Automatically assigned DDC number: 00631

Manually assigned DDC number: 00631

Title: Directed Crossover within Genetic Programming

Author:

Subject: W. B. Langdon Directed Crossover within Genetic Programming

Description: 9.97> The tree has never been executed, ffl The tree has never been executed in a test sub sequence which subsequently failed a consistency check (nak) and it is anticipated that it would not be executed by any of the fitness test cases that have not been used (unknown). However a tree may be selected as the crossover location immediately if either:-- ffl The number of times it was used in a test subsequence which subsequently passed its consistency check (ok) is less than nak, or 1 W.Langdon@cs.ucl.ac.uk W. B. Langdon 17 August 1995 2 ffl both it has never been run successfully and unknown is zero. Otherwise, the following ratio is calculated: nak + unknown ok + unknown (1) When ratios for three trees have been calculated, crossover occurs in the tree with the highest ratio. If 100 tre

Contributor: The Pennsylvania State University CiteSeer Archives

Publisher: unknown

Date: 1995-08-17

Pubyear: 0

Format: ps

Identifier: http://citeseer.ist.psu.edu/140402.html

Source: http://www.dai.ed.ac.uk/groups/evalg/Local_Copies_of_Papers/Langdon.Directed_Crossover_within_GP.ps.gz

Language: en

Rights: unrestricted

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