Conversation Understanding using Relational Temporal Graph Neural Networks with Auxiliary Cross-Modality Interaction

Cam Van Thi Nguyen, Tuan Mai, Son The, Dang Kieu, Duc-Trong Le


Abstract
Emotion recognition is a crucial task for human conversation understanding. It becomes more challenging with the notion of multimodal data, e.g., language, voice, and facial expressions. As a typical solution, the global- and the local context information are exploited to predict the emotional label for every single sentence, i.e., utterance, in the dialogue. Specifically, the global representation could be captured via modeling of cross-modal interactions at the conversation level. The local one is often inferred using the temporal information of speakers or emotional shifts, which neglects vital factors at the utterance level. Additionally, most existing approaches take fused features of multiple modalities in an unified input without leveraging modality-specific representations. Motivating from these problems, we propose the Relational Temporal Graph Neural Network with Auxiliary Cross-Modality Interaction (CORECT), an novel neural network framework that effectively captures conversation-level cross-modality interactions and utterance-level temporal dependencies with the modality-specific manner for conversation understanding. Extensive experiments demonstrate the effectiveness of CORECT via its state-of-the-art results on the IEMOCAP and CMU-MOSEI datasets for the multimodal ERC task.
Anthology ID:
2023.emnlp-main.937
Volume:
Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing
Month:
December
Year:
2023
Address:
Singapore
Editors:
Houda Bouamor, Juan Pino, Kalika Bali
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
15154–15167
Language:
URL:
https://aclanthology.org/2023.emnlp-main.937
DOI:
10.18653/v1/2023.emnlp-main.937
Bibkey:
Cite (ACL):
Cam Van Thi Nguyen, Tuan Mai, Son The, Dang Kieu, and Duc-Trong Le. 2023. Conversation Understanding using Relational Temporal Graph Neural Networks with Auxiliary Cross-Modality Interaction. In Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing, pages 15154–15167, Singapore. Association for Computational Linguistics.
Cite (Informal):
Conversation Understanding using Relational Temporal Graph Neural Networks with Auxiliary Cross-Modality Interaction (Nguyen et al., EMNLP 2023)
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PDF:
https://aclanthology.org/2023.emnlp-main.937.pdf
Video:
 https://aclanthology.org/2023.emnlp-main.937.mp4