Results 21 to 30 of about 47,282 (299)
Bu araştırmada İvesi ırkı kuzularda doğum ağırlığına ait kalıtım derecesinin tahmininde baba familya sayısının etkisi araştırılmıştır. Doğum ağırlığına ait veriler 17 baş damızlık koça ait 1062 baş tekiz kuzudan elde edilmiştir.
Ahmet Öz
doaj +1 more source
Efficient ReML inference in variance component mixed models using a Min-Max algorithm.
Since their introduction in the 50's, variance component mixed models have been widely used in many application fields. In this context, ReML estimation is by far the most popular procedure to infer the variance components of the model.
Fabien Laporte +2 more
doaj +1 more source
Copula miss-specification in REML multivariate genetic animal model estimation
Background In animal genetics, linear mixed models are used to deal with genetic and environmental effects. The variance and covariance terms of these models are usually estimated by restricted maximum likelihood (REML), which provides unbiased ...
Tom Rohmer, Anne Ricard, Ingrid David
doaj +1 more source
Regularization for Generalized Additive Mixed Models by Likelihood-Based Boosting [PDF]
With the emergence of semi- and nonparametric regression the generalized linear mixed model has been expanded to account for additive predictors. In the present paper an approach to variable selection is proposed that works for generalized additive mixed
Groll, Andreas, Tutz, Gerhard
core +2 more sources
A new approach fits multivariate genomic prediction models efficiently
Background Fast, memory-efficient, and reliable algorithms for estimating genomic estimated breeding values (GEBV) for multiple traits and environments are needed to make timely decisions in breeding.
Alencar Xavier, David Habier
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Predicted Residual Error Sum of Squares of Mixed Models: An Application for Genomic Prediction. [PDF]
Genomic prediction is a statistical method to predict phenotypes of polygenic traits using high-throughput genomic data. Most diseases and behaviors in humans and animals are polygenic traits. The majority of agronomic traits in crops are also polygenic.
Xu, Shizhong
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Bayesian and average information restricted maximum likelihood (AI-REML) approaches were used to estimate variance components and genetic parameters of Wood’s lactation curve parameters of milk production traits in three lactations of Iranian Holstein ...
Keyvan Radjabalizadeh +3 more
doaj +1 more source
Derivative Computations and Robust Standard Errors for Linear Mixed Effects Models in lme4 [PDF]
While robust standard errors and related facilities are available in R for many types of statistical models, the facilities are notably lacking for models estimated via lme4.
Merkle, Edgar C., Wang, Ting
core +3 more sources
Penalized additive regression for space-time data: a Bayesian perspective [PDF]
We propose extensions of penalized spline generalized additive models for analysing space-time regression data and study them from a Bayesian perspective.
Fahrmeir, Ludwig +2 more
core +3 more sources
Differential Privacy Applications to Bayesian and Linear Mixed Model Estimation [PDF]
We consider a particular maximum likelihood estimator (MLE) and a computationally-intensive Bayesian method for differentially private estimation of the linear mixed-effects model (LMM) with normal random errors.
Abowd, John M. +2 more
core +3 more sources

