نتایج جستجو برای: mcmc

تعداد نتایج: 4784  

2017
Ahmed Mustafa Gen Nishida Ismaïl Saadi Mario Cools Jacques Teller

This paper investigates the potential of a cellular automata (CA) model based on logistic regression (logit) and Markov Chain Monte Carlo (MCMC) to simulate the dynamics of urban growth. The model assesses urbanization likelihood based on (i) a set of urban development driving forces (calibrated based on logit) and (ii) the land-use of neighboring cells (calibrated based on MCMC). An innovative...

2015
Weikun May

We implement a parallel MCMC method based on the ensemble samplers proposed by Jonathan Goodman and Jonathan Weare [1]. The new algorithm has several advantages over standard MCMC method. We made some numerical experiments and test the efficiency and strong/weak scalability of the parallel method. The parallel algorithm we implement is based on the MCMC hammer [2]. 0.

Journal: :Journal of Open Source Software 2019

2008
Jeffrey S. Rosenthal

We review recent work concerning optimal proposal scalings for Metropolis-Hastings MCMC algorithms, and adaptive MCMC algorithms for trying to improve the algorithm on the fly.

2015
Chris Whidden Frederick A. Matsen

In order to gain an understanding of the effectiveness of phylogenetic Markov chain Monte Carlo (MCMC), it is important to understand how quickly the empirical distribution of the MCMC converges to the posterior distribution. In this article, we investigate this problem on phylogenetic tree topologies with a metric that is especially well suited to the task: the subtree prune-and-regraft (SPR) ...

Journal: :Journal of Computational and Graphical Statistics 2022

Journal: :Journal of The Royal Statistical Society Series B-statistical Methodology 2022

Abstract The use of heuristics to assess the convergence and compress output Markov chain Monte Carlo can be sub-optimal in terms empirical approximations that are produced. Typically a number initial states attributed ‘burn in’ removed, while remainder is ‘thinned’ if compression also required. In this paper, we consider problem retrospectively selecting subset states, fixed cardinality, from ...

Journal: :IEEE Access 2022

Autoencoders gained popularity in the deep learning revolution given their ability to compress data and provide dimensionality reduction. Although prominent methods have been used enhance autoencoders, need robust uncertainty quantification remains a challenge. This has addressed with variational autoencoders so far. Bayesian inference via Markov Chain Monte Carlo (MCMC) sampling faced several ...

2009
Matthew J. Heaton James G. Scott

This paper is a review of computational strategies for Bayesian shrinkage and variable selection in the linear model. Our focus is less on traditional MCMC methods, which are covered in depth by earlier review papers. Instead, we focus more on recent innovations in stochastic search and adaptive MCMC, along with some comparatively new research on shrinkage priors. One of our conclusions is that...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید