Search Results for author: Marko Järvenpää

Found 8 papers, 2 papers with code

Approximate Bayesian inference from noisy likelihoods with Gaussian process emulated MCMC

no code implementations8 Apr 2021 Marko Järvenpää, Jukka Corander

We present a framework for approximate Bayesian inference when only a limited number of noisy log-likelihood evaluations can be obtained due to computational constraints, which is becoming increasingly common for applications of complex models.

Bayesian Inference Bayesian Optimisation +1

A Bayesian model of acquisition and clearance of bacterial colonization

no code implementations27 Nov 2018 Marko Järvenpää, Mohamad R. Abdul Sater, Georgia K. Lagoudas, Paul C. Blainey, Loren G. Miller, James A. McKinnell, Susan S. Huang, Yonatan H. Grad, Pekka Marttinen

Bacterial populations that colonize a host play important roles in host health, including serving as a reservoir that transmits to other hosts and from which invasive strains emerge, thus emphasizing the importance of understanding rates of acquisition and clearance of colonizing populations.

Efficient acquisition rules for model-based approximate Bayesian computation

no code implementations3 Apr 2017 Marko Järvenpää, Michael U. Gutmann, Arijus Pleska, Aki Vehtari, Pekka Marttinen

We propose to compute the uncertainty in the ABC posterior density, which is due to a lack of simulations to estimate this quantity accurately, and define a loss function that measures this uncertainty.

Bayesian Inference Bayesian Optimisation +1

Gaussian process modeling in approximate Bayesian computation to estimate horizontal gene transfer in bacteria

no code implementations20 Oct 2016 Marko Järvenpää, Michael Gutmann, Aki Vehtari, Pekka Marttinen

Approximate Bayesian computation (ABC) can be used for model fitting when the likelihood function is intractable but simulating from the model is feasible.

Model Selection

Cannot find the paper you are looking for? You can Submit a new open access paper.