Simulated Evolution and Learning 9th International Conference, SEAL 2012, Hanoi, Vietnam, December 16-19, 2012. Proceedings - Bui, Lam Thu; Ong, Yew Soon; Hoai, Nguyen Xuan; Ishibuchi, Hisao; Suganthan, Ponnuthurai Nagaratnam (Springer Berlin Heidelberg : Imprint: Springer, 2012)