Search Results for author: Richard G. Everitt

Found 6 papers, 1 papers with code

Ensemble MCMC: Accelerating Pseudo-Marginal MCMC for State Space Models using the Ensemble Kalman Filter

1 code implementation5 Jun 2019 Christopher Drovandi, Richard G. Everitt, Andrew Golightly, Dennis Prangle

Particle Markov chain Monte Carlo (pMCMC) is now a popular method for performing Bayesian statistical inference on challenging state space models (SSMs) with unknown static parameters.

Computation Methodology

Bootstrapped synthetic likelihood

no code implementations15 Nov 2017 Richard G. Everitt

The main idea in ABC and SL is to, for different values of $\theta$ (usually chosen using a Monte Carlo algorithm), build estimates of the likelihood based on simulations from the model conditional on $\theta$.

Bayesian Inference

Marginal sequential Monte Carlo for doubly intractable models

no code implementations12 Oct 2017 Richard G. Everitt, Dennis Prangle, Philip Maybank, Mark Bell

Bayesian inference for models that have an intractable partition function is known as a doubly intractable problem, where standard Monte Carlo methods are not applicable.

Bayesian Inference

Delayed acceptance ABC-SMC

no code implementations7 Aug 2017 Richard G. Everitt, Paulina A. Rowińska

Approximate Bayesian computation (ABC) is now an established technique for statistical inference used in cases where the likelihood function is computationally expensive or not available.

An ABC interpretation of the multiple auxiliary variable method

no code implementations27 Apr 2016 Dennis Prangle, Richard G. Everitt

We show that the auxiliary variable method (M{\o}ller et al., 2006; Murray et al., 2006) for inference of Markov random fields can be viewed as an approximate Bayesian computation method for likelihood estimation.

Bayesian model comparison with un-normalised likelihoods

no code implementations1 Apr 2015 Richard G. Everitt, Adam M. Johansen, Ellen Rowing, Melina Evdemon-Hogan

Models for which the likelihood function can be evaluated only up to a parameter-dependent unknown normalising constant, such as Markov random field models, are used widely in computer science, statistical physics, spatial statistics, and network analysis.

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