Comparison between Statistical and Lower / Upper Approximations Rough Sets Models for Beer Can Design and Prototype Evaluation

On the other hand, one of the core technologies in Kansei Engineering (KE) is to identify the relational rules between design elements of products and human evaluation data such as sense and feeling (Nagamachi, 1996). Rough set methods have been used to extract decision rules between human Kansei evaluation experimental data set and design elements (Nishino, 2001, 2003). The extracted rules would enable product designer to design the products fitted to the sense of human.