Representation and Structural Biases in CGP

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  author =       "Andrew J. Payne and Susan Stepney",
  title =        "Representation and Structural Biases in CGP",
  booktitle =    "2009 IEEE Congress on Evolutionary Computation",
  year =         "2009",
  editor =       "Andy Tyrrell",
  pages =        "1064--1071",
  address =      "Trondheim, Norway",
  month =        "18-21 " # may,
  organization = "IEEE Computational Intelligence Society",
  publisher =    "IEEE Press",
  isbn13 =       "978-1-4244-2959-2",
  file =         "P019.pdf",
  DOI =          "doi:10.1109/CEC.2009.4983064",
  abstract =     "An evolutionary algorithm automatically discovers
                 suitable solutions to a problem, which may lie anywhere
                 in a large search space of candidate solutions. In the
                 case of Genetic Programming, this means performing an
                 efficient search of all possible computer programs
                 represented as trees. Exploration of the search space
                 appears to be constrained by structural mechanisms that
                 exist in Genetic Programming as a consequence of using
                 trees to represent solutions. As a result, programs
                 with certain structures are more likely to be evolved,
                 and others extremely unlikely. We investigate whether
                 the graph representation used in Cartesian Genetic
                 Programming causes an analogous biasing effect,
                 imposing natural limitations on the class of solution
                 structures that are likely to be evolved.
                 Representation bias and structural bias are identified:
                 the rarer {"}regular{"} structures appear to be easier
                 to evolve than more common {"}irregular{"} ones.",
  keywords =     "genetic algorithms, genetic programming, cartesian
                 genetic programming",
  notes =        "CEC 2009 - A joint meeting of the IEEE, the EPS and
                 the IET. IEEE Catalog Number: CFP09ICE-CDR",

Genetic Programming entries for Andrew J Payne Susan Stepney