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Pu Hua

6 accepted papers

2026

H$^3$DP: Triply‑Hierarchical Diffusion Policy for Visuomotor Learning

ICLR 2026poster

Visuomotor policy learning has witnessed substantial progress in robotic manipulation, with recent approaches predominantly relying on generative models to model the action distribution. However, these methods often overlook the critical coupling between visual perception and action prediction. In t…

Cited by 0SourcecodeScholar
2025

Stem-OB: Generalizable Visual Imitation Learning with Stem-Like Convergent Observation through Diffusion Inversion

ICLR 2025spotlight

Visual imitation learning methods demonstrate strong performance, yet they lack generalization when faced with visual input perturbations like variations in lighting and textures. This limitation hampers their practical application in real-world settings. To address this, we propose ***Stem-OB*** th…

2024

DrM: Mastering Visual Reinforcement Learning through Dormant Ratio Minimization

ICLR 2024spotlight

Visual reinforcement learning (RL) has shown promise in continuous control tasks. Despite its progress, current algorithms are still unsatisfactory in virtually every aspect of the performance such as sample efficiency, asymptotic performance, and their robustness to the choice of random seeds. In t…

2024

GenSim2: Scaling Robot Data Generation with Multi-modal and Reasoning LLMs

CoRL 2024poster

Robotic simulation today remains challenging to scale up due to the human efforts required to create diverse simulation tasks and scenes. Simulation-trained policies also face scalability issues as many sim-to-real methods focus on a single task. To address these challenges, this work proposes GenSi…

Cited by 11SourceScholar
2023

RL-ViGen: A Reinforcement Learning Benchmark for Visual Generalization

NeurIPS 2023poster

Visual Reinforcement Learning (Visual RL), coupled with high-dimensional observations, has consistently confronted the long-standing challenge of out-of-distribution generalization. Despite the focus on algorithms aimed at resolving visual generalization problems, we argue that the devil is in the e…