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Zhanxiang Cao

15 accepted papers

2026

Coordinated Humanoid Robot Locomotion with Symmetry Equivariant Reinforcement Learning Policy

AAAI 2026technical

The human nervous system exhibits bilateral symmetry, enabling coordinated and balanced movements. However, existing Deep Reinforcement Learning (DRL) methods for humanoid robots neglect morphological symmetry of the robot, leading to uncoordinated and suboptimal behaviors. Inspired by human motor c

Cited by 0SourcePDFScholar
2026

Disturbance-Aware Adaptive Compensation in Hybrid Force-Position Locomotion Policy for Legged Robots

ICRA 2026poster

Reinforcement Learning (RL)-based methods have significantly improved the locomotion performance of legged robots. However, these motion policies face significant challenges when deployed in the real world. Robots operating in uncertain environments struggle to adapt to payload variations and extern…

2026

GS-Playground: A High-Throughput Photorealistic Simulator for Vision-Informed Robot Learning

RSS 2026poster

Embodied AI research is undergoing a shift toward vision-centric perceptual paradigms. While massively parallel simulators have catalyzed breakthroughs in proprioception-based locomotion, their potential remains largely untapped for vision-centric tasks due to the prohibitive computational overhead …

Cited by 0SourceScholar
2026

HiWET: Hierarchical World-Frame End-Effector Tracking for Long-Horizon Humanoid Loco-Manipulation

RSS 2026poster

Humanoid loco-manipulation requires executing precise manipulation tasks while maintaining dynamic stability amid base motion and impacts. Existing approaches typically formulate commands in body-centric frames, fail to inherently correct cumulative world-frame drift induced by legged locomotion. We…

Cited by 0SourceScholar
2026

Keep On Going: Learning Robust Humanoid Motion Skills via Selective Adversarial Training

AAAI 2026technical

Humanoid robots are expected to operate reliably over long horizons while executing versatile whole-body skills. Yet Reinforcement Learning (RL) motion policies typically lose stability under prolonged operation, sensor/actuator noise, and real world disturbances. In this work, we propose a Selectiv

Cited by 0SourcePDFScholar
2026

Learning Motion Skills with Adaptive Assistive Curriculum Force in Humanoid Robots

ICRA 2026poster

Learning policies for complex humanoid tasks remains both challenging and compelling. Inspired by how infants and athletes rely on external support—such as parental walkers or coach-applied guidance—to acquire skills like walking, dancing, and performing acrobatic flips, we propose A2CF: Adaptive As…

2026

MAKP: Multi-Mode Accurate Kicking Policy for Humanoid Robots

ICRA 2026poster

Humanoid robot soccer players face fundamental challenges in achieving stable motion execution and ball trajectory control, particularly under balance constraints during single-leg support phases. In this paper, we introduce MAKP (Multi-mode Accurate Kicking Policy), a novel motion generation-based …

Cited by 0Scholar
2026

PolyFlow: Safe and Efficient Polytope-Constrained Flow Matching with Constraint Embedding and Projection-free Update

ICML 2026poster

While flow-based generative models have demonstrated strong performance across a wide range of domains, deploying them in safety-critical physical systems remains challenging due to strict constraint requirements. Existing approaches typically enforce safety through post-hoc corrections, which incur…

Cited by 0SourceScholar
2025

Anticipate Before Act: Prediction Based Constrained Reinforcement Learning Framework for Skiing Robot Control

RA-L 2025

Enabling a robot to ski with agility presents an exciting yet complex challenge, primarily due to the intricate dynamics arising from ski-snow interactions. Existing robotic simulators are unable to accurately model the non-rigid, highly dynamic contact between skis and deformable snow surfaces. Hen

Cited by 0SourceScholar
2025

Contrastive Forward Prediction Reinforcement Learning for Adaptive Fault-Tolerant Legged Robots

CoRL 2025poster

In complex environments, adaptive and fault-tolerant capabilities are essential for legged robot locomotion. To address this challenge, this study proposes a reinforcement learning framework that integrates contrastive learning with forward prediction to achieve fault-tolerant locomotion for legged…

Cited by 0SourceScholar
2025

Minimizing Acoustic Noise: Enhancing Quiet Locomotion for Quadruped Robots in Indoor Applications

IROS 2025

Recent advancements in quadruped robot research have significantly improved their ability to traverse complex and unstructured outdoor environments. However, the issue of noise generated during locomotion is generally overlooked, which is critically important in noise-sensitive indoor environments,

Cited by 0SourceScholar
2025

Stochastic Trajectory Optimization for Robotic Skill Acquisition From a Suboptimal Demonstration

RA-L 2025

Learning from Demonstration (LfD) has emerged as a crucial method for robots to acquire new skills. However, when given suboptimal task trajectory demonstrations with shape characteristics reflecting human preferences but subpar dynamic attributes such as slow motion, robots not only need to mimic t

Cited by 0SourcecodeScholar
2025

UniLegs: Universal Multi-Legged Robot Control through Morphology-Agnostic Policy Distillation

IROS 2025

Developing controllers that generalize across diverse robot morphologies remains a significant challenge in legged locomotion. Traditional approaches either create specialized controllers for each morphology or compromise performance for generality. This paper introduces a two-stage teacher-student

Cited by 1SourceScholar
2024

Constrained Dirichlet Distribution Policy: Guarantee Zero Constraint Violation Reinforcement Learning for Continuous Robotic Control

RA-L 2024

Learning-based controllers show promising performances in robotic control tasks. However, they still present potential safety risks due to the difficulty in ensuring satisfaction of complex action constraints. We propose a novel action-constrained reinforcement learning method, which transforms the

Cited by 4SourceScholar
2023

Real is Better than Perfect: Sim-to-Real Robotic System in Secondary School Education

IROS 2023poster

Simulation systems of robots can facilitate the prediction, development, and debugging of robotic systems. However, they seldom applied in robotics education for primary and secondary school students. In this paper, we present a sim-to-real robotic system that enables students to optimize their algo…

Cited by 0SourceScholar