Swarm and Evolutionary Computation International Symposia, SIDE 2012 and EC 2012, Held in Conjunction with ICAISC 2012, Zakopane, Poland, April 29-May 3, 2012. Proceedings - Rutkowski, Leszek; Korytkowski, Marcin; Scherer, Rafał; Tadeusiewicz, Ryszard; Zadeh, Lotfi A.; Zurada, Jacek M. (Springer Berlin Heidelberg, 2012)