Local linear smoothing to estimate accelerated lifetime model with censoring and truncation López Montoya, Antonio Jesús Gámiz Pérez, María Luz Martínez Miranda, María Dolores Semi-parametric Nonparametric Survival function Local linear Water supply system Bootstrap A nonparametric accelerated failure time (AFT) model is considered to evaluate the dependability measures of a water supply system laid in a city of the Mediterranean Sea. To do it, a set of breakdown data of sections of pipe of the system is available. Unlike the usual methods that assume a parametric family for the underlying lifetime, we propose an AFT model with an unspecified distribution for the underlying lifetime. To carry out the model fitting we suggest a two-stage procedure. Firstly, we estimate the influence of certain factors over the lifetime of the system. Secondly, we propose modern and flexible statistical tools based on counting processes to construct a smooth estimate the reliability measure of a specific system. We prove the good asymptotic properties of the estimator. 2025-01-13T11:22:48Z 2025-01-13T11:22:48Z 2015 journal article López-Montoya, A. J., Gámiz-Pérez, M. L., & Martínez-Miranda, M. D. (2015). Local linear smoothing to estimate accelerated lifetime model with censoring and truncation. Applied Mathematical Modelling, 39(16), 4630-4645. https://hdl.handle.net/10481/98954 10.1016/j.apm.2015.03.063 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier