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Xilun Zhang

4 accepted papers

2025

Dynamics as Prompts: In-Context Learning for Sim-to-Real System Identifications

RA-L 2025

Sim-to-real transfer remains a significant challenge in robotics due to the discrepancies between simulated and real-world dynamics. Traditional methods like Domain Randomization often fail to capture fine-grained dynamics, limiting their effectiveness for precise control tasks. In this work, we pro

Cited by 15SourceScholar
2025

Learning Robust Policies via Interpretable Hamilton-Jacobi Reachability-Guided Disturbances

ICRA 2025

Deep Reinforcement Learning (RL) has shown remarkable success in robotics with complex and heterogeneous dynamics. However, its vulnerability to unknown disturbances and adversarial attacks remains a significant challenge. In this paper, we propose a robust policy training framework that integrates

Cited by 1SourceScholar
2023

Continual Vision-based Reinforcement Learning with Group Symmetries

CoRL 2023oral

Continual reinforcement learning aims to sequentially learn a variety of tasks, retaining the ability to perform previously encountered tasks while simultaneously developing new policies for novel tasks. However, current continual RL approaches overlook the fact that certain tasks are identical unde…

Cited by 10SourceScholar
2023

What Went Wrong? Closing the Sim-to-Real Gap via Differentiable Causal Discovery

CoRL 2023poster

Training control policies in simulation is more appealing than on real robots directly, as it allows for exploring diverse states in an efficient manner. Yet, robot simulators inevitably exhibit disparities from the real-world \rebut{dynamics}, yielding inaccuracies that manifest as the dynamical si…

Cited by 33SourceScholar