Search Results for author: Hongkai Dai

Found 5 papers, 2 papers with code

Lyapunov-stable Neural Control for State and Output Feedback: A Novel Formulation for Efficient Synthesis and Verification

1 code implementation11 Apr 2024 Lujie Yang, Hongkai Dai, Zhouxing Shi, Cho-Jui Hsieh, Russ Tedrake, huan zhang

The flexibility and efficiency of our framework allow us to demonstrate Lyapunov-stable output feedback control with synthesized NN-based controllers and NN-based observers with formal stability guarantees, for the first time in literature.

Fighting Uncertainty with Gradients: Offline Reinforcement Learning via Diffusion Score Matching

no code implementations24 Jun 2023 H. J. Terry Suh, Glen Chou, Hongkai Dai, Lujie Yang, Abhishek Gupta, Russ Tedrake

However, in order to apply them effectively in offline optimization paradigms such as offline Reinforcement Learning (RL) or Imitation Learning (IL), we require a more careful consideration of how uncertainty estimation interplays with first-order methods that attempt to minimize them.

Imitation Learning Offline RL +2

AdaptSim: Task-Driven Simulation Adaptation for Sim-to-Real Transfer

no code implementations9 Feb 2023 Allen Z. Ren, Hongkai Dai, Benjamin Burchfiel, Anirudha Majumdar

Addressing this issue, we propose AdaptSim, a new task-driven adaptation framework for sim-to-real transfer that aims to optimize task performance in target (real) environments -- instead of matching dynamics between simulation and reality.

A Convex-Combinatorial Model for Planar Caging

1 code implementation17 Sep 2018 Bernardo Aceituno-Cabezas, Hongkai Dai, Alberto Rodriguez

Caging is a promising tool which allows a robot to manipulate an object without directly reasoning about the contact dynamics involved.

Robotics

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