Multisensory Design of Electric Shavers Based on Kansei Engineering and Artificial Neural Networks

Table 2

QTTI prediction model results.

Items	Categories	Traditional/fashion-forward			Soft/harder-edged			Cheap/premium			Sophisticated/minimalistic
		C	P	S	C	P	S	C	P	S	C	P	S
Head X1	Flat single blade	−0.395	0.613	2	−0.613	0.801	1	−0.452	0.702	2	0.264	0.823	1
	Flat multiple blades	0.249			0.315			0.406			−0.219
	Round single blade	−0.541			−0.230			−0.459			0.265
	Round multiple blades	−0.089			−0.226			−0.367			0.255
	Round three blades	0.236			0.272			0.308			−0.201
	Round five blades	0.134			0.477			0.324			−0.337
Neck X2	Narrow neck	0.328	0.526	3	0.275	0.504	4	0.107	0.434	5	−0.286	0.604	3
	Average neck	0.250			0.023			−0.051			0.043
	Broad neck	−0.106			0.020			0.044			0.075
	Neckless and seamless connection	−0.212			−0.174			−0.156			0.085
	Neckless connection of two parts	0.228			0.224			0.335			−0.016
Handle X3	Narrow streamlined	0.498	0.719	1	0.488	0.653	2	−0.504	0.801	1	−0.294	0.753	2
	Average streamlined	0.119			0.007			−0.302			−0.153
	Board streamlined	−0.192			−0.164			−0.291			0.102
	Long cylindrical	−0.249			0.433			0.819			0.238
	Short cylindrical	−0.364			−0.233			0.874			0.260
	Rounded rectangle	−0.350			−0.220			−0.207			0.137
	Angular	0.657			0.018			0.976			−0.251
Switch X4	Round	−0.088	0.438	5	−0.046	0.203	6	−0.087	0.264	6	0.100	0.428	5
	Rectangle	−0.206			−0.054			0.315			0.030
	Square-like	−0.096			−0.005			−0.014			−0.124
	Oval-like	0.228			0.060			−0.020			−0.024
	Triangle-like	0.299			0.100			0.052			0.016
Switch activation X5	Slip-type	0.092	0.145	7	0.057	0.125	7	0.104	0.157	7	−0.233	0.572	4
	Touch-tonality type	−0.028			−0.017			−0.032			0.0711
Tonality X6	High	−0.119	0.358	6	−0.168	0.393	5	−0.238	0.577	4	0.0241	0.165	7
	Medium	−0.108			−0.007			−0.192			0.023
	Low	0.264			0.195			0.499			−0.055
Sound quality X7	Stable and powerful	0.276	0.489	4	0.272	0.612	3	0.357	0.588	3	0.072	0.295	6
	Fluctuating and soft	−0.215			−0.208			−0.273			−0.055
Constant term (C)		3.876			3.401			3.633			4.224
Complex correlation coefficient (R)		0.932			0.957			0.934			0.938
Coefficient of determination (R^2)		0.868			0.917			0.872			0.879

Notes: C, category score; P, partial correlation coefficient; S, sort.