نتایج جستجو برای: ii ridgeregression best linear unbiased prediction rrblup

تعداد نتایج: 1609722  

2017
Jae-Don Oh Chong-Sam Na Kyung-Do Park

OBJECTIVE This study was to determine the relationship between estimated breeding value and phenotype information after farrowing when juvenile selection was made in candidate pigs without phenotype information. METHODS After collecting phenotypic and genomic information for the total number of piglets born by Landrace pigs, selection accuracy between genomic breeding value estimates using ge...

2000
N. Balakrishnan E. Cramer U. Kamps N. Schenk

Abstract. In the model of progressive type II censoring, point and interval estimation as well as relations for single and product moments are considered. Based on two-parameter exponential distributions, maximum likelihood estimators (MLEs), uniformly minimum variance unbiased estimators (UMVUEs) and best linear unbiased estimators (BLUEs) are derived for both location and scale parameters. So...

Journal: :international journal of advanced biological and biomedical research 2014
jafar jamdar morad pasha eskandarinasab

in this research genetic and phenotypic parameters were estimated using linear and threshold models, for reproductive traits, data from 6 large industrial dairy herd of east azerbaijan province collected by agriculture jihad organization during 10 years (2001-2010). best linear unbiased predictions of traits breeding values were estimated using restricted maximum likelihood method by wombat sof...

‎Lindley distribution has received considerable attention in the statistical literature due to its simplicity‎. ‎In this paper‎, ‎we consider the problem of predicting the failure times of experimental units that are censored in a right-censored sample‎‎ when the underlying lifetime is Lindley distributed‎. ‎The maximum likelihood predictor‎, ‎the Bes...

2015
Jiangwei Xia Yang Wu Huizhong Fan Wengang Zhang Yuxin Song Lupei Zhang Xue Gao Yan Chen Junya Li Huijiang Gao

Genomic selection is an accurate and efficient method of estimating genetic merits by using high-density genome-wide single nucleotide polymorphisms (SNPs).In this study, we investigate an approach to increase the efficiency of genomic prediction by using genome-wide markers. The approach is a feature selection based on genomic best linear unbiased prediction (GBLUP),which is a statistical meth...

ژورنال: علوم زراعی ایران 2023

Knowledge of genes action on important traits and their breeding value is necessary to achieve high yielding cultivars in food crops. Molecular markers has eliminated the need for knowing the pedigree of genotypes for estimating Kiniship matrix required to estimate breeding values of taits of interest. In this research, 97 genotypes of maize were evaluated for 17 different agronomic triats usin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده علوم ریاضی 1388

تکنیک برآورد ناحیه کوچک به طور عمده متکی بر مدل های آمیخته با اثرهای تصادفی ناحیه ای می باشد. بر این مینی با استفاده از روش های متداول در برآورد پارامترها در مدل های آمیخته به دنبال یک برآورد برای ناحیه کوچک هستیم و در این میان به معرفی بهترین پیش بینی کننده ی خطی نااریب blup برای پارامتر مورد نظر ناحیه کوچک می پردازیم. اما در مقابل این رویکرد، رویکرد دیگری مبتنی بر توابع حساسیت و رگرسیون m- چن...

Journal: :Journal of Dairy Science 2021

Genetic groups, also called unknown or phantom parents are often used in dairy cattle genetic evaluations to account for selection that cannot be accounted by known relationships. With the advent of genomic evaluations, theory groups was extended so-called single-step BLUP (ssGBLUP). In short, can fitted ssGBLUP through regression effects, including them pedigree and computing adequate combined...

پایان نامه :0 1392

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

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