Supervised Adversarial Contrastive Learning for Emotion Recognition in Conversations

Dou Hu, Yinan Bao, Lingwei Wei, Wei Zhou, Songlin Hu


Abstract
Extracting generalized and robust representations is a major challenge in emotion recognition in conversations (ERC). To address this, we propose a supervised adversarial contrastive learning (SACL) framework for learning class-spread structured representations in a supervised manner. SACL applies contrast-aware adversarial training to generate worst-case samples and uses joint class-spread contrastive learning to extract structured representations. It can effectively utilize label-level feature consistency and retain fine-grained intra-class features. To avoid the negative impact of adversarial perturbations on context-dependent data, we design a contextual adversarial training (CAT) strategy to learn more diverse features from context and enhance the model’s context robustness. Under the framework with CAT, we develop a sequence-based SACL-LSTM to learn label-consistent and context-robust features for ERC. Experiments on three datasets show that SACL-LSTM achieves state-of-the-art performance on ERC. Extended experiments prove the effectiveness of SACL and CAT.
Anthology ID:
2023.acl-long.606
Volume:
Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
July
Year:
2023
Address:
Toronto, Canada
Editors:
Anna Rogers, Jordan Boyd-Graber, Naoaki Okazaki
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
10835–10852
Language:
URL:
https://aclanthology.org/2023.acl-long.606
DOI:
10.18653/v1/2023.acl-long.606
Bibkey:
Cite (ACL):
Dou Hu, Yinan Bao, Lingwei Wei, Wei Zhou, and Songlin Hu. 2023. Supervised Adversarial Contrastive Learning for Emotion Recognition in Conversations. In Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), pages 10835–10852, Toronto, Canada. Association for Computational Linguistics.
Cite (Informal):
Supervised Adversarial Contrastive Learning for Emotion Recognition in Conversations (Hu et al., ACL 2023)
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PDF:
https://aclanthology.org/2023.acl-long.606.pdf
Video:
 https://aclanthology.org/2023.acl-long.606.mp4