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        <title>Hierarchical Fusion for Online Multimodal Dialog Act Classification</title>
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    <abstract>We propose a framework for online multimodal dialog act (DA) classification based on raw audio and ASR-generated transcriptions of current and past utterances. Existing multimodal DA classification approaches are limited by ineffective audio modeling and late-stage fusion. We showcase significant improvements in multimodal DA classification by integrating modalities at a more granular level and incorporating recent advancements in large language and audio models for audio feature extraction. We further investigate the effectiveness of self-attention and cross-attention mechanisms in modeling utterances and dialogs for DA classification. We achieve a substantial increase of 3 percentage points in the F1 score relative to current state-of-the-art models on two prominent DA classification datasets, MRDA and EMOTyDA.</abstract>
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%0 Conference Proceedings
%T Hierarchical Fusion for Online Multimodal Dialog Act Classification
%A Miah, Md Messal Monem
%A Pyarelal, Adarsh
%A Huang, Ruihong
%Y Bouamor, Houda
%Y Pino, Juan
%Y Bali, Kalika
%S Findings of the Association for Computational Linguistics: EMNLP 2023
%D 2023
%8 December
%I Association for Computational Linguistics
%C Singapore
%F miah-etal-2023-hierarchical
%X We propose a framework for online multimodal dialog act (DA) classification based on raw audio and ASR-generated transcriptions of current and past utterances. Existing multimodal DA classification approaches are limited by ineffective audio modeling and late-stage fusion. We showcase significant improvements in multimodal DA classification by integrating modalities at a more granular level and incorporating recent advancements in large language and audio models for audio feature extraction. We further investigate the effectiveness of self-attention and cross-attention mechanisms in modeling utterances and dialogs for DA classification. We achieve a substantial increase of 3 percentage points in the F1 score relative to current state-of-the-art models on two prominent DA classification datasets, MRDA and EMOTyDA.
%R 10.18653/v1/2023.findings-emnlp.505
%U https://aclanthology.org/2023.findings-emnlp.505
%U https://doi.org/10.18653/v1/2023.findings-emnlp.505
%P 7532-7545

Markdown (Informal)

[Hierarchical Fusion for Online Multimodal Dialog Act Classification](https://aclanthology.org/2023.findings-emnlp.505) (Miah et al., Findings 2023)

• Hierarchical Fusion for Online Multimodal Dialog Act Classification (Miah et al., Findings 2023)

ACL

• Md Messal Monem Miah, Adarsh Pyarelal, and Ruihong Huang. 2023. Hierarchical Fusion for Online Multimodal Dialog Act Classification. In Findings of the Association for Computational Linguistics: EMNLP 2023, pages 7532–7545, Singapore. Association for Computational Linguistics.