Search Results for author: Mohammad Khosravi

Found 11 papers, 0 papers with code

Guided Bayesian Optimization: Data-Efficient Controller Tuning with Digital Twin

no code implementations25 Mar 2024 Mahdi Nobar, Jürg Keller, Alisa Rupenyan, Mohammad Khosravi, John Lygeros

This article presents the guided Bayesian optimization algorithm as an efficient data-driven method for iteratively tuning closed-loop controller parameters using an event-triggered digital twin of the system based on available closed-loop data.

Bayesian Optimization Gaussian Processes

Generalized Power Iteration with Application to Distributed Connectivity Estimation of Asymmetric Networks

no code implementations8 Aug 2023 M. Mehdi Asadi, Mohammad Khosravi, Hesam Mosalli, Stephane Blouin, Amir G. Aghdam

The problem of connectivity assessment in an asymmetric network represented by a weighted directed graph is investigated in this article.

Connectivity Estimation

Diagonally Square Root Integrable Kernels in System Identification

no code implementations24 Feb 2023 Mohammad Khosravi, Roy S. Smith

For the stability of a Gaussian process centered at a stable impulse response, we show that the necessary and sufficient condition is the diagonally square root integrability of the corresponding kernel.

Representer Theorem for Learning Koopman Operators

no code implementations2 Aug 2022 Mohammad Khosravi

The learning problem is formulated as a constrained regularized empirical loss minimization in the infinite-dimensional space of linear operators.

The Existence and Uniqueness of Solutions for Kernel-Based System Identification

no code implementations17 Apr 2022 Mohammad Khosravi, Roy S. Smith

The consequent estimation problem is well-defined under the central assumption that the convolution operators restricted to the RKHS are continuous linear functionals.

Kernel-based Impulse Response Identification with Side-Information on Steady-State Gain

no code implementations31 Oct 2021 Mohammad Khosravi, Roy S. Smith

The objective function of this optimization problem is the empirical loss regularized with the norm of RKHS, and the constraint is considered for enforcing the integration of the steady-state gain side-information.

Regularized Identification with Internal Positivity Side-Information

no code implementations31 Oct 2021 Mohammad Khosravi, Roy S. Smith

Utilizing these conditions, the impulse response estimation problem is formulated as a constrained optimization in a reproducing kernel Hilbert space equipped with a stable kernel, and suitable constraints are imposed to encode the internal positivity side-information.

Parameter Identification for Digital Fabrication: A Gaussian Process Learning Approach

no code implementations20 Dec 2020 Yvonne R. Stürz, Mohammad Khosravi, Roy S. Smith

This is beneficial since measurements of the cable net form on the construction site are very expensive.

Gaussian Processes

Safety-Aware Cascade Controller Tuning Using Constrained Bayesian Optimization

no code implementations28 Oct 2020 Christopher König, Mohammad Khosravi, Markus Maier, Roy S. Smith, Alisa Rupenyan, John Lygeros

This paper presents an automated, model-free, data-driven method for the safe tuning of PID cascade controller gains based on Bayesian optimization.

Bayesian Optimization Gaussian Processes

Structured exploration in the finite horizon linear quadratic dual control problem

no code implementations31 Oct 2019 Andrea Iannelli, Mohammad Khosravi, Roy S. Smith

This paper presents a novel approach to synthesize dual controllers for unknown linear time-invariant systems with the tasks of optimizing a quadratic cost while reducing the uncertainty.

Efficient Exploration

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