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Bayes Estimation Of The Inverse Weibu Distribution’s Parameters And Its Application In Reliability

Posted on:2013-02-27Degree:MasterType:Thesis
Country:ChinaCandidate:C G ZhongFull Text:PDF
GTID:2230330374452638Subject:Applied Mathematics
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The inverse weibull distribution has the ability to model failure rates,which are quitecommon in biological and reliability studies.In this paper on the basis of the Bayesiantheory I discussed the Bayes and E-Bayes estimations of the inverse Weibull distributionscale parameter. This paper, used Bayesian parameters estimation theory, studied theestimations of inverse weibull distributions’ scale parameter, including:(1)the Bayesestimation theory,(2) E-Bayes estimation,(3) the maximum likelihood estimation.1.Baesd on the composite LINEX symmetric loss function, using gamma distributionas the prior distribution, I mainly studied the scale parameter’s Bayes and E-Bayesestimations of a derogatory inverse Weibull distribution2. Under the entropy loss function, I studied the two-parameter inverse Weibulldistribution scale parameter’s Bayes estimation and its maximum likelihood estimation.And using the numerical analysis I carries on the quality comparison of the Bayesestimation and the maximum likelihood estimation.3. Under q-symmetric entropy loss function, I study the two-parameter inverse Weibulldistribution reliability R’s Bayes estimation and its maximum likelihood estimation.Numerical analysis to verify rationality and superiority of Bayes estimation and maximumlikelihood estimation.
Keywords/Search Tags:maximum likelihood estimation, inverse Weibull distribution, reliabilityfunction, optimal benign
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