Results 31 to 40 of about 9,535,029 (378)

A Procedure of Global Optimization and its Application to Estimate Parameters in Interaction Spatial Models [PDF]

open access: yesInternational Journal for Simulation and Multidisciplinary Design Optimization, 2010
This work concerns the calibration of trip distribution models issued from Transportation Planning. The optimal estimators are the global minima of a non-convex function.
Bez Edson Tadeu   +2 more
doaj   +1 more source

Deterministic global optimization using space-filling curves and multiple estimates of Lipschitz and Holder constants [PDF]

open access: yes, 2015
In this paper, the global optimization problem $\min_{y\in S} F(y)$ with $S$ being a hyperinterval in $\Re^N$ and $F(y)$ satisfying the Lipschitz condition with an unknown Lipschitz constant is considered.
Lera, Daniela, Sergeyev, Yaroslav D.
core   +2 more sources

Constrained Mixed-Variable Design Optimization Based on Particle Swarm Optimizer with a Diversity Classifier for Cyclically Neighboring Subpopulations

open access: yesMathematics, 2020
In this research, an easy-to-use particle swarm optimizer (PSO) for solving constrained engineering design problems involving mixed-integer-discrete-continuous (MIDC) variables that adopt two kinds of diversity-enhancing mechanisms to achieve superior ...
Tae-Hyoung Kim   +2 more
doaj   +1 more source

Experimental Study of Excessive Local Refinement Reduction Techniques for Global Optimization DIRECT-Type Algorithms

open access: yesMathematics, 2022
This article considers a box-constrained global optimization problem for Lipschitz continuous functions with an unknown Lipschitz constant. The well-known derivative-free global search algorithm DIRECT (DIvide RECTangle) is a promising approach for such ...
Linas Stripinis, Remigijus Paulavičius
doaj   +1 more source

Global optimization for low-dimensional switching linear regression and bounded-error estimation [PDF]

open access: yes, 2017
The paper provides global optimization algorithms for two particularly difficult nonconvex problems raised by hybrid system identification: switching linear regression and bounded-error estimation.
Lauer, Fabien
core   +4 more sources

Thermodynamics of Global Optimization

open access: yesPhysical Review Letters, 1998
Theoretical design of global optimization algorithms can profitably utilize recent statistical mechanical treatments of potential energy surfaces (PES's). Here we analyze a particular method to explain its success in locating global minima on surfaces with a multiple-funnel structure, where trapping in local minima with different morphologies is ...
Doye, J, Wales, D
openaire   +2 more sources

Combinatorial and Global Optimization [PDF]

open access: yes, 2002
"Combinatorial and global optimization problems appear in a wide range of applications in operations research, engineering, biological science, and computer science. In combinatorial optimization and graph theory, many approaches have been developed that link the discrete universe to the continuous universe through geometric, analytic, and algebraic ...
Pardalos, P. M. (Panos M.), 1954-   +2 more
openaire   +2 more sources

Machine learning for global optimization [PDF]

open access: yesComputational Optimization and Applications, 2010
In this paper we introduce the LeGO (Learning for Global Optimization) approach for global optimization in which machine learning is used to predict the outcome of a computationally expensive global optimization run, based upon a suitable training performed by standard runs of the same global optimization method.
CASSIOLI, ANDREA   +4 more
openaire   +6 more sources

Topology optimization of analog circuit design via global optimization using factorization machines with digital annealer

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing
This study delves into the automatic analog circuit design, focusing primarily on topology optimization. Many real-world calculations and evaluations often involve complex and nonlinear problems, posing significant challenges in optimization.
Masaharu HIDA   +4 more
doaj   +1 more source

A Family of Hybrid Stochastic Conjugate Gradient Algorithms for Local and Global Minimization Problems

open access: yesMathematics, 2022
This paper contains two main parts, Part I and Part II, which discuss the local and global minimization problems, respectively. In Part I, a fresh conjugate gradient (CG) technique is suggested and then combined with a line-search technique to obtain a ...
Khalid Abdulaziz Alnowibet   +4 more
doaj   +1 more source

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