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Cheng-Hao Xu

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Preprint Oct 2026

Evidence-Guided Counterfactual Learning for Long-Tailed Robotic Policies

In the practical deployment of vision--language--action policies, handling long-tailed task distributions is a common challenge due to the highly imbalanced composition of robot demonstration datasets. To investigate this issue, we study the head-task action bias in shared robot policies, particularly focusing on its r...

Wei-Wei Chen, Cheng-Hao Xu, Mei-Ling Yu et al. · 0 citations
2025

Smooth and Flexible Camera Movement Synthesis via Temporal Masked Generative Modeling

This paper proposes TemMEGA (Temporal Masked Generative Modeling), a unified framework capable of handling both online and offline camera movement generation, and demonstrates its superiority in both online and offline camera movement synthesis.

Cheng-Hao Xu, Guangtao Lyu, Jiexi Yan et al. · 2 citations

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