Search Results for author: Sumeetpal S. Singh

Found 7 papers, 3 papers with code

Multilevel Bayesian Deep Neural Networks

no code implementations24 Mar 2022 Neil K. Chada, Ajay Jasra, Kody J. H. Law, Sumeetpal S. Singh

In this article we consider Bayesian inference associated to deep neural networks (DNNs) and in particular, trace-class neural network (TNN) priors which were proposed by Sell et al. [39].

Bayesian Inference Uncertainty Quantification

Trace-class Gaussian priors for Bayesian learning of neural networks with MCMC

1 code implementation20 Dec 2020 Torben Sell, Sumeetpal S. Singh

We also implement examples in Bayesian Reinforcement Learning to automate tasks from data and demonstrate, for the first time, stability of MCMC to mesh refinement for these type of problems.

Online Particle Smoothing with Application to Map-matching

1 code implementation8 Dec 2020 Samuel Duffield, Sumeetpal S. Singh

We introduce a novel method for online smoothing in state-space models that utilises a fixed-lag approximation to overcome the well known issue of path degeneracy.

Methodology Applications

Coupled conditional backward sampling particle filter

1 code implementation15 Jun 2018 Anthony Lee, Sumeetpal S. Singh, Matti Vihola

This complements the earlier findings in the literature for conditional particle filters, which assume the number of particles to grow (super)linearly in terms of the time horizon.

Computation Probability Primary 65C05, secondary 60J05, 65C35, 65C40

Tracking multiple moving objects in images using Markov Chain Monte Carlo

no code implementations17 Mar 2016 Lan Jiang, Sumeetpal S. Singh

A new Bayesian state and parameter learning algorithm for multiple target tracking (MTT) models with image observations is proposed.

Image Generation

Bayesian tracking and parameter learning for non-linear multiple target tracking models

no code implementations8 Oct 2014 Lan Jiang, Sumeetpal S. Singh, Sinan Yildirim

We propose a new Bayesian tracking and parameter learning algorithm for non-linear non-Gaussian multiple target tracking (MTT) models.

An Online Expectation-Maximisation Algorithm for Nonnegative Matrix Factorisation Models

no code implementations11 Jan 2014 Sinan Yildirim, A. Taylan Cemgil, Sumeetpal S. Singh

In this paper we formulate the nonnegative matrix factorisation (NMF) problem as a maximum likelihood estimation problem for hidden Markov models and propose online expectation-maximisation (EM) algorithms to estimate the NMF and the other unknown static parameters.

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