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Haoran Zhang

3 papers indexed

arxivcs.ROcs.AI2026-07-08

HELP: Human-Efficient Large-Scale Robot Post-Training with Rollout Segmentation

Shaopeng Zhai, Qi Zhang, Tianyi Zhang, Haoran Zhang, Fuxian Huang, Zhanhui Lin, et al.

When adapting Vision Language Action (VLA) models to downstream tasks, multiple rounds of post-training are often required to progressively address policy weaknesses. In this report, we focus on maximizing human efficiency during this iterative process, measured by policy improve…

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arxivcs.LG2026-06-25

Cross-Head Attention Uplift Network with Inverse Propensity Score under Unobserved Confounding

Haoran Zhang, Chuanpu Li, Yuxin Fu, Bin Tong, Guan Wang, Bo Zheng, et al.

Uplift modeling, crucial for estimating individual treatment effects (ITE), faces dual challenges: flexibly leveraging inter-group similarity to enhance discriminative power and debiasing under unobserved confounding scenarios. In this paper, we propose the Cross-Head Attention U…

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