title: Guest editorial: special issue on selected papers from the European conference on genetic programming.
authors.affiliation: INESC-ID Lisboa, Instituto Superior Tecnico, Universidade Tecnica de Lisboa, Rua Alves Redol 9, 1000-029 Lisboa, Portugal.
authors.forename: Sara
authors.initials: S
authors.lastname: Silva
authors.affiliation: Biological Sciences and Institute for Bioinformatics and Evolutionary STudies (IBEST), University of Idaho, Moscow, ID 83844-0351, USA.
authors.forename: James A
authors.initials: JA
authors.lastname: Foster