A Rough-Sets Approach to Kansei Evaluation Modeling and Design Support

Abstract

This paper proposes a Kansei modeling technique by using the Rough-sets Theory based on a set of evaluation data for Kutani-ware coffee cups. Kutani-ware is a famous traditional craft that is a very important traditional industry in Japan. However, it has been shrinking recently because of the changes in lifestyle or the appearance of more functional modern products. To reactivate this industry by developing and recommending products that attract people’s feelings, this study develops a modeling technique for identifying relations between design and feeling by obtaining some if-and-then rules. An important contribution of the paper is that the proposed technique can suggest new designs by analyzing customers’ Kansei requirements, which are not used in the evaluation experiment. This makes the recommendation successful by determining people’s Kansei into data instead of attempts.