Author

Lu Sun

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Preprint Aug 2026

Emotion Across Speech and Faces: Shared Affective Mechanisms in Multimodal Foundation Models

Modern multimodal foundation models (MFMs) have made rapid progress on tasks requiring integrated perception across speech, vision, and language, including emotion recognition. However, it remains unclear whether they recognize speech and facial emotion through shared affective functional units or modality-specific pat...

Xiutian Zhao, Lu Sun, Björn W. Schuller et al. · 0 citations

Preprint Sep 2026

Robust Cross-Domain Speech-Based Alzheimer's Disease Detection via Iterative Adversarial Self-Training

A novel unsupervised domain adaptation method, Iterative Adversarial Self-Training (IAST), is proposed and results demonstrate that IAST significantly improves the generalization ability and robustness under various cross-domain settings.

Lu Sun, Shreeram Suresh Chandra, Aurosweta Mahapatra et al. · 0 citations

#artificial intelligence Preprint Aug 2026

Cleaner Speech, Weaker Generalization: Revisiting Pitt-Derived Benchmarks for Alzheimer's Disease Detection

The role of speech preprocessing and dataset curation across widely used benchmarks for speech-based AD detection is revisited, suggesting that ``cleaner''speech datasets are not necessarily more reliable for real-world AD detection.

Lu Sun, Shreeram Suresh Chandra, Lin Zhang et al. · 0 citations