Results 21 to 30 of about 56,420 (266)

Efficient Counterexample Generation for Control Systems Using Multi-Fidelity Bayesian Optimization

open access: yesIEEE Access
Testing controllers in safety-critical systems is vital for ensuring their safety and preventing catastrophic failures. In this paper, we address the falsification problem within closed-loop control systems through simulation.
Zahra Shahrooei   +2 more
doaj   +1 more source

Bayesian Functional Optimization

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2018
Bayesian optimization (BayesOpt) is a derivative-free approach for sequentially optimizing stochastic black-box functions. Standard BayesOpt, which has shown many successes in machine learning applications, assumes a finite dimensional domain which often is a parametric space.
Vien, Ngo Anh   +2 more
openaire   +2 more sources

Warm starting Bayesian optimization [PDF]

open access: yes2016 Winter Simulation Conference (WSC), 2016
To Appear in the Proc.
Matthias Poloczek   +2 more
openaire   +2 more sources

Hybrid Optimization Algorithm for Bayesian Network Structure Learning

open access: yesInformation, 2019
Since the beginning of the 21st century, research on artificial intelligence has made great progress. Bayesian networks have gradually become one of the hotspots and important achievements in artificial intelligence research.
Xingping Sun   +5 more
doaj   +1 more source

Bayesian Optimization with Local Search [PDF]

open access: yes, 2020
Global optimization finds applications in a wide range of real world problems. The multi-start methods are a popular class of global optimization techniques, which are based on the ideas of conducting local searches at multiple starting points. In this work we propose a new multi-start algorithm where the starting points are determined in a Bayesian ...
Yuzhou Gao, Tengchao Yu, Jinglai Li
openaire   +2 more sources

NUBO: A Transparent Python Package for Bayesian Optimization

open access: yesJournal of Statistical Software
NUBO, short for Newcastle University Bayesian Optimisation, is a Bayesian optimization framework for the optimization of expensive-to-evaluate black-box functions, such as physical experiments and computer simulators.
Mike Diessner   +2 more
doaj   +1 more source

Bayesian optimization on networks

open access: yesJournal of Computational Physics
This paper studies optimization on networks modeled as metric graphs. Motivated by applications where the objective function is expensive to evaluate or only available as a black box, we develop Bayesian optimization algorithms that sequentially update a Gaussian process surrogate model of the objective to guide the acquisition of query points.
W. Li, D. Sanz-Alonso, R. Yang
openaire   +2 more sources

Exploratory Landscape Validation for Bayesian Optimization Algorithms

open access: yesMathematics
Bayesian optimization algorithms are widely used for solving problems with a high computational complexity in terms of objective function evaluation. The efficiency of Bayesian optimization is strongly dependent on the quality of the surrogate models of ...
Taleh Agasiev, Anatoly Karpenko
doaj   +1 more source

Accurate and reliable estimation of kinetic parameters for environmental engineering applications: A global, multi objective, Bayesian optimization approach

open access: yesMethodsX, 2019
Accurate and reliable predictions of bacterial growth and metabolism from unstructured kinetic models are critical to the proper operation and design of engineered biological treatment and remediation systems. As such, parameter estimation has progressed
Derek C. Manheim, Russell L. Detwiler
doaj   +1 more source

Stratified Bayesian Optimization [PDF]

open access: yes, 2018
We consider derivative-free black-box global optimization of expensive noisy functions, when most of the randomness in the objective is produced by a few influential scalar random inputs. We present a new Bayesian global optimization algorithm, called Stratified Bayesian Optimization (SBO), which uses this strong dependence to improve performance.
Saul Toscano-Palmerin, Peter I. Frazier
openaire   +2 more sources

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