نتایج جستجو برای: prior distribution

تعداد نتایج: 835108  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم پایه 1394

چکیده در این پایان نامه ضمن معرفی توزیع وایبل، برآوردگر درستنمایی ماکزیمم و بیز پارامتر مقیاس توزیع وایبل با داده های سانسور شده را با استفاده از توزیع پیشین جفری و توزیع پیشین جفری تعمیم یافته تحت توابع میانگین مربع خطا و میانگین درصد خطا محاسبه و با یکدیگر مقایسه شده اند. در پایان ضمن مقایسه کارایی برآوردگرها نتیجه می شود که پارامتر برآورد شده توزیع وایبل بدست آمده از روش بیز با توزیع پیشین ...

Journal: :پژوهش های رشد و توسعه اقتصادی 0
محمد نبی شهیکی تاش استادیار گروه اقتصاد دانشگاه سیستان و بلوچستان صابر مولایی دانشجوی دکترای اقتصاد دانشگاه اصفهان خدیجه دینارزهی دانشجوی کارشناسی ارشد اقتصاد دانشگاه سیستان و بلوچستان

the main objective of this paper is to examine the impact of economic growth on coefficient of cardinal welfare in iran’s economy. hence, we employ the bayesian approach and the estimation of forward and backward density functions in order to measure the effect of economic growth spillovers on the social welfare. the paper has applied the gibbs sampling algorithm which is a rigorous tool for fo...

2001
Andrew Gelman Walter W. Piegorsch

Journal: :international journal of industrial engineering and productional research- 0
fernando antonio moala [email protected]

the weibull distribution has been widely used in survival and engineering reliability analysis. in life testing experiments is fairly common practice to terminate the experiment before all the items have failed, that means the data are censored. thus, the main objective of this paper is to estimate the reliability function of the weibull distribution with uncensored and censored data by using b...

ژورنال: پژوهش های ریاضی 2017
esfandiari, h, golalizadeh, m, nasiri, p, shadrokh, a,

Historically, various methods were suggested for the estimation of Bernoulli and Binomial distributions parameter. One of the suggested methods is the Bayesian method, which is based on employing prior distribution. Their sound selection on parameter space play a crucial role in reducing posterior Bayesian estimator error. At times, large scale of the parametric changes on parameter space bring...

This paper considers the testing of fuzzy hypotheses on the basis of a Bayesian approach. For this, using a notion of prior distribution with interval or fuzzy-valued parameters, we extend a concept of posterior probability of a fuzzy hypothesis. Some of its properties are also put into investigation. The feasibility and effectiveness of the proposed methods are also cla...

Journal: :The Annals of Mathematical Statistics 1965

The Weibull distribution has been widely used in survival and engineering reliability analysis. In life testing experiments is fairly common practice to terminate the experiment before all the items have failed, that means the data are censored. Thus, the main objective of this paper is to estimate the reliability function of the Weibull distribution with uncensored and censored data by using B...

Journal: :Journal of Statistical Computation and Simulation 2014

ژورنال: پژوهش های ریاضی 2017
chinipardaz, r, falahifard, b, habibelahitabar, s,

 This article is concerned with the comparison P-value and Bayesian measure for the variance of Normal distribution with mean as nuisance paramete. Firstly, the P-value of null hypothesis is compared with the posterior probability when we used a fixed prior distribution and the sample size increases. In second stage the P-value is compared with the lower bound of posterior probability when the ...

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