1 code implementation • 12 Feb 2021 • Samuel Wiqvist, Jes Frellsen, Umberto Picchini
We introduce the sequential neural posterior and likelihood approximation (SNPLA) algorithm.
1 code implementation • 23 Jul 2019 • Samuel Wiqvist, Andrew Golightly, Ashleigh T. Mclean, Umberto Picchini
Stochastic differential equation mixed-effects models (SDEMEMs) are flexible hierarchical models that are able to account for random variability inherent in the underlying time-dynamics, as well as the variability between experimental units and, optionally, account for measurement error.
Computation Methodology
1 code implementation • 29 Jan 2019 • Samuel Wiqvist, Pierre-Alexandre Mattei, Umberto Picchini, Jes Frellsen
We present a novel family of deep neural architectures, named partially exchangeable networks (PENs) that leverage probabilistic symmetries.
1 code implementation • 15 Jun 2018 • Samuel Wiqvist, Umberto Picchini, Julie Lyng Forman
In our accelerated algorithm the calculations in the "second stage" of the delayed-acceptance scheme are reordered in such as way that we can obtain a significant speed-up in the MCMC sampling, when the evaluation of the likelihood function is computationally intensive.
Computation