abstract = "We discuss an approach of incorporating interactively
learned consensus sequences (ILCS) in genetic
programming (GP) for efficient evolution of simulated
Snakebot situated in a challenging environment. ILCS
introduce a biased mutation in GP via probabilistic
context sensitive grammar, in which the probabilities
of applying the production rules with multiple
right-hand side alternatives depend on the grammatical
context. The distribution of these probabilities is
learned interactively from the syntax of the Snakebots,
exhibiting behavioural traits that according to the
human observer are relevant for the emergence of
ability to overcome obstacles. Because at the earlier
stages of evolution these behavioral traits are not
necessarily pertinent to the best performing (i.e.
fastest) Snakebots, the user feedback provides the
evolution with an additional insight about the
promising areas in the fitness landscape. Empirical
results verify that employing ILCS improves the
efficiency of GP in that the evolved Snakebots are
faster than those obtained via canonical GP.",
notes = "CEC 2007 - A joint meeting of the IEEE, the EPS, and
the IET.