Search Results for author: Lekan Molu

Found 8 papers, 1 papers with code

Verification-Aided Learning of Neural Network Barrier Functions with Termination Guarantees

no code implementations12 Mar 2024 Shaoru Chen, Lekan Molu, Mahyar Fazlyab

With a convex formulation of the barrier function synthesis, we propose to first learn an empirically well-behaved NN basis function and then apply a fine-tuning algorithm that exploits the convexity and counterexamples from the verification failure to find a valid barrier function with finite-step termination guarantees: if there exist valid barrier functions, the fine-tuning algorithm is guaranteed to find one in a finite number of iterations.

Self-Supervised Learning valid

Singularly Perturbed Layered Control of Deformable Bodies

1 code implementation10 Dec 2023 Lekan Molu

Variable curvature modeling tools provide an accurate means of controlling infinite degrees-of-freedom deformable bodies and structures.

PcLast: Discovering Plannable Continuous Latent States

no code implementations6 Nov 2023 Anurag Koul, Shivakanth Sujit, Shaoru Chen, Ben Evans, Lili Wu, Byron Xu, Rajan Chari, Riashat Islam, Raihan Seraj, Yonathan Efroni, Lekan Molu, Miro Dudik, John Langford, Alex Lamb

Goal-conditioned planning benefits from learned low-dimensional representations of rich, high-dimensional observations.

Robust Policy Optimization in Continuous-time Mixed $\mathcal{H}_2/\mathcal{H}_\infty$ Stochastic Control

no code implementations9 Sep 2022 Leilei Cui, Lekan Molu

The need for known dynamics operators is circumvented and we arrive at a reinforced PO algorithm (via policy iteration) where an upper bound on the $\mathcal{H}_2$ norm is minimized (to guarantee stability) and a robustness metric is enforced by maximizing the cost with respect to a controller that includes the level of noise attenuation specified by the system's $H_\infty$ norm.

reinforcement-learning Reinforcement Learning (RL)

Comments on "Time-Varying Lyapunov Functions for Tracking Control of Mechanical Systems With and Without Frictions"

no code implementations30 Aug 2022 Lekan Molu

The authors established asymptotic stability with the choice of two symmetric positive definite matrices restricted by certain eigenvalue bounds in the control law.

Guaranteed Discovery of Control-Endogenous Latent States with Multi-Step Inverse Models

no code implementations17 Jul 2022 Alex Lamb, Riashat Islam, Yonathan Efroni, Aniket Didolkar, Dipendra Misra, Dylan Foster, Lekan Molu, Rajan Chari, Akshay Krishnamurthy, John Langford

In many sequential decision-making tasks, the agent is not able to model the full complexity of the world, which consists of multitudes of relevant and irrelevant information.

Decision Making

Interaction-Grounded Learning with Action-inclusive Feedback

no code implementations16 Jun 2022 Tengyang Xie, Akanksha Saran, Dylan J. Foster, Lekan Molu, Ida Momennejad, Nan Jiang, Paul Mineiro, John Langford

Consider the problem setting of Interaction-Grounded Learning (IGL), in which a learner's goal is to optimally interact with the environment with no explicit reward to ground its policies.

Brain Computer Interface

A Second-Order Reachable Sets Computation Scheme via a Cauchy-Type Variational Hamilton-Jacobi-Isaacs Equation

no code implementations8 Mar 2022 Lekan Molu, Ian Abraham, Sylvia Herbert

Motivated by the scalability limitations of Eulerian methods for variational Hamilton-Jacobi-Isaacs (HJI) formulations that provide a least restrictive controller in problems that involve state or input constraints under a worst-possible disturbance, we introduce a second-order, successive sweep algorithm for computing the zero sublevel sets of a popular reachability value functional.

Cannot find the paper you are looking for? You can Submit a new open access paper.