Search Results for author: John Aston

Found 4 papers, 3 papers with code

Accurate autocorrelation modeling substantially improves fMRI reliability

1 code implementation27 Nov 2017 Wiktor Olszowy, John Aston, Catarina Rua, Guy B. Williams

The reliability of task fMRI studies would increase with more accurate autocorrelation modeling.

Quantitative Methods

Hidden Talents of the Variational Autoencoder

1 code implementation16 Jun 2017 Bin Dai, Yu Wang, John Aston, Gang Hua, David Wipf

Variational autoencoders (VAE) represent a popular, flexible form of deep generative model that can be stochastically fit to samples from a given random process using an information-theoretic variational bound on the true underlying distribution.

Dimensionality Reduction

Divide-and-Conquer with Sequential Monte Carlo

3 code implementations19 Jun 2014 Fredrik Lindsten, Adam M. Johansen, Christian A. Naesseth, Bonnie Kirkpatrick, Thomas B. Schön, John Aston, Alexandre Bouchard-Côté

We propose a novel class of Sequential Monte Carlo (SMC) algorithms, appropriate for inference in probabilistic graphical models.

Monotonicity of Fitness Landscapes and Mutation Rate Control

no code implementations4 Sep 2012 Roman V. Belavkin, Alastair Channon, Elizabeth Aston, John Aston, Rok Krasovec, Christopher G. Knight

This theoretical result motivates our hypothesis that optimal mutation rate functions in such landscapes will increase when fitness decreases in some neighbourhood of an optimum, resembling the control functions derived in the geometric case.

Evolutionary Algorithms

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