Results 21 to 30 of about 1,828,929 (311)

Simple reparameterization to improve convergence in linear mixed models

open access: yesActa Agriculturae Slovenica, 2010
Slow convergence and mixing are one of the main problems of Markov chain Monte Carlo (McMC) algorithms applied to mixed models in animal breeding. Poor convergence is to a large extent caused by high posterior correlation between variance components and ...
Gregor GORJANC   +3 more
doaj   +1 more source

Reproductive maturity and cone abundance vary with tree size and stand basal area for two widely distributed conifers

open access: yesEcosphere, 2020
Understanding potential limitations to tree regeneration is essential as rates of tree mortality increase in response to direct (extreme drought) and indirect (bark beetle outbreaks, wildfire) effects of a warming climate.
Robert A. Andrus   +3 more
doaj   +1 more source

Posterior-based proposals for speeding up Markov chain Monte Carlo [PDF]

open access: yesRoyal Society Open Science, 2019
Markov chain Monte Carlo (MCMC) is widely used for Bayesian inference in models of complex systems. Performance, however, is often unsatisfactory in models with many latent variables due to so-called poor mixing, necessitating the development of ...
C. M. Pooley   +3 more
doaj   +1 more source

Movement Patterns and Match Statistics in the National Rugby League Women's (NRLW) Premiership

open access: yesFrontiers in Sports and Active Living, 2021
As women's rugby league grows, the need for understanding the movement patterns of the sport is essential for coaches and sports scientists. The aims of the present study were to quantify the position-specific demographics, technical match statistics ...
Tim Newans   +7 more
doaj   +1 more source

Bayes factor between Student t and Gaussian mixed models within an animal breeding context

open access: yesGenetics Selection Evolution, 2008
The implementation of Student t mixed models in animal breeding has been suggested as a useful statistical tool to effectively mute the impact of preferential treatment or other sources of outliers in field data. Nevertheless, these additional sources of
García-Cortés Luis   +3 more
doaj   +1 more source

Assessment of cold stress tolerance in maize through quantitative trait locus, genome-wide association study and transcriptome analysis

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2021
Genome-wide association study (GWAS) has become a widely accepted strategy for decoding genotype phenotype associations in many species thanks to advances in next-generation sequencing (NGS) technologies.
Syed F.A. GILLANI   +7 more
doaj   +1 more source

Mixed Shock Models

open access: yesBernoulli, 2001
The author studies system lifetimes that are associated with a cumulative shock model as follows: The system fails when the cumulative damage exceeds some threshold, or when a single large shock occurs. \textit{H. Li} and the reviewer [Stochastic Processes Appl. 58, No. 2, 205-216 (1995; Zbl 0833.60088); Appl. Probab. 34, No.
openaire   +2 more sources

Invited review: A review of some commonly used meta-analysis methods in dairy science research

open access: yesJournal of Dairy Science
: Meta-analyses have become increasingly common, providing meaningful summaries of cumulative knowledge in the dairy science literature. Some of the corresponding meta-analytic techniques have been developed by knowledgeable dairy scientists, some of ...
R.J. Tempelman
doaj   +1 more source

Genomic Regions Associated With Gestation Length Detected Using Whole-Genome Sequence Data Differ Between Dairy and Beef Cattle

open access: yesFrontiers in Genetics, 2019
While many association studies exist that have attempted to relate genomic markers to phenotypic performance in cattle, very few have considered gestation length as a phenotype, and of those that did, none used whole genome sequence data from multiple ...
Deirdre C. Purfield   +3 more
doaj   +1 more source

Functional Additive Mixed Models [PDF]

open access: yesJournal of Computational and Graphical Statistics, 2015
26 pages, 8 ...
Scheipl, Fabian   +2 more
openaire   +3 more sources

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