activity
20242026
collaborators

10 papers

cs.CV2026

From Affect to Complex Behavior: Advancing Multimodal Human-Centered AI at the 10th ABAW Workshop & Competition

Dimitrios Kollias, Panagiotis Tzirakis, Alan Cowen +10

The 10th Affective & Behavior Analysis in-the-Wild (ABAW) Workshop and Competition, held at CVPR 2026, continues to advance research on modelling, analysis, understanding of human…

cs.CV2026

A Closed-Form Solution for Debiasing Vision-Language Models with Utility Guarantees Across Modalities and Tasks

Tangzheng Lian, Guanyu Hu, Yijing Ren +2

While Vision-Language Models (VLMs) have achieved remarkable performance across diverse downstream tasks, recent studies have shown that they can inherit social biases from the tra…

cs.LG2026

Fair Domain Generalization: An Information-Theoretic View

Tangzheng Lian, Guanyu Hu, Dimitrios Kollias +2

Domain generalization (DG) and algorithmic fairness are two critical challenges in machine learning. However, most DG methods focus only on minimizing expected risk in the unseen t…

cs.LG2025

FairMT: Fairness for Heterogeneous Multi-Task Learning

Guanyu Hu, Tangzheng Lian, Na Yan +5

Fairness in machine learning has been extensively studied in single-task settings, while fair multi-task learning (MTL), especially with heterogeneous tasks (classification, detect…

cs.CV2025

CausalAffect: Causal Discovery for Facial Affective Understanding

Guanyu Hu, Tangzheng Lian, Dimitrios Kollias +2

Understanding human affect from facial behavior requires not only accurate recognition but also structured reasoning over the latent dependencies that drive muscle activations and…

cs.CV2025

Grounding Emotion Recognition with Visual Prototypes: VEGA -- Revisiting CLIP in MERC

Guanyu Hu, Dimitrios Kollias, Xinyu Yang

Multimodal Emotion Recognition in Conversations remains a challenging task due to the complex interplay of textual, acoustic and visual signals. While recent models have improved p…