Quantile estimation of the rejection distribution of food products integrating assessor values and interval-censored consumer data

Fitting parametric survival models with interval-censored data is a common task in survival analysis and implemented in many statistical software packages. Here, we present a novel approach to fit such models if the values on the scale of interest are measured with error. Random effects ANOVA models...

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Bibliographic Details
Authors: Langohr, Klaus|||0000-0001-7075-9192, Gómez Melis, Guadalupe|||0000-0003-4252-4884, Hough, Guillermo
Format: article
Publication Date:2013
Country:España
Institution:Universitat Autònoma de Barcelona
Repository:Dipòsit Digital de Documents de la UAB
Language:English
OAI Identifier:oai:ddd.uab.cat:117891
Online Access:https://ddd.uab.cat/record/117891
Access Level:Open access
Keyword:Interval-censored data
Maximization of the likelihood function
Parametric survival model
Sensory shelf-life data
Description
Summary:Fitting parametric survival models with interval-censored data is a common task in survival analysis and implemented in many statistical software packages. Here, we present a novel approach to fit such models if the values on the scale of interest are measured with error. Random effects ANOVA models are used to account for the measurement errors and the likelihood function of the parametric survival model is maximized with numerical methods. An illustration is provided with a real data set on the rejection of yogurt as a function of its acid taste.