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Mengchao Zhang

9 accepted papers

2026

A Systematic Study of Data Modalities and Strategies for Co-training Large Behavior Models for Robot Manipulation

RSS 2026poster

Large behavior models (LBMs) have shown strong dexterous manipulation capabilities by extending imitation learning to large-scale training on extensive multi-task robot data, yet their generalization remains limited by the insufficient coverage of available robot data. To expand this coverage withou…

Cited by 0SourceScholar
2026

Interactive World Simulator for Robot Policy Training and Evaluation

RSS 2026poster

Action-conditioned video prediction models (often referred to as world models) have shown strong potential for robotics applications, but existing world models are often slow and struggle to capture accurate physical interactions over long horizons, limiting their use for scalable robot policy train…

Cited by 0SourceScholar
2025

JointSwinUNETR: an Efficient Feature-enhanced Architecture for Small Intestine Cine MRI Segmentation

ICASSP 2025accepted

The Cine MRI of the small intestine is a dynamic magnetic resonance imaging technique used to observe and evaluate small intestine motility. It captures sequential images of the organ in motion over time through rapid imaging. The Transformer architecture is highly effective at capturing long-range…

Cited by 0SourceScholar
2024

A Cross Search Method for Data Augmentation in Neural Machine Translation

ICASSP 2024accepted

Large language models (LLMs) have shown excellent performance on general machine translation. However, LLMs suffer from high deployment cost and unsatisfying quality on low-resource domains. To this end, we explore to build base translation models with LLM-enhanced data augmentation. For data augmen…

Cited by 0SourceScholar
2024

Adaptive Trajectory Database Learning for Nonlinear Control with Hybrid Gradient Optimization

IROS 2024poster

This paper presents a novel experience-based technique, called EHGO, for sample-efficient adaptive control of nonlinear systems in the presence of dynamical modeling errors. The starting point for EHGO is a database seeded with many trajectories optimized under a reference estimate of real system dy…

Cited by 0SourceScholar
2023

Simultaneous Trajectory Optimization and Contact Selection for Multi-Modal Manipulation Planning

RSS 2023poster

Complex dexterous manipulations require switching between prehensile and non-prehensile grasps, and sliding and pivoting the object against the environment. This paper presents a manipulation planner that is able to reason about diverse changes of contacts to discover such plans. It implements a hyb…

Cited by 11SourcePDFScholar
2021

Hybrid Sampling/Optimization-based Planning for Agile Jumping Robots on Challenging Terrains

ICRA 2021poster

This paper proposes a hybrid planning framework that generates complex dynamic motion plans for jumping legged robots to traverse challenging terrains. By employing a motion primitive, the original problem is decoupled as path planning followed by a trajectory optimization (TO) module that handles d…

Cited by 10SourceScholar
2021

Semi-Infinite Programming with Complementarity Constraints for Pose Optimization with Pervasive Contact

ICRA 2021poster

This paper presents a novel computational model to address the problem that contact is an infinite phenomena involving continuous regions of interaction. The problem is cast as a semi-infinite program with complementarity constraints (SIPCC). Rather than pre-discretize contacting surfaces into a fin…

Cited by 7SourceScholar