Abstract

The present communication considers a discrete dynamic measure of inaccuracy between two residual and past lifetime distributions. Under the assumption that the true distribution F and reference distribution G satisfy the proportional hazard model (PHM) and proportional reversed hazard model (PRHM), it has been shown that the proposed measures determines the lifetime distribution uniquely. A relation between Kerridge inaccuracy, residual inaccuracy and past inaccuracy has been explored.

Highlights

  • Let X and Y be two non-negative random variables representing time to failure of two systems with p.d.f. respectively f (x) and g(x)

  • Nanda and Paul (2006) have extended this to entropy of order β and have studied their properties. In this communication we propose and study the measures of dynamic inaccuracy, when the distributions P and Q are discrete domain, and satisfy proportional hazard model (PHM), refer to Cox (1959), or proportional reversed hazard model (PRHM), refer to Gupta and Gupta (2007)

  • Real world life time is either observed in discrete time points or it is measured by discrete quantities

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Summary

Introduction

Let X and Y be two non-negative random variables representing time to failure of two systems with p.d.f. respectively f (x) and g(x). The modification of Shannon’s entropy as a measure of uncertainty in residual lifetime distribution for discrete random variable has drawn attention of many researchers. As residual lifetime information measure in discrete domain and showed that H(P; j) uniquely determines the distribution function F(t) and characterized the same. Nanda and Paul (2006) have extended this to entropy of order β and have studied their properties In this communication we propose and study the measures of dynamic (residual and past both) inaccuracy, when the distributions P and Q are discrete domain, and satisfy proportional hazard model (PHM), refer to Cox (1959), or proportional reversed hazard model (PRHM), refer to Gupta and Gupta (2007).

Discrete Case Hazard Models
Discrete Residual Inaccuracy Measure and Characterization Problem
Discrete Past Inaccuracy Measure and Characterization Problem
Conclusion

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