id: 06095254 dt: a an: 06095254 au: Machado, Penousal; Correia, João; Romero, Juan ti: Expression-based evolution of faces. so: Machado, Penousal (ed.) et al., Evolutionary and biologically inspired music, sound, art and design. First international conference, EvoMUSART 2012, Málaga, Spain, April 11‒13, 2012. Proceedings. Berlin: Springer (ISBN 978-3-642-29141-8/pbk). Lecture Notes in Computer Science 7247, 187-198 (2012). py: 2012 pu: Berlin: Springer la: EN cc: ut: evolutionary art; automatic fitness assignment; face detection ci: li: doi:10.1007/978-3-642-29142-5_17 ab: Summary: The combination of a classifier system with an evolutionary image generation engine is explored. The framework is instantiated using an off-the-shelf face detection system and a general purpose, expression-based, genetic programming engine. By default, the classifier returns a binary output, which is inadequate to guide evolution. By retrieving information provided by intermediate results of the classification task, it became possible to develop a suitable fitness function. The experimental results show the ability of the system to evolve images that are classified as faces. A subjective analysis also reveals the unexpected nature and artistic potential of the evolved images. rv: