ResearchResearch paperInterpretability1 source · Oct 8, 2026

From Sparse Representations to Behavioral Insights for Multimodal Depression Assessment

In this work, we introduce BehavDep, a sparse factor-based framework that decomposes multimodal behavioral representations into sparse latent factors and associates them with behaviorally meaningful concepts through a semantic bridge.

Key points

  • Multimodal depression assessment offers a promising approach to analyzing behavioral patterns associated with depression.
  • However, existing methods often rely on dense and opaque multimodal representations, making it difficult to interpret the behavioral patterns underlying their predictions.
  • To address the mismatch between user-level annotations and heterogeneous video-level behaviors, BehavDep further learns video-level depression tendency scores under weak supervision and aggregates information across multiple observations for user-level assessment.
  • These results show that BehavDep provides a structured and interpretable approach to analyzing multimodal behavioral representations for depression assessment.

Sources (1)

  • [1]From Sparse Representations to Behavioral Insights for Multimodal Depression Assessment
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 8, 12:03 PM
    In this work, we introduce BehavDep, a sparse factor-based framework that decomposes multimodal behavioral representations into sparse latent factors and associates them with behaviorally meaningful concepts through a semantic bridge.
    Multimodal depression assessment offers a promising approach to analyzing behavioral patterns associated with depression.

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