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Chengming Shi

4 accepted papers

2025

RewardDS: Privacy-Preserving Fine-Tuning for Large Language Models via Reward Driven Data Synthesis

EMNLP 2025

The success of large language models (LLMs) has attracted many individuals to fine-tune them for domain-specific tasks by uploading their data. However, in sensitive areas like healthcare and finance, privacy concerns often arise. One promising solution is to generate synthetic data with Differentia

2024

Advancing Humanoid Locomotion: Mastering Challenging Terrains with Denoising World Model Learning

RSS 2024poster

Humanoid robots, with their human-like skeletal structure, are especially suited for tasks in human-centric environments. However, this structure is accompanied by additional challenges in locomotion controller design, especially in complex real-world environments. As a result, existing humanoid rob…

2024

HiRT: Enhancing Robotic Control with Hierarchical Robot Transformers

CoRL 2024poster

Large Vision-Language-Action (VLA) models, leveraging powerful pre-trained Vision-Language Models (VLMs) backends, have shown promise in robotic control due to their impressive generalization ability. However, the success comes at a cost. Their reliance on VLM backends with billions of parameters le…

Cited by 8SourceScholar
2022

Reinforcement learning with Demonstrations from Mismatched Task under Sparse Reward

CoRL 2022poster

Reinforcement learning often suffer from the sparse reward issue in real-world robotics problems. Learning from demonstration (LfD) is an effective way to eliminate this problem, which leverages collected expert data to aid online learning. Prior works often assume that the learning agent and the ex…

Cited by 6SourceScholar