Hybrid Artificial Intelligent Systems 7th International Conference, HAIS 2012, Salamanca, Spain, March 28-30th, 2012. Proceedings, Part I - Corchado, Emilio; Snášel, Václav; Abraham, Ajith; Woźniak, Michał; Graña, Manuel; Cho, Sung-Bae (Springer Berlin Heidelberg, 2012)