arXiv AI By Meisam Jamshidi Seikavandi, Tanya Ignatenko, Fabricio Batista Narcizo, Paolo Burelli, Jesper B\"unsow Boldt, Andrew Burke Dittberner

Pseudo-Label Augmentation for Affect Sensing in Small Collaborative Groups

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The study examines pseudo‑label augmentation for affect sensing in small collaborative groups using the GroupAffect‑4 dataset, which includes wearable physiology, eye tracking, personality traits, and post‑task valence, arousal, and dominance (VAD) labels. Various augmentation strategies—no augmentation, Gaussian Process pseudo‑labelling, personality‑aware trust weighting, and joint personality‑plus‑confidence weighting—were evaluated within a shared target‑construction pipeline. Results show that pseudo‑label augmentation improves performance over a labelled‑only baseline in the known‑team setting, with the joint personality‑plus‑confidence variant achieving the highest dominance score, while personality similarity mainly serves as a same‑team filter rather than a calibrated trust signal.

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