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Open AccessJournal ArticleDOI

Penalty Function Methods for Constrained Optimization with Genetic Algorithms

TLDR
These penalty-based methods for handling constraints in Genetic Algorithms are presented and discussed and their strengths and weaknesses are discussed.
Abstract
Genetic Algorithms are most directly suited to unconstrained optimization. Application of Genetic Algorithms to constrained optimization problems is often a challenging effort. Several methods have been proposed for handling constraints. The most common method in Genetic Algorithms to handle constraints is to use penalty functions. In this paper, we present these penalty-based methods and discuss their strengths and weaknesses.

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Journal ArticleDOI

Test and Validation of the Surrogate-Based, Multi-Objective GOMORS Algorithm against the NSGA-II Algorithm in Structural Shape Optimization

TL;DR: The results show that the GOMORS outperforms the NSGA-II vastly regarding the number of function calls and Pareto-efficient results without the feasibility constraint, and the authors provide a clear recommendation towards the surrogate-based GomORS for costly and multi-objective evaluations.

Mendelian and Non-Mendelian Ancestral Repair for Constrained Evolutionary Optimisation

TL;DR: This thesis adapts this novel genetic repair strategy to an EA to solve two benchmark constraint based problems specifically permutation problems as this category of problem are often recognised as the most problematic problems for the canonical EA to deal with and shows that under biologically inspired conditions, the non-Mendelian repair strategy continues to outperform its Mendelian counterpart.
DissertationDOI

Konzepte und Algorithmen zur Datensynchronisation mit Cloud-Datenzentren

Paul Hummel
TL;DR: In this article, the Synchronisation of Daten with Cloud-Rechenzentren is discussed, and ein Architektur und Mechanismen entwickelt, ein Ausschnitt der Losung implementiert and evaluiert.
Posted Content

Non-Linear Programming: Maximize SNR for Designing Spreading Sequence - Part II: Conditions for Optimal Spreading Sequences.

TL;DR: This paper derives the optimization problems with the expression SNR derived in Part I and the necessary conditions for the global solutions and numerically solve the problems and evaluate the solutions with two factors, mean-square correlations and maximum mean- square correlations.
References
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Book

Genetic algorithms in search, optimization, and machine learning

TL;DR: In this article, the authors present the computer techniques, mathematical tools, and research results that will enable both students and practitioners to apply genetic algorithms to problems in many fields, including computer programming and mathematics.
Book

Genetic Algorithms + Data Structures = Evolution Programs

TL;DR: GAs and Evolution Programs for Various Discrete Problems, a Hierarchy of Evolution Programs and Heuristics, and Conclusions.
Book

Nonlinear Programming: Theory and Algorithms

TL;DR: The book is a solid reference for professionals as well as a useful text for students in the fields of operations research, management science, industrial engineering, applied mathematics, and also in engineering disciplines that deal with analytical optimization techniques.
Journal ArticleDOI

An efficient constraint handling method for genetic algorithms

TL;DR: GA's population-based approach and ability to make pair-wise comparison in tournament selection operator are exploited to devise a penalty function approach that does not require any penalty parameter to guide the search towards the constrained optimum.
Book

Evolutionary algorithms in theory and practice

Thomas Bäck
TL;DR: In this work, the author compares the three most prominent representatives of evolutionary algorithms: genetic algorithms, evolution strategies, and evolutionary programming within a unified framework, thereby clarifying the similarities and differences of these methods.