A study of assessors' performance using graphical methods

被引：19

作者：

Couronne, T ^{[1
]}

机构：

[1] TEPRAL, Ctr Rech Branche Boissons, Grp DANONE, F-67037 Strasbourg, France

来源：

FOOD QUALITY AND PREFERENCE | 1997年 / 8卷 / 5-6期

关键词：

assessor performances; Principal Component Analysis; interaction; Analysis of Variance; classification;

D O I：

10.1016/S0950-3293(97)00025-6

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The performance of a sensory panel is studied through analysis of variance and in particular the assessors x products interaction. A graphic can illustrate the partitioning of the interaction by a sum of distances between the assessors. The decomposition of the sum of the product effect plus the interaction allows a vector representation of the assessors. These vectors are classified with an original method in order to point out homogeneous sub-panels. The new classification allows aggregation of groups only when all the correlations between assessors are greater than a threshold. (C) 1997 Elsevier Science Ltd. All rights reserved.

引用

页码：359 / 365

页数：7