Improved estimation of Weibull Parameters considering unreliability uncertainties

Fernández Fernández, Antonio and Vázquez López, Manuel (2012). Improved estimation of Weibull Parameters considering unreliability uncertainties. "IEEE Transactions on Reliability", v. 61 (n. 1); pp. 32-40. ISSN 0018-9529. https://doi.org/10.1109/TR.2011.2168652.

Description

Title: Improved estimation of Weibull Parameters considering unreliability uncertainties
Author/s:
  • Fernández Fernández, Antonio
  • Vázquez López, Manuel
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on Reliability
Date: March 2012
ISSN: 0018-9529
Volume: 61
Subjects:
Freetext Keywords: Heteroscedastic regression, life tests, Weibull distributions, weighted least squares
Faculty: E.U.I.T. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

We propose a linear regression method for estimating Weibull parameters from life tests. The method uses stochastic models of the unreliability at each failure instant. As a result, a heteroscedastic regression problem arises that is solved by weighted least squares minimization. The main feature of our method is an innovative s-normalization of the failure data models, to obtain analytic expressions of centers and weights for the regression. The method has been Monte Carlo contrasted with Benard?s approximation, and Maximum Likelihood Estimation; and it has the highest global scores for its robustness, and performance.

More information

Item ID: 16569
DC Identifier: http://oa.upm.es/16569/
OAI Identifier: oai:oa.upm.es:16569
DOI: 10.1109/TR.2011.2168652
Official URL: http://ieeexplore.ieee.org/xpls/icp.jsp?arnumber=6036203
Deposited by: Memoria Investigacion
Deposited on: 18 Oct 2013 15:56
Last Modified: 21 Apr 2016 16:54
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