Node-depth phylogenetic-based encoding, a spanning-tree representation for evolutionary algorithms. part I: Proposal and properties analysis

Representation choice and the development of search operators are crucial aspects of the efficiency of Evolutionary Algorithms (EAs) in combinatorial problems. Several researchers have proposed representations and operators for EAs that manipulate spanning trees. This paper proposes a new encoding c...

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Bibliographic Details
Published in:Swarm and evolutionary computation Vol. 31; pp. 1 - 10
Main Authors: Lima, Telma Woerle de, Delbem, Alexandre Cláudio Botazzo, Soares, Anderson da Silva, Federson, Fernando Marques, Junior, João Bosco Augusto London, Baalen, Jeffrey Van
Format: Journal Article
Language:English
Published: Elsevier B.V 01.12.2016
Subjects:
Dynamic data structures
Evolutionary algorithms
Network design problems
Tree representations
Network design problems
Dynamic data structures
Evolutionary algorithms
Tree representations
ISSN:2210-6502
Online Access:Get full text
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Summary:Representation choice and the development of search operators are crucial aspects of the efficiency of Evolutionary Algorithms (EAs) in combinatorial problems. Several researchers have proposed representations and operators for EAs that manipulate spanning trees. This paper proposes a new encoding called Node-depth Phylogenetic-based Encoding (NPE). NPE represents spanning trees by the relation between nodes and their depths using a relatively simple codification/decodification process. The proposed NPE operators are based on methods used for tree rearrangement in phylogenetic tree reconstruction: subtree prune and regraft; and tree bisection and reconstruction. NPE and its operators are designed to have high locality, feasibility, low time complexity, be unbiased, and have independent weight. Therefore, NPE is a good choice of data structure for EAs applied to network design problems.
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ISSN:2210-6502
DOI:10.1016/j.swevo.2016.05.001