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Open AccessArticle

Temporal Drivers of Liking Based on Functional Data Analysis and Non-Additive Models for Multi-Attribute Time-Intensity Data of Fruit Chews

by Carla Kuesten 1,* and Jian Bi 2
1
Amway, Ada, MI 49355, USA
2
Sensometrics Research and Service, Richmond, VA 23236, USA
*
Author to whom correspondence should be addressed.
Foods 2018, 7(6), 84; https://doi.org/10.3390/foods7060084
Received: 30 April 2018 / Revised: 24 May 2018 / Accepted: 30 May 2018 / Published: 3 June 2018
(This article belongs to the Special Issue Analysis of Sensory Properties in Foods)
Conventional drivers of liking analysis was extended with a time dimension into temporal drivers of liking (TDOL) based on functional data analysis methodology and non-additive models for multiple-attribute time-intensity (MATI) data. The non-additive models, which consider both direct effects and interaction effects of attributes to consumer overall liking, include Choquet integral and fuzzy measure in the multi-criteria decision-making, and linear regression based on variance decomposition. Dynamics of TDOL, i.e., the derivatives of the relative importance functional curves were also explored. Well-established R packages ‘fda’, ‘kappalab’ and ‘relaimpo’ were used in the paper for developing TDOL. Applied use of these methods shows that the relative importance of MATI curves offers insights for understanding the temporal aspects of consumer liking for fruit chews. View Full-Text
Keywords: relative importance of attributes to liking; multicollinearity; temporal drivers of liking (TDOL); functional data analysis; Choquet integral; fuzzy measure; multi-criteria decision-making; Shapley value; interaction indices; LMG statistic; multi-attribute time-intensity (MATI) data; fruit chews relative importance of attributes to liking; multicollinearity; temporal drivers of liking (TDOL); functional data analysis; Choquet integral; fuzzy measure; multi-criteria decision-making; Shapley value; interaction indices; LMG statistic; multi-attribute time-intensity (MATI) data; fruit chews
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Kuesten, C.; Bi, J. Temporal Drivers of Liking Based on Functional Data Analysis and Non-Additive Models for Multi-Attribute Time-Intensity Data of Fruit Chews. Foods 2018, 7, 84.

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