abstract = "We present a new mechanism for preserving phenotypic
behavioural diversity in Genetic Programming. We
provide a real-world case study for hedge fund
portfolio optimization, and experimental results on
real-world data that indicate the importance of
phenotypic behavioural diversity both in achieving
higher fitness and in improving the robustness of the
GP population for continuous learning.",
notes = "GECCO-2009 A joint meeting of the eighteenth
international conference on genetic algorithms
(ICGA-2009) and the fourteenth annual genetic
programming conference (GP-2009).