Results 11 to 20 of about 52,409 (312)

Discrete Puma Optimizer to Solve Combinatorial Optimization Problems

open access: yesInternational Journal of Computational Intelligence Systems
Discrete and combinatorial optimization problems such as routing, scheduling, and resource allocation present high computational complexity, limiting the effectiveness of classical exact optimization methods.
Ferzat Anka   +3 more
doaj   +4 more sources

An Improved Unordered Pair Bat Algorithm for Solving the Symmetrical Traveling Salesman Problem

open access: yesFoundations of Computing and Decision Sciences, 2022
Bat algorithm is an effective swarm intelligence optimization algorithm which is widely used to solve continuous optimization problems. But it still has some limitations in search process and can’t solve discrete optimization problems directly. Therefore,
Nan Zhang, Zhimin Lv, Shen Qiao, Ting Li
doaj   +1 more source

The MINLP Approach to Topology, Shape and Discrete Sizing Optimization of Trusses

open access: yesApplied Sciences, 2022
The paper presents the Mixed-Integer Non-linear Programming (MINLP) approach to the synthesis of trusses. The solution of continuous/discrete non-convex and non-linear optimization problems is discussed with respect to the simultaneous topology, shape ...
Simon Šilih   +2 more
doaj   +1 more source

Benchmarking problems for robust discrete optimization [PDF]

open access: yesComputers & Operations Research
Robust discrete optimization is a highly active field of research where a plenitude of combinations between decision criteria, uncertainty sets and underlying nominal problems are considered. Usually, a robust problem becomes harder to solve than its nominal counterpart, even if it remains in the same complexity class.
Marc Goerigk, Mohammad Khosravi
openaire   +2 more sources

Search and Rescue Optimization Algorithm for Size Optimization of Truss Structures with Discrete Variables [PDF]

open access: yesNumerical Methods in Civil Engineering, 2019
In this paper, a new metaheuristic algorithm is developed to sizing optimization of truss structures with discrete variables. The proposed algorithms namely search and rescue optimization algorithm (SAR), imitates the exploration behavior of humans ...
A. Shabani, B. Asgarian, M. Salido
doaj   +1 more source

Adaptive wireless network multi-objective optimization algorithm based on image synthesis

open access: yesEURASIP Journal on Image and Video Processing, 2018
Multi-objective optimization problems can be divided into continuous multi-objective optimization problems and discrete multi-objective optimization problems, and discrete multi-objective optimization is not universal.
Jianwei Zhang, Xueya Zhang
doaj   +1 more source

A comparison of mixed-variables Bayesian optimization approaches

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2022
Most real optimization problems are defined over a mixed search space where the variables are both discrete and continuous. In engineering applications, the objective function is typically calculated with a numerically costly black-box simulation ...
Jhouben Cuesta Ramirez   +5 more
doaj   +1 more source

A Modified Jaya Algorithm for Mixed-Variable Optimization Problems

open access: yesJournal of Intelligent Systems, 2018
Mixed-variable optimization problems consist of the continuous, integer, and discrete variables generally used in various engineering optimization problems.
Singh Prem, Chaudhary Himanshu
doaj   +1 more source

Computational Complexity of Discrete Optimization Problems [PDF]

open access: yes, 1979
Recent developments in the theory of computational complexity as applied to combinatorial problems have revealed the existence of a large class of so-called NP-complete problems, either all or none of which are solvable in polynomial time. Since many infamous combinatorial problems have been proved to be NP-complete, the latter alternative seems far ...
Lenstra, J.K., Rinnooy Kan, A.H.G.
openaire   +2 more sources

A New Multidisciplinary Design Optimization Method Accounting for Discrete and Continuous Variables under Aleatory and Epistemic Uncertainties [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2012
Various uncertainties are inevitable in complex engineered systems and must be carefully treated in design activities. Reliability-Based Multidisciplinary Design Optimization (RBMDO) has been receiving increasing attention in the past decades to ...
Hong-Zhong Huang   +4 more
doaj   +1 more source

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