Results 1 to 10 of about 1,906,785 (292)

Genome-Wide Association Study Based on Random Regression Model Reveals Candidate Genes Associated with Longitudinal Data in Chinese Simmental Beef Cattle [PDF]

open access: yesAnimals, 2021
Body weight (BW) is an important longitudinal trait that directly described the growth gain of bovine in production. However, previous genome-wide association study (GWAS) mainly focused on the single-record traits, with less attention paid to ...
Lili Du   +9 more
doaj   +2 more sources

A Random Regression Model Based on a Single-Step Method for Improving the Genomic Prediction Accuracy of Residual Feed Intake in Pigs [PDF]

open access: yesFrontiers in Genetics, 2022
Residual feed intake (RFI) is considered as a measurement of feed efficiency, which is greatly related to the growth performance in pigs. Daily feeding records can be obtained from automatic feeders.
Ye Wang   +11 more
doaj   +2 more sources

Random Ensemble MARS: Model Selection in Multivariate Adaptive Regression Splines Using Random Forest Approach

open access: yesJournal of New Theory, 2022
Multivariate Adaptive Regression Splines (MARS) is a supervised learning model in machine learning, not obtained by an ensemble learning method. Ensemble learning methods are gathered from samples comprising hundreds or thousands of learners that serve ...
Mehmet Ali Cengiz, Dilek Sabancı
doaj   +1 more source

Model-based random forests for ordinal regression [PDF]

open access: yesThe International Journal of Biostatistics, 2020
AbstractWe study and compare several variants of random forests tailored to prognostic models for ordinal outcomes. Models of the conditional odds function are employed to understand the various random forest flavours. Existing random forest variants for ordinal outcomes, such as Ordinal Forests and Conditional Inference Forests, are evaluated in the ...
Buri, Muriel, Hothorn, Torsten
openaire   +3 more sources

Genetic analysis of litter size and number of kids born alive across parities in Spanish goat breeds using a random regression model

open access: yesItalian Journal of Animal Science, 2021
Genetic parameters of litter size (LS) and number of kids born alive (NBA) were estimated across parities in Florida and Payoya goat breeds using a threshold random regression model (RRM).
Chiraz Ziadi   +5 more
doaj   +1 more source

Validation of single-step genomic BLUP random regression test-day models and SNP effects analysis on milk yield in French Saanen goats

open access: yesJournal of Dairy Science, 2023
: The shape of the lactation curve is linked to an animal's health, feed requirements, and milk production throughout the year. Random regression models (RRM) are widely used for genetic evaluation of total milk production throughout the lactation and ...
M. Arnal   +3 more
doaj   +1 more source

Estimation of genetic parameters and trends for production traits of dairy cattle in Thailand using a multiple-trait multiple-lactation test day model [PDF]

open access: yesAsian-Australasian Journal of Animal Sciences, 2020
Objective The objective of this study was to estimate the genetic parameters and trends for milk, fat, and protein yields in the first three lactations of Thai dairy cattle using a 3-trait,-3-lactation random regression test-day model.
Sayan Buaban   +3 more
doaj   +1 more source

Genetic Analysis of Persistency for Milk Fat Yield in Iranian Buffaloes (Bubalus bubalis)

open access: yesFrontiers in Genetics, 2021
This study aimed to estimate heritabilities and genetic trends for different persistency measures for milk fat yield and their genetic correlations with 270-day milk yield in Iranian buffaloes.
Mohammad Ali Nazari   +3 more
doaj   +1 more source

Age-dependent genetic and environmental variance of semen quality in Nordic Holstein bulls

open access: yesJournal of Dairy Science, 2023
: The aim of this study was to estimate genetic and environmental parameters, across bull's age, for semen quality traits including pre- and postcryopreservation semen concentration, sperm motility, and sperm viability as well as ejaculate volume and ...
Y. Salimiyekta   +3 more
doaj   +1 more source

Random partition models with regression on covariates [PDF]

open access: yesJournal of Statistical Planning and Inference, 2010
Many recent applications of nonparametric Bayesian inference use random partition models, i.e. probability models for clustering a set of experimental units. We review the popular basic constructions. We then focus on an interesting extension of such models.
Muellner, Peter, Quintana, Fernando
openaire   +6 more sources

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