How is latest development of particle markov chain monte carlo?
Best insight from top research papers
The latest development in Particle Markov Chain Monte Carlo (PMCMC) includes the introduction of advanced algorithms that provide powerful methods for joint Bayesian state and parameter inference in nonlinear/non-Gaussian state-space models . These methods have been shown to have improved mixing rates and are suitable for distributed and multi-core architectures . Additionally, there have been developments in scaling up PMCMC by expressing the target density in terms of basic uniform or standard normal random numbers, resulting in a more efficient hybrid sampler . These advancements have allowed for the analysis of larger and more complex models with a reduced computational burden.
Answers from top 5 papers
More filters
Papers (5) | Insight |
---|---|
Open access•Posted Content 4 Citations | The paper discusses a scalable approach to Particle Markov Chain Monte Carlo (PMCMC) that improves efficiency in Bayesian inference for non-linear and non-Gaussian state space models. |
The paper does not mention the latest development of particle Markov chain Monte Carlo. The paper discusses various MCMC algorithms and their applications in biostatistics. | |
Open access•Posted Content 13 Oct 2011 | The paper suggests alternatives to existing Particle Markov chain Monte Carlo (PMCMC) methods that are more robust to a low number of particles and a large number of observations. |
The paper introduces a new method called interacting particle Markov chain Monte Carlo (iPMCMC) which shows significant improvements in mixing rates compared to other PMCMC methods. | |
Open access•Posted Content | The paper discusses a new class of advanced particle Markov chain Monte Carlo algorithms and provides a new perspective on their foundations and mathematical analysis. It also presents quantitative estimates of the convergence properties of these models. |
Related Questions
What are some recent advancements in using Markov chains to model traffic networks?5 answersRecent advancements in using Markov chains to model traffic networks include the development of stochastic approaches for short-term traffic prediction. These approaches take into account the dynamic and stochastic nature of traffic flow by using Markov chain models and transition matrices. The models are calibrated using real-time traffic data and maximum likelihood estimation methods. Statistical properties such as mean, standard deviation, maximum, minimum, percentiles, and autocorrelations are used to evaluate the accuracy of the models. Additionally, artificial intelligence techniques, such as neural networks, have been applied to predict traffic flow in Markov chain models. These advancements have improved the ability to accurately predict traffic conditions in the near future, which is crucial for traffic management and trip decision making processes.
What is a markov chain?4 answersA Markov chain is a random process where the future state only depends on the current state and not on the past. It can be thought of as a special type of random walk on a directed graph. Markov chains have a well-defined limiting behavior in a statistical sense, even though they keep moving around. Different random walks or Markov chains on a finite directed graph can have one or more invariant (stationary) distributions, which are characterized by the cycles on the graph. Markov chains are widely used in probability theory and mathematical statistics to model real-world systems with uncertainty. They are sequences of random variables where the future value depends on the present value and is independent of the past. Markov chains are also applicable in machine learning and data mining, and their properties, such as eigenvalues and eigenvectors, are explored using tools from linear algebra and graph theory.
What is Monte Carlo simulation?4 answersMonte Carlo simulation is a powerful tool used to estimate solutions for quantitative problems by using statistical sampling techniques. It involves repeated simulations to solve complex problems and has applications in various scientific fields, including analytical development, light propagation in tissues, risk assessment, prediction and forecasting models, and estimation of elbow angles from EMG signals. The simulation method allows for the optimization of processes, such as laser-mediated therapies and microsurgeries, by modeling light propagation, energy deposition, and temperature distribution within tissues. It is efficient in simulation, estimation, and optimization, although it may have drawbacks such as low speed of execution. Monte Carlo simulation is widely used in quantitative research, particularly in Operations Research, to understand the impact of risk and uncertainty in prediction models. It can be used as a preliminary study for developing rehabilitation tools for post-stroke patients based on muscle signals.
How does montecarlo markov chains work?5 answersMonte Carlo Markov Chains (MCMC) are a powerful method for analyzing scientific data. MCMCs determine the probability distribution function of quantities of interest, such as model parameters, by repeatedly querying datasets used for their measurement. The resulting sequence of values forms a Markov chain that can be analyzed to find best-fit values and confidence intervals. MCMCs allow for the simultaneous estimation of parameters for multi-parametric models of any level of complexity, even in the presence of parameter correlation. Non-reversible, lifted MCMC algorithms, such as direction-sweep MCMC, can be applied to a wide range of Markov chains and have shorter mixing times compared to algorithms with random updates of directions. The theory of Markov chains provides the mathematical foundations for MCMCs, and the implementation of MCMCs includes algorithms like Metropolis-Hastings and convergence tests.
How does the montecarlo markov chain work?3 answersMarkov Chain Monte Carlo (MCMC) is a simulation technique used to find and sample from the posterior distribution of a model. MCMC algorithms generate a collection of samples by simulating a Markov chain, a type of discrete time stochastic process. These algorithms are widely used because they can handle complex distributions for which obtaining independent samples is difficult. The Metropolis algorithm is one of the most famous MCMC algorithms in stochastic theory. It draws samples sequentially as a Markov chain that is invariant with respect to the target distribution. The combination of Sequential Monte Carlo (SMC) with MCMC kernels allows for optimizing parameters in the MCMC kernels using information from the particle population. Invariance is a fundamental notion in MCMC, and there are various MCMC kernels that can be used as transition kernels in Feynman-Kac models.
How can Markov Chain Monte Carlo be used to estimate the parameters of a PH distribution?5 answersMarkov Chain Monte Carlo (MCMC) methods can be used to estimate the parameters of a PH distribution. MCMC simulation is a set of tools for estimating features of probability distributions. It generates observations representative of the target distribution and produces reliable outcomes. MCMC methods are used to fit a model and draw samples from the joint posterior distribution of the model parameters. Different MCMC algorithms, such as Gibbs sampling, Metropolis-Hastings algorithm, and Hamiltonian Monte Carlo, can be used depending on the model structure. Convergence of the chains can be assessed graphically using traceplots and diagnostic statistics. MCMC samplers like OpenBUGS and Stan are commonly used.