Evolutionary Informatics

A Vivisection of the ev Computer Organism: Identifying Sources of Active Information [with Erratum]

George Montañez, Winston Ewert, William A. Dembski, Robert J. Marks II

Abstract

ev is an evolutionary search algorithm proposed to simulate biological evolution. As such, researchers have claimed that it demonstrates that a blind, unguided search is able to generate new information. However, analysis shows that any non-trivial computer search needs to exploit one or more sources of knowledge to make the search successful. Search algorithms mine active information from these resources, with some search algorithms performing better than others. We illustrate these principles in the analysis of ev. The sources of knowledge in ev include a Hamming oracle and a perceptron structure that predisposes the search towards its target. The original ev uses these resources in an evolutionary algorithm. Although the evolutionary algorithm finds the target, we demonstrate a simple stochastic hill climbing algorithm uses the resources more efficiently.

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Related Resources

• Dissection of "A Vivisection of the ev Computer Organism: Identifying Sources of Active Information" (mirrored) A brief (and perhaps perliminary) response from the author Ev.
• The autopsy of a dissection of a vivisection Our response to Schneider's response