Results 41 to 50 of about 54,345 (310)

Estimation for coefficient of variation of an extension of the exponential distribution under type-II censoring scheme

open access: yesOpen Physics, 2017
The coefficient of variation [CV] has several applications in applied statistics. So in this paper, we adopt Bayesian and non-Bayesian approaches for the estimation of CV under type-II censored data from extension exponential distribution [EED].
Bakoban Rana A.
doaj   +1 more source

MCMC genome rearrangement [PDF]

open access: yesBioinformatics, 2003
Abstract Motivation: As more and more genomes have been sequenced, genomic data is rapidly accumulating. Genome-wide mutations are believed more neutral than local mutations such as substitutions, insertions and deletions, therefore phylogenetic investigations based on inversions, transpositions and inverted transpositions are less ...
openaire   +2 more sources

Augmentation schemes for particle MCMC [PDF]

open access: yesStatistics and Computing, 2015
Particle MCMC involves using a particle filter within an MCMC algorithm. For inference of a model which involves an unobserved stochastic process, the standard implementation uses the particle filter to propose new values for the stochastic process, and MCMC moves to propose new values for the parameters.
Paul Fearnhead, Loukia Meligkotsidou
openaire   +4 more sources

A Classical and Bayesian Approach for Parameter Estimation in Structural Equation Models

open access: yesJournal of New Theory, 2020
Structural Equation Models (SEMs) with latent variables provide a general framework for modelling relationships in multivariate data. Although SEMs are most commonly used in studies involving intrinsically latent variables, such as happiness, quality of ...
Naci Murat, Mehmet Ali Cengiz
doaj  

Disputes of the senses in the ways of inhabiting the world. A conceptual proposal to (re) think the habitat in intercultural terms

open access: yesNuevo Itinerario, 2021
The article that we present here is part of a research / extension process that lasted for more than two years in the Puna and Chaco of Salta, in northern Argentina, with significant interaction with the Kolla de Hurcuro and Wichí de El peoples.
Facundo Gonzalez
doaj   +1 more source

Adaptive Metropolis-coupled MCMC for BEAST 2 [PDF]

open access: yesPeerJ, 2020
With ever more complex models used to study evolutionary patterns, approaches that facilitate efficient inference under such models are needed. Metropolis-coupled Markov chain Monte Carlo (MCMC) has long been used to speed up phylogenetic analyses and to
Nicola F. Müller, Remco R. Bouckaert
doaj   +2 more sources

Decayed MCMC Filtering

open access: yesCoRR, 2012
Filtering---estimating the state of a partially observable Markov process from a sequence of observations---is one of the most widely studied problems in control theory, AI, and computational statistics. Exact computation of the posterior distribution is generally intractable for large discrete systems and for nonlinear continuous systems, so a good ...
Bhaskara Marthi   +3 more
openaire   +3 more sources

Environmental stratification and genotype recommendation toward the soybean ideotype: a Bayesian approach

open access: yesCrop Breeding and Applied Biotechnology, 2021
The genotype × environment (G×E) interaction plays an essential role in phenotypic expression and can lead to difficulties in genotypes recommendation.
Leonardo Lopes Bhering   +7 more
doaj  

Optimization assisted MCMC

open access: yesCoRR, 2017
Markov Chain Monte Carlo (MCMC) sampling methods are widely used but often encounter either slow convergence or biased sampling when applied to multimodal high dimensional distributions. In this paper, we present a general framework of improving classical MCMC samplers by employing a global optimization method.
Ricky Fok, Aijun An, Xiaogang Wang 0007
openaire   +2 more sources

ENHANCING VOLATILITY MODELING WITH LOG-LINEAR REALIZED GARCH-CJ: EVIDENCE FROM THE TOKYO STOCK PRICE INDEX

open access: yesBarekeng
This study compares the Log-linear Realized GARCH (LRG) and its extension with Continuous and Jump components (LRG-CJ) in modeling the volatility of financial assets, using daily data from the Tokyo Stock Price Index (TOPIX) over 2004–2011.
Didit Budi Nugroho   +2 more
doaj   +1 more source

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