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

• Autores: Klaus Langohr, Guadalupe Gómez Melis, Guillermo Hough
• Localización: Sort: Statistics and Operations Research Transactions, ISSN 1696-2281, Vol. 37, Nº. 2, 2013, págs. 175-188
• Idioma: inglés
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• Resumen

  • 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.