Search Results for author: Bratislav Svetozarevic

Found 15 papers, 7 papers with code

Principled Preferential Bayesian Optimization

1 code implementation8 Feb 2024 Wenjie Xu, Wenbin Wang, Yuning Jiang, Bratislav Svetozarevic, Colin N. Jones

We study the problem of preferential Bayesian optimization (BO), where we aim to optimize a black-box function with only preference feedback over a pair of candidate solutions.

Bayesian Optimization Gaussian Processes

Stable Linear Subspace Identification: A Machine Learning Approach

1 code implementation6 Nov 2023 Loris Di Natale, Muhammad Zakwan, Bratislav Svetozarevic, Philipp Heer, Giancarlo Ferrari-Trecate, Colin N. Jones

Machine Learning (ML) and linear System Identification (SI) have been historically developed independently.

Multi-Agent Bayesian Optimization with Coupled Black-Box and Affine Constraints

no code implementations2 Oct 2023 Wenjie Xu, Yuning Jiang, Bratislav Svetozarevic, Colin N. Jones

Additionally, the algorithm guarantees an $\mathcal{O}(N\sqrt{T})$ bound on the cumulative violation for the known affine constraints, where $N$ is the number of agents.

Bayesian Optimization Gaussian Processes

Data-driven adaptive building thermal controller tuning with constraints: A primal-dual contextual Bayesian optimization approach

no code implementations1 Oct 2023 Wenjie Xu, Bratislav Svetozarevic, Loris Di Natale, Philipp Heer, Colin N Jones

We study the problem of tuning the parameters of a room temperature controller to minimize its energy consumption, subject to the constraint that the daily cumulative thermal discomfort of the occupants is below a given threshold.

Bayesian Optimization

Bayesian Optimization of Expensive Nested Grey-Box Functions

no code implementations8 Jun 2023 Wenjie Xu, Yuning Jiang, Bratislav Svetozarevic, Colin N. Jones

We consider the problem of optimizing a grey-box objective function, i. e., nested function composed of both black-box and white-box functions.

Bayesian Optimization

Primal-Dual Contextual Bayesian Optimization for Control System Online Optimization with Time-Average Constraints

1 code implementation12 Apr 2023 Wenjie Xu, Yuning Jiang, Bratislav Svetozarevic, Colin N. Jones

This paper studies the problem of online performance optimization of constrained closed-loop control systems, where both the objective and the constraints are unknown black-box functions affected by exogenous time-varying contextual disturbances.

Bayesian Optimization Gaussian Processes

Towards Scalable Physically Consistent Neural Networks: an Application to Data-driven Multi-zone Thermal Building Models

no code implementations23 Dec 2022 Loris Di Natale, Bratislav Svetozarevic, Philipp Heer, Colin Neil Jones

While physically sound, classical gray-box models are often cumbersome to identify and scale, and their accuracy might be hindered by their limited expressiveness.

Computationally Efficient Reinforcement Learning: Targeted Exploration leveraging Simple Rules

no code implementations30 Nov 2022 Loris Di Natale, Bratislav Svetozarevic, Philipp Heer, Colin N. Jones

Model-free Reinforcement Learning (RL) generally suffers from poor sample complexity, mostly due to the need to exhaustively explore the state-action space to find well-performing policies.

reinforcement-learning Reinforcement Learning +1

CONFIG: Constrained Efficient Global Optimization for Closed-Loop Control System Optimization with Unmodeled Constraints

no code implementations21 Nov 2022 Wenjie Xu, Yuning Jiang, Bratislav Svetozarevic, Colin N. Jones

In this paper, the CONFIG algorithm, a simple and provably efficient constrained global optimization algorithm, is applied to optimize the closed-loop control performance of an unknown system with unmodeled constraints.

Physically Consistent Neural ODEs for Learning Multi-Physics Systems

no code implementations11 Nov 2022 Muhammad Zakwan, Loris Di Natale, Bratislav Svetozarevic, Philipp Heer, Colin N. Jones, Giancarlo Ferrari Trecate

Since IPHS models are consistent with the first and second principles of thermodynamics by design, so are the proposed Physically Consistent NODEs (PC-NODEs).

Physically Consistent Neural Networks for building thermal modeling: theory and analysis

1 code implementation6 Dec 2021 Loris Di Natale, Bratislav Svetozarevic, Philipp Heer, Colin N. Jones

To counter this known generalization issue, physics-informed NNs have recently been introduced, where researchers introduce prior knowledge in the structure of NNs to ground them in known underlying physical laws and avoid classical NN generalization issues.

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