نتایج جستجو برای: Bayesian Estimation

تعداد نتایج: 332744  

Journal: :international journal of pediatrics 0
hamid reza khalkhali associate professor in biostatistics, inpatient’s safety research center, department of biostatistics and epidemiology, urmia university of medical sciences, urmia, iran. shahsanam gheibi associate professor of pediatric gastroenterology, maternal and childhood obesity research center, urmia university of medical sciences, urmia, iran. rasool gharaaghaji associate professor in biostatistics, department of health and preventive medicine, urmia university of medical sciences, urmia, iran. alireza didarloo associate professor in health education and promotion, solid tumor research center, department of health and preventive medicine, urmia university of medical sciences, urmia, iran.

background often, there is no access to sufficient sample size to estimate the prevalence using the method of direct estimator in all areas. the aim of this study was to compare small area’s bayesian method and direct method in estimating the prevalence of steatosis in obese and overweight children. materials and methods: in this cross-sectional study, was conducted on 150 overweight and obese ...

Journal: :journal of the iranian statistical society 0
gholamhossein gholami department of mathematics, faculty of sciences, urmia university, iran

the problems of sequential change-point have several important applications in quality control, signal processing, and failure detection in industry and finance. we discuss a bayesian approach in the context of statistical process control: at an unknown time $tau$, the process behavior changes and the distribution of the data changes from p0 to p1. two cases are considered: (i) p0 and p1 are fu...

ژورنال: اندیشه آماری 2021

‎Whenever approximate and initial information about the unknown parameter of a distribution is available, the shrinkage estimation method can be used to estimate it. In this paper, first the $ E $-Bayesian estimation of the parameter of inverse Rayleigh distribution under the general entropy loss function is obtained. Then, the shrinkage estimate of the inverse Rayleigh distribution parameter i...

Journal: :journal of biostatistics and epidemiology 0
abbas rahimi-feroushani department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran mohammad chehrazi department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran and department of epidemiology and reproductive health, reproductive epidemiology research center, royan institute, tehran, iran keramat nourijelyani department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran reza omani-samani department of epidemiology and reproductive health, reproductive epidemiology research center, royan institute, tehran, iran

b a c k g r o u n d & aim: the aim of the current study was to investigate the advantages of bayesian method in comparison to traditional methods to detect best antioxidant in freezing of human male gametes. methods  &  materials:   semen  samples  were  obtained  from  40  men  whose  sperm  had  normal criteria. a part of each sample was separated without antioxidant  as fresh and the remaini...

Background Often, there is no access to sufficient sample size to estimate the prevalence using the method of direct estimator in all areas. The aim of this study was to compare small area’s Bayesian method and direct method in estimating the prevalence of steatosis in obese and overweight children. Materials and Methods: In this cross-sectional study, was conducted on 150 overweight and obese ...

Ali Mohammad-Djafari,

In this paper, first a great number of inverse problems which arise in instrumentation, in computer imaging systems and in computer vision are presented. Then a common general forward modeling for them is given and the corresponding inversion problem is presented. Then, after showing the inadequacy of the classical analytical and least square methods for these ill posed inverse problems, a Baye...

Journal: :مهندسی برق و الکترونیک ایران 0
ali mohammad-djafari

in this paper, first a great number of inverse problems which arise in instrumentation, in computer imaging systems and in computer vision are presented. then a common general forward modeling for them is given and the corresponding inversion problem is presented. then, after showing the inadequacy of the classical analytical and least square methods for these ill posed inverse problems, a baye...

Journal: :Journal of the Society of Naval Architects of Japan 1985

Abstract: This paper proposes a novel scheme for multi-static passive radar processing, based on soft-input soft-output processing and Bayesian sparse estimation. In this scheme, each receiver estimates the probability of target presence based on its received signal and the prior information received from a central processor. The resulting posterior target probabilities are transmitted to the c...

ژورنال: پژوهش های ریاضی 2019
Nasiri, Parviz, Zaman, Roshanak,

Estimation of statistical distribution parameter is one of the important subject of statistical inference. Due to the applications of Lomax distribution in business, economy, statistical science, queue theory, internet traffic modeling and so on, in this paper, the parameters of Lomax distribution under type II censored samples using maximum likelihood and Bayesian methods are estimated. Wherea...

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