Title
A novel selection mechanism for evolutionary algorithms with metameric variable-length representations.
Abstract
Metameric problems are variable-length optimization problems whose representations take on an at least partially segmented structure. This is referred to as a metameric representation. Frequently, each of these segments defines one of a number of analogous components in the solution. Examples include the nodes in a coverage network or turbines in a wind farm. Locating optimal solutions requires, in part, determining the optimal number of components. Evolutionary algorithms can be applied but require modifications to the traditional fixed-length operators. This study proposes a new selection operator for metameric problems: length niching selection. First, the population is partitioned into several niches based on solution length. A window function determines at which lengths a niche is formed. Local selection is then applied within each niche independently, resulting in a new parent population formed by a diverse set of solution lengths. A coverage and a wind farm problem are used to demonstrate the effectiveness of the new operator.
Year
DOI
Venue
2020
10.1007/s00500-020-04953-1
SOFT COMPUTING
Keywords
DocType
Volume
Metameric representations,Evolutionary algorithms,Variable-length algorithms
Journal
24.0
Issue
ISSN
Citations 
21.0
1432-7643
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Matt Ryerkerk120.71
Ronald C. Averill251.83
Kalyanmoy Deb3210581398.01
Erik Goodman414515.19