Consumers’ Kansei Needs Clustering Method for Product Emotional Design Based on Numerical Design Structure Matrix and Genetic Algorithms

Table 3

Computing results according to different number of clusters.

Number of clusters	Elapsed time	Converged generation	Max fitness
2	50.196708	33	47.2487
3	26.156143	135	60.2140
4	33.05028	128	69.3339
5	41.888425	149	78.2695
6	52.731830	142	82.2049
7	56.553871	168	85.3748
8	63.927597	109	81.6808
9	71.302712	151	88.3222
10	78.391867	166	87.6516
11	85.253257	166	87.6000
12	94.667694	182	88.1333