Computational collective intelligence 9th International Conference, ICCCI 2017, Nicosia, Cyprus, September 27-29, 2017 : proceedings : part II - Nguyen, Ngoc Thanh 1963-; Papadopoulos, George A.; Jędrzejowicz, Piotr 1942-; Trawiński, Bogdan; Vossen, Gottfried 1955- (Springer, 2017)