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Hang Lai

7 accepted papers

2025

LoopSR: Looping Sim-and-Real for Lifelong Policy Adaptation of Legged Robots

IROS 2025

Reinforcement Learning (RL) has shown its remarkable and generalizable capability in legged locomotion through sim-to-real transfer. However, while adaptive methods like domain randomization are expected to enhance policy robustness across diverse environments, they potentially compromise the policy

Cited by 5SourceScholar
2025

World Model-Based Perception for Visual Legged Locomotion

ICRA 2025

Legged locomotion over various terrains is challenging and requires precise perception of the robot and its surroundings from both proprioception and vision. However, learning directly from high-dimensional visual input is often data-inefficient and intricate. To address this issue, traditional meth

Cited by 23SourcecodeScholar
2024

Bridging the Sim-to-Real Gap from the Information Bottleneck Perspective

CoRL 2024poster

Reinforcement Learning (RL) has recently achieved remarkable success in robotic control. However, most works in RL operate in simulated environments where privileged knowledge (e.g., dynamics, surroundings, terrains) is readily available. Conversely, in real-world scenarios, robot agents usually rel…

Cited by 9SourcecodeScholar
2023

Multi-embodiment Legged Robot Control as a Sequence Modeling Problem

ICRA 2023poster

Robots are traditionally bounded by a fixed embodiment during their operational lifetime, which limits their ability to adapt to their surroundings. Co-optimizing control and morphology of a robot, however, is often inefficient due to the complex interplay between the controller and morphology. In t…

Cited by 15SourceScholar
2023

Sim-to-Real Transfer for Quadrupedal Locomotion via Terrain Transformer

ICRA 2023poster

Deep reinforcement learning has recently emerged as an appealing alternative for legged locomotion over multiple terrains by training a policy in physical simulation and then transferring it to the real world (i.e., sim-to-real transfer). Despite considerable progress, the capacity and scalability o…

Cited by 22SourceScholar
2021

On Effective Scheduling of Model-based Reinforcement Learning

NeurIPS 2021poster

Model-based reinforcement learning has attracted wide attention due to its superior sample efficiency. Despite its impressive success so far, it is still unclear how to appropriately schedule the important hyperparameters to achieve adequate performance, such as the real data ratio for policy optimi…