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Yunchu Zhang

11 accepted papers

2026

Using Non-Expert Data to Robustify Imitation Learning Via Offline Reinforcement Learning

ICRA 2026poster

Imitation learning has proven effective for training robots to perform complex tasks from expert human demonstrations. However, it remains limited by its reliance on high-quality, task-specific data, restricting adaptability to the diverse range of real-world object configurations and scenarios. In …

2025

ATK: Automatic Task-driven Keypoint Selection for Robust Policy Learning

CoRL 2025poster

Learning visuamotor policy through imitation learning often suffers from perceptual challenges, where visual differences between training and evaluation environments degrade policy performance. Policies relying on state estimations like 6D pose, require task-specific tracking and are difficult to sc…

Cited by 0SourceScholar
2025

Steering Your Diffusion Policy with Latent Space Reinforcement Learning

CoRL 2025oral

Robotic control policies learned from human demonstrations have achieved impressive results in many real-world applications. However, in scenarios where initial performance is not satisfactory, as is often the case in novel open-world settings, such behavioral cloning (BC)-learned policies typically…

Cited by 0SourceScholar
2024

CCIL: Continuity-Based Data Augmentation for Corrective Imitation Learning

ICLR 2024poster

We present a new technique to enhance the robustness of imitation learning methods by generating corrective data to account for compounding error and disturbances. While existing methods rely on interactive expert labeling, additional offline datasets, or domain-specific invariances, our approach re…

Cited by 9SourcePDFScholar
2024

DROID: A Large-Scale In-The-Wild Robot Manipulation Dataset

RSS 2024poster

The creation of large, diverse, high-quality robot manipulation datasets is an important stepping stone on the path toward more capable and robust robotic manipulation policies. However, creating such datasets is challenging: collecting robot manipulation data in diverse environments poses logistica…

Cited by 216SourcePDFScholar
2024

Open X-Embodiment: Robotic Learning Datasets and RT-X Models : Open X-Embodiment Collaboration

ICRA 2024

Large, high-capacity models trained on diverse datasets have shown remarkable successes on efficiently tackling downstream applications. In domains from NLP to Computer Vision, this has led to a consolidation of pretrained models, with general pretrained backbones serving as a starting point for man

Cited by 910SourcecodeScholar
2024

Open X-Embodiment: Robotic Learning Datasets and RT-X Models : Open X-Embodiment Collaboration0

ICRA 2024poster

Large, high-capacity models trained on diverse datasets have shown remarkable successes on efficiently tackling downstream applications. In domains from NLP to Computer Vision, this has led to a consolidation of pretrained models, with general pretrained backbones serving as a starting point for man…

Cited by 259SourcecodeScholar
2023

Cherry-Picking with Reinforcement Learning

RSS 2023poster

Grasping small objects surrounded by unstable or non-rigid material plays a crucial role in applications such as surgery, harvesting, construction, disaster recovery, and assisted feeding. This task is especially difficult when fine manipulation is required in the presence of sensor noise and percep…

2023

Energy-based Models are Zero-Shot Planners for Compositional Scene Rearrangement

RSS 2023poster

Language is compositional; an instruction can express multiple relation constraints to hold among objects in a scene that a robot is tasked to rearrange. Our focus in this work is an instructable scene-rearranging framework that generalizes to longer instructions and to spatial concept compositions…

2022

Planning with Spatial-Temporal Abstraction from Point Clouds for Deformable Object Manipulation

CoRL 2022poster

Effective planning of long-horizon deformable object manipulation requires suitable abstractions at both the spatial and temporal levels. Previous methods typically either focus on short-horizon tasks or make strong assumptions that full-state information is available, which prevents their use on de…

Cited by 39SourceScholar
2021

Visually-Grounded Library of Behaviors for Manipulating Diverse Objects across Diverse Configurations and Views

CoRL 2021poster

We propose a visually-grounded library of behaviors approach for learning to manipulate diverse objects across varying initial and goal configurations and camera placements. Our key innovation is to disentangle the standard image-to-action mapping into two separate modules that use different types o…

Cited by 1SourceScholar