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Lingfeng Sun

21 accepted papers

2026

EMPM: Embodied MPM for Modeling and Simulation of Deformable Objects

RA-L 2026

Modeling deformable objects – especially continuum materials – in a way that is physically plausible, generalizable, and data-efficient remains challenging across 3D vision, graphics, and robotic manipulation. Many existing methods oversimplify the rich dynamics of deformable objects or require larg

Cited by 1SourcecodeScholar
2026

NovaFlow: Zero-Shot Manipulation Via Actionable Flow from Generated Videos

ICRA 2026poster

Enabling robots to execute novel manipulation tasks zero-shot is a central goal in robotics. Most existing methods assume in-distribution tasks or rely on fine-tuning with embodiment-matched data, limiting transfer across platforms. We present NovaFlow, an autonomous manipulation framework that conv…

2026

Real-Is-Sim: Bridging the Sim-To-Real Gap with a Dynamic Digital Twin

ICRA 2026poster

We introduce real-is-sim, a new approach to integrating simulation into behavior cloning pipelines. In contrast to real-only methods, which lack the ability to safely test policies before deployment, and sim-to-real methods, which require complex adaptation to cross the sim-to-real gap, our framewor…

2026

VER: Vision Expert Transformer for Robot Learning via Foundation Distillation and Dynamic Routing

ICLR 2026poster

Pretrained vision foundation models (VFMs) advance robotic learning via rich visual representations, yet individual VFMs typically excel only in specific domains, limiting generality across tasks. Distilling multiple VFMs into a unified representation can mitigate this limitation but often yields in…

Cited by 0SourceScholar
2025

Adaptive Energy Regularization for Autonomous Gait Transition and Energy-Efficient Quadruped Locomotion

ICRA 2025

In reinforcement learning for legged robot locomotion, crafting effective reward strategies is crucial. Predefined gait patterns and complex reward systems are widely used to stabilize policy training. Drawing from the natural locomotion behaviors of humans and animals, which adapt their gaits to mi

Cited by 7SourceScholar
2025

On-Robot Reinforcement Learning with Goal-Contrastive Rewards

ICRA 2025

Reinforcement Learning (RL) has the potential to enable robots to learn from their own actions in the real world. Unfortunately, RL can be prohibitively expensive, in terms of on-robot runtime, due to inefficient exploration when learning from a sparse reward signal. Designing dense reward functions

Cited by 5SourcecodeScholar
2025

Versatile Loco-Manipulation through Flexible Interlimb Coordination

CoRL 2025oral

The ability to flexibly leverage limbs for loco-manipulation is essential for enabling autonomous robots to operate in unstructured environments. Yet, prior work on loco-manipulation is often constrained to specific tasks or predetermined limb configurations. In this work, we present einforcement Le…

Cited by 0SourceScholar
2024

Human-oriented Representation Learning for Robotic Manipulation

RSS 2024poster

Humans inherently possess generalizable visual representations that empower them to efficiently explore and interact with the environments in manipulation tasks. We advocate that such a representation automatically arises from simultaneously learning about multiple simple perceptual skills that are…

Cited by 12SourcePDFScholar
2024

In-Hand Following of Deformable Linear Objects Using Dexterous Fingers with Tactile Sensing

IROS 2024

Most research on deformable linear object (DLO) manipulation assumes rigid grasping. However, beyond rigid grasping and re-grasping, in-hand following is also an essential skill that humans use to dexterously manipulate DLOs, which requires continuously changing the grasp point by in-hand sliding wh

Cited by 13SourceScholar
2024

Interactive Planning Using Large Language Models for Partially Observable Robotic Tasks

ICRA 2024poster

Designing robotic agents to perform open vocabulary tasks has been the long-standing goal in robotics and AI. Recently, Large Language Models (LLMs) have achieved impressive results in creating robotic agents for performing open vocabulary tasks. However, planning for these tasks in the presence of…

Cited by 31SourceScholar
2024

Multi-level Reasoning for Robotic Assembly: From Sequence Inference to Contact Selection

ICRA 2024poster

Automating the assembly of objects from their parts is a complex problem with innumerable applications in manufacturing, maintenance, and recycling. Unlike existing research, which is limited to target segmentation, pose regression, or using fixed target blueprints, our work presents a holistic mult…

Cited by 4SourceScholar
2024

Optimizing Diffusion Models for Joint Trajectory Prediction and Controllable Generation

ECCV 2024poster

"Diffusion models are promising for joint trajectory prediction and controllable generation in autonomous driving, but they face challenges of inefficient inference steps and high computational demands. To tackle these challenges, we introduce Optimal Gaussian Diffusion (OGD) and Estimated Clean Man…

2023

Efficient Multi-Task and Transfer Reinforcement Learning With Parameter-Compositional Framework

RA-L 2023

In this work, we investigate the potential of improving multi-task training and also leveraging it for transferring in the reinforcement learning setting. We identify several challenges towards this goal and propose a transferring approach with a parameter-compositional formulation. We investigate w

Cited by 13SourceScholar
2023

Efficient Sim-to-real Transfer of Contact-Rich Manipulation Skills with Online Admittance Residual Learning

CoRL 2023poster

Learning contact-rich manipulation skills is essential. Such skills require the robots to interact with the environment with feasible manipulation trajectories and suitable compliance control parameters to enable safe and stable contact. However, learning these skills is challenging due to data inef…

Cited by 24SourceScholar
2023

Long-Term Dynamic Window Approach for Kinodynamic Local Planning in Static and Crowd Environments

RA-L 2023

Local planning for a differential wheeled robot is designed to generate kinodynamic feasible actions that guide the robot to a goal position along the navigation path while avoiding obstacles. Reactive, predictive, and learning-based methods are widely used in local planning. However, few of them ca

Cited by 15SourcecodeScholar
2022

Cross Domain Robot Imitation with Invariant Representation

ICRA 2022poster

Animals are able to imitate each others' behavior, despite their difference in biomechanics. In contrast, imitating other similar robots is a much more challenging task in robotics. This problem is called cross domain imitation learning (CDIL). In this paper, we consider CDIL on a class of similar r…

Cited by 18SourcecodeScholar
2022

Learn to Grasp with Less Supervision: A Data-Efficient Maximum Likelihood Grasp Sampling Loss

ICRA 2022poster

Robotic grasping for a diverse set of objects is essential in many robot manipulation tasks. One promising approach is to learn deep grasping models from large training datasets of object images and grasp labels. However, empirical grasping datasets are typically sparsely labeled (i.e., a small numb…

Cited by 16SourceScholar
2022

PaCo: Parameter-Compositional Multi-task Reinforcement Learning

NeurIPS 2022accept

The purpose of multi-task reinforcement learning (MTRL) is to train a single policy that can be applied to a set of different tasks. Sharing parameters allows us to take advantage of the similarities among tasks. However, the gaps between contents and difficulties of different tasks bring us challen…

2022

PreTraM: Self-Supervised Pre-training via Connecting Trajectory and Map

ECCV 2022poster

"Deep learning has recently achieved significant progress in trajectory forecasting. However, the scarcity of trajectory data inhibits the data-hungry deep-learning models from learning good representations. While pre-training methods for representation learning exist in computer vision and natural…

2021

Diverse Critical Interaction Generation for Planning and Planner Evaluation

IROS 2021poster

Generating diverse and comprehensive interacting agents to evaluate the decision-making modules is essential for the safe and robust planning of autonomous vehicles (AV). Due to efficiency and safety concerns, most researchers choose to train interactive adversary (competitive or weakly competitive)…

Cited by 21SourceScholar