Improving and still passing the ALife test: Component-normalised activity statistics classify evolution in Geb as unbounded

Created by W.Langdon from gp-bibliography.bib Revision:1.4420

  author =       "Alastair Channon",
  title =        "Improving and still passing the {ALife} test:
                 Component-normalised activity statistics classify
                 evolution in {Geb} as unbounded",
  pages =        "173--181",
  booktitle =    "Proceedings of Artificial Life VIII, the 8th
                 International Conference on the Simulation and
                 Synthesis of Living Systems",
  year =         "2002",
  editor =       "Russell K. Standish and Mark A. Bedau and 
                 Hussein A. Abbass",
  address =      "University of New South Wales, Sydney, NSW,
  publisher_address = "Cambridge, MA, USA",
  month =        "9th-13th " # dec,
  publisher =    "The MIT Press",
  keywords =     "genetic algorithms, genetic programming, natural
  URL =          "",
  URL =          "",
  size =         "10 pages",
  abstract =     "Bedau's (1998a) classification system for long-term
                 evolutionary dynamics provides a test for open-ended
                 evolution. Making this ALife test more rigorous, and
                 passing it, are two of the most important open problems
                 in the field. Previously (Channon 2001) I presented the
                 result that Geb, a system designed to verify and extend
                 theories behind the generation of evolutionary emergent
                 systems (Channon & Damper 2000), has passed this test.
                 However I also criticised the test, most significantly
                 with regard to its normalisation method for artificial
                 systems. This paper details a modified normalisation
                 method, based on component activity normalisation, that
                 overcomes these criticisms. It then presents the
                 results of the revised test when applied to Geb, which
                 indicate that this system does indeed exhibit
                 open-ended evolution.",
  notes =        "Author claims this is a GP but {"}genetic
                 programming{"} appears nowhere in it",

Genetic Programming entries for Alastair D Channon