نتایج جستجو برای: Bayesian approach

تعداد نتایج: 1348475  

Journal: :poultry science journal 2015
salehinasab m latifi m zerehdaran s alijani s

the objective of the present study was to estimate heritability values for some performance and egg quality traits of native fowl in isfahan breeding center using reml and bayesian approaches. the records were about 51521 and 975 for performance and egg quality traits, respectively. at the first step, variance components were estimated for body weight at hatch (bw0), body weight at 8 weeks of a...

Journal: :علوم دامی ایران 0
فاطمه حسینی استادیار، گروه آمار، دانشکدة ریاضی، آمار و علوم کامپیوتر، دانشگاه سمنان، ایران امید کریمی استادیار، گروه آمار، دانشکدة ریاضی، آمار و علوم کامپیوتر، دانشگاه سمنان، ایران نیلوفر جواهری دانشجوی سابق کارشناسی ارشد، گروه آمار، دانشکدة ریاضی، آمار و علوم کامپیوتر، دانشگاه سمنان، ایران

animal models are used to model the observations of animal performance that are genetically dependent.these models are considered as generalized linear mixed models and the genetic correlation structure of data is considered through random effects of breeding values. one goal of the mentioned models is to estimate variance components. in this research, an approximate bayesian approach presented...

Journal: :international journal of information, security and systems management 0

text classification is an important research field in information retrieval and text mining. the main task in text classification is to assign text documents in predefined categories based on documents’ contents and labeled-training samples. since word detection is a difficult and time consuming task in persian language, bayesian text classifier is an appropriate approach to deal with different...

Journal: :iranian journal of psychiatry 0
maryam rahmati department of biostatistics, university of social welfare and rehabilitation sciences, tehran, iran mehdi rahgozar department of biostatistics, university of social welfare and rehabilitation sciences, tehran, iran farbod fadaei department of psychiatry, university of social welfare and rehabilitation sciences, tehran, iran enayatollah bakhshi department of biostatistics, university of social welfare and rehabilitation sciences, tehran, iran leila cheraghi department of biostatistics, university of social welfare and rehabilitation sciences, tehran, iran

objectives : schizophrenia patients often experience relapses once and even more with no limit on number of relapses. the time among relapses are rarely considered in studies. the aim of this study was to identify some risk factors of time to elapses in schizophrenic patients with recurrent events model in survival analysis. methods : in a retrospective longitudinal study, the medical records o...

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...

Text Classification is an important research field in information retrieval and text mining. The main task in text classification is to assign text documents in predefined categories based on documents’ contents and labeled-training samples. Since word detection is a difficult and time consuming task in Persian language, Bayesian text classifier is an appropriate approach to deal with different...

Text Classification is an important research field in information retrieval and text mining. The main task in text classification is to assign text documents in predefined categories based on documents’ contents and labeled-training samples. Since word detection is a difficult and time consuming task in Persian language, Bayesian text classifier is an appropriate approach to deal with different...

Journal: :nephro-urology monthly 0
shima younespour department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, ir iran abbas rahimi foroushani department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, ir iran elham maraghi department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, ir iran zohreh rostami nephrology and urology research center, baqiyatallah university of medical sciences, tehran, ir iran behzad einollahi nephrology and urology research center, baqiyatallah university of medical sciences, tehran, ir iran mohammad reza eshraghian department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, ir iran; department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, ir iran. tel: +98-2188989127

conclusions graft failure is more likely to occur in patients with higher serum creatinine levels. results there was a positive association between the serum creatinine level and graft failure (hr = 5.13, p < 0.001). a one unit increase in the serum creatinine level suggests an increased risk of graft failure of up to 5.13 times. the serum creatinine level significantly decreased over time (95%...

ژورنال: اندیشه آماری 2021

Spatial count data is usually found in most sciences such as environmental science, meteorology, geology and medicine. Spatial generalized linear models based on poisson (poisson-lognormal spatial model) and binomial (binomial-logitnormal spatial model) distributions are often used to analyze discrete count data in which spatial correlation is observed. The likelihood function of these models i...

Journal: Poultry Science Journal 2015
Alijani S Latifi M Salehinasab M Zerehdaran S

The objective of the present study was to estimate heritability values for some performance and egg quality traits of native fowl in Isfahan breeding center using REML and Bayesian approaches. The records were about 51521 and 975 for performance and egg quality traits, respectively. At the first step, variance components were estimated for body weight at hatch (BW0), body weight at 8 weeks of a...

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