On Estimation of Hazard Rate and Reversed Hazard Rate based on Transformations  
Author Chathuri Lakshika Jayasinghe


Co-Author(s) Panlop Zeephongsekul


Abstract Reliability concepts and measures are heavily used in the modern world to investigate characteristics of lifetime data. Hazard rate, mean residual life, reversed hazard rate and expected inactivity time are four highly regarded tools that are used in the process. They have been studied in depth over the years. This paper proposes a simple approach that makes use of relationships that exist between them to estimate these functions. The method involves fixed–design local polynomial estimators of reliability functions and their derivatives. Numerical examples show that this simple method provide good estimates for two popular parametric models in reliability.


Keywords Reliability functions, fixed-design nonparametric regression, local polynomial fitting
    Article #:  18124
Proceedings of the 18th ISSAT International Conference on Reliability and Quality in Design
July 26-28, 2012 - Boston, Massachusetts, U.S.A.