Multimodal Emotion Recognition Based on Graph Neural Networks

Emotion recognition remains a challenging task in human–computer interaction. With advancements in multimodal computing, multimodal emotion recognition has become increasingly important and significant. To address the existing limitations in multimodal fusion efficiency, emotional–semantic association mining, and long-range context modeling, we propose an innovative graph neural network (GNN)-based framework. Our methodology integrates three key components: (1) a hierarchical sequential fusion (HSF) multimodal integration approach, (2) a sentiment–emotion enhanced joint learning framework, and (3) a context-similarity dual-layer graph architecture (CS-BiGraph). The experimental results demonstrate that our method achieves 69.1% accuracy on the IEMOCAP dataset, establishing a new state-of-the-art performance. For future work, we will explore robust extensions of our framework under real-world scenarios with higher noise levels and investigate the integration of emerging modalities for broader applicability.