supervised learning methods achieved impressive performance. In this work, we further investigate the marriage between semi-supervised learning and a pre-trained language model. Unlike existing approaches that utilize PLMs only for model parameter initialization, we explore the inherent topic matching capability inside PLMs for building a more powerful semi-supervised learning approach. Specifically, we propose a joint semi-supervised learning process that can progressively build a standard K-way classifier and a matching network for the input text and the Class Semantic Representation (CSR). The CSR will be initialized from the given labeled sentences and progressively updated through the training process. By means of extensive experiments, we show that our method can not only bring remarkable improvement to baselines, but also overall be more stable, and achieves state-of-the-art performance in semi-supervised text classification.- Anthology ID:
- 2022.naacl-main.219
- 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
- Editors:
- Marine Carpuat, Marie-Catherine de Marneffe, Ivan Vladimir Meza Ruiz
- Venue:
- NAACL
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 3003–3013
- Language:
- URL:
- https://aclanthology.org/2022.naacl-main.219
- DOI:
- 10.18653/v1/2022.naacl-main.219
- Cite (ACL):
- Haiming Xu, Lingqiao Liu, and Ehsan Abbasnejad. 2022. Progressive Class Semantic Matching for Semi-supervised Text Classification. In Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, pages 3003–3013, Seattle, United States. Association for Computational Linguistics.
- Cite (Informal):
- Progressive Class Semantic Matching for Semi-supervised Text Classification (Xu et al., NAACL 2022)
- PDF:
- https://preview.aclanthology.org/emnlp-22-attachments/2022.naacl-main.219.pdf
- Code
- heimingx/pcm
- Data
- AG News, IMDb Movie Reviews, Yahoo! Answers