Evolution of cooperative behavior among heterogeneous agents with different strategy representations in an iterated prisoner's dilemma game. - Hiroyuki Ohyanagi; Yoshihiko Wakamatsu; Yusuke Nakashima; Yusuke Nojima; Hisao Ishibuchi (Artif. Life Robotics, 2009)

How to Choose Solutions for Local Search in Multiobjective Combinatorial Memetic Algorithms. - Hisao Ishibuchi; Yasuhiro Hitotsuyanagi; Yoshihiko Wakamatsu; Yusuke Nojima (PPSN (1), 2010)