Simple improvement of consumer fit in external preference mapping

被引:26
作者
Faber, NKM [1 ]
Mojet, J [1 ]
Poelman, AAM [1 ]
机构
[1] ATO, Agrotechnol Res Inst, NL-6700 AA Wageningen, Netherlands
关键词
preference mapping; sensory analysis; consumers; apples;
D O I
10.1016/S0950-3293(03)00011-9
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
In the common implementation of external preference mapping consumer preferences are fitted as polynomial functions of the first two principal components (PCs) of the sensory data. A major weakness of the method is the relatively small number of consumers that can be significantly fitted. Several researchers have proposed to improve the consumer fit by including higher-numbered PCs in the analysis. We have explored the possibility of including higher-numbered PCs while restricting the model choice to the simplest polynomial function, i.e. the (linear) vector model. In addition, we have developed a heuristic decision rule for determining the number of PCs to keep in the fit. A practical example is discussed where the consumer fit improved from 51% (two PCs, polynomial) to 80% (five PCs, vector). (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:455 / 461
页数:7
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