Statistical Distance Based Deterministic Offspring Selection in SMC Methods

no code implementations • 23 Dec 2022 • Oskar Kviman, Hazal Koptagel, Harald Melin, Jens Lagergren

Over the years, sequential Monte Carlo (SMC) and, equivalently, particle filter (PF) theory has gained substantial attention from researchers.

VaiPhy: a Variational Inference Based Algorithm for Phylogeny

1 code implementation • 1 Mar 2022 • Hazal Koptagel, Oskar Kviman, Harald Melin, Negar Safinianaini, Jens Lagergren

The exponential size of the tree space is, unfortunately, a substantial obstacle for Bayesian phylogenetic inference using Markov chain Monte Carlo based methods since these rely on local operations.

Density Estimation Variational Inference

Multiple Importance Sampling ELBO and Deep Ensembles of Variational Approximations

1 code implementation • 22 Feb 2022 • Oskar Kviman, Harald Melin, Hazal Koptagel, Víctor Elvira, Jens Lagergren

In variational inference (VI), the marginal log-likelihood is estimated using the standard evidence lower bound (ELBO), or improved versions as the importance weighted ELBO (IWELBO).

Density Estimation Variational Inference