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Toward Robust Multimodal Sentiment Analysis using multimodal foundational models
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AI
DOI：10.1016/j.eswa.2025.126974.png)
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Abstract
En 中文
Existing multimodal sentiment analysis tasks highly rely on the assumption that the training and test sets are complete multimodal data, while this assumption can be difficult to hold: the multimodal data are often incomplete in real-world scenarios. Therefore, a robust multimodal model in scenarios with randomly missing modalities is highly preferred. Recently, CLIP-based multimodal foundational models have demonstrated impressive performance on numerous multimodal tasks by learning the aligned cross-modal semantics of image and text pairs, but the multimodal foundational models are also unable to directly address scenarios involving modality absence. To alleviate this issue, we propose a simple and effective framework, namely TRML, Toward Robust Multimodal Sentiment Analysis using Multimodal Foundational Models. TRML employs generated virtual modalities to replace missing modalities and aligns the semantic spaces between the generated and missing modalities. Concretely, we design a missing modality inference module to generate virtual modalities and replace missing modalities. We also designed a semantic matching learning module to align semantic spaces generated and missing modalities. Under the prompt of complete modality, our model captures the semantics of missing modalities by leveraging the aligned cross-modal semantic space. Experiments demonstrate the superiority of our approach on three multimodal sentiment analysis benchmark datasets, CMU-MOSI, CMU-MOSEI, and MELD.
Keywords:
Multimodal sentiment analysis
Missing modality
Semantic match
Multimodal foundational models
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