Abstract
Interactive Evolutionary Computation (IEC) is a useful method for Kansei designing because it does not require any quantitative functions for optimizing systems. IEC optimizes the system based on intuitive human evaluation. User of the system with the IEC needs to evaluate directly a lot of objects that are presented by that system. Consequently the user has a problem with being distressed by fatigue. So we propose a method of evaluation that is a simple pair comparison with tournament style. In the experimental result, it is declared that the proposal method possesses ability for optimizing systems as well as the conventional IEC method. Furthermore, we execute questionnaire survey about usability of the tournament evaluation by using two interactive evolutionary computing systems with image and sound. As a result, it is confirmed that the proposed method is a useful interface because it can reduce user's fatigue with relation to evaluation.
