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Author

Bi-Chen Wang

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#small language model Book Open access Nov 2026

A Long-sequence Hierarchical Multimodal Fusion Framework for Personality-aware Depression Detection

Depression detection in older adults is an important human-aware multimedia problem, where latent mental-health states must be inferred from non-invasive behavioral and individual-difference cues. This task is challenging because depressive symptoms are often subtle, heterogeneous, and reflected across multiple channel...

Bi-Chen Wang, Yu-Fei Hou, Yong-Hui Ji et al. · 0 citations
#natural language process... Preprint Oct 2026

When Support Crosses the Line: Evaluating Ethical Boundaries in LLM-Based Mental Health Support in the Chinese Context

Large language models (LLMs) are increasingly explored for mental health support, yet existing benchmarks primarily focus on supportive capabilities rather than whether models consistently adhere to professional ethical boundaries. This issue is particularly important in multi-turn interactions, where users may introdu...

Bi-Chen Wang, Yu-Feng Jin, Yi-Xin Sun et al. · 0 citations

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