Autor segons l'article: de Andres-Sanchez, Jorge; Gonzalez-Vila Puchades, Laura;
Departament: Gestió d'Empreses
Autor/s de la URV: De Andrés Sànchez, Jorge
Paraules clau: Lee–carter model Lee-carter model Fuzzy-random modelling Fuzzy-random modeling Fuzzy regression Fuzzy numbers
Resum: The Lee-Carter model is a useful dynamic stochastic model to represent the evolution of central mortality rates throughout time. This model only considers the uncertainty about the coefficient related to the mortality trend over time but not to the age-dependent coefficients. This paper proposes a fuzzy-random extension of the Lee-Carter model that allows quantifying the uncertainty of both kinds of parameters. As it is commonplace in actuarial literature, the variability of the time-dependent index is modeled as an ARIMA time series. Likewise, the uncertainty of the age-dependent coefficients is also quantified, but by using triangular fuzzy numbers. The consideration of this last hypothesis requires developing and solving a fuzzy regression model. Once the fuzzy-random extension has been introduced, it is also shown how to obtain some variables linked with central mortality rates such as death probabilities or life expectancies by using fuzzy numbers arithmetic. It is simultaneously shown the applicability of our developments with data of Spanish male population in the period 1970-2012. Finally we make a comparative assessment of our method with alternative Lee-Carter model estimates on 16 Western Europe populations. (c) 2019 The Authors. Published by Atlantis Press SARL.
Àrees temàtiques: Interdisciplinar General computer science Engenharias iv Computer science, interdisciplinary applications Computer science, artificial intelligence Computer science (miscellaneous) Computer science (all) Computational mathematics Ciência da computação
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 18756883
Adreça de correu electrònic de l'autor: jorge.deandres@urv.cat
Identificador de l'autor: 0000-0002-7715-779X
Data d'alta del registre: 2023-02-18
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.atlantis-press.com/journals/ijcis/125913525
Referència a l'article segons font original: International Journal Of Computational Intelligence Systems. 12 (2): 775-794
Referència de l'ítem segons les normes APA: de Andres-Sanchez, Jorge; Gonzalez-Vila Puchades, Laura; (2019). A Fuzzy-Random Extension of the Lee-Carter Mortality Prediction Model. International Journal Of Computational Intelligence Systems, 12(2), 775-794. DOI: 10.2991/ijcis.d.190626.001
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.2991/ijcis.d.190626.001
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2019
Tipus de publicació: Journal Publications