Search Results for author: George De Ath

Found 9 papers, 7 papers with code

Context-Aware Generative Models for Prediction of Aircraft Ground Tracks

no code implementations26 Sep 2023 Nick Pepper, George De Ath, Marc Thomas, Richard Everson, Tim Dodwell

These models are, therefore, agnostic to the intentions of the pilots and ATCOs, which can have a significant effect on the observed trajectory, particularly in the lateral plane.

Decision Making Trajectory Prediction

MBORE: Multi-objective Bayesian Optimisation by Density-Ratio Estimation

1 code implementation31 Mar 2022 George De Ath, Tinkle Chugh, Alma A. M. Rahat

In this work we present MBORE: multi-objective Bayesian optimisation by density-ratio estimation, and compare it to BO across a range of synthetic and real-world benchmarks.

Bayesian Optimisation Density Ratio Estimation

How Bayesian Should Bayesian Optimisation Be?

1 code implementation3 May 2021 George De Ath, Richard Everson, Jonathan Fieldsend

FBBO using EI with an ARD kernel leads to the best performance in the noise-free setting, with much less difference between combinations of BO components when the noise is increased.

Bayesian Optimisation Gaussian Processes

Asynchronous ε-Greedy Bayesian Optimisation

1 code implementation15 Oct 2020 George De Ath, Richard M. Everson, Jonathan E. Fieldsend

Batch Bayesian optimisation (BO) is a successful technique for the optimisation of expensive black-box functions.

Bayesian Optimisation Thompson Sampling

$ε$-shotgun: $ε$-greedy Batch Bayesian Optimisation

1 code implementation5 Feb 2020 George De Ath, Richard M. Everson, Jonathan E. Fieldsend, Alma A. M. Rahat

Bayesian optimisation is a popular, surrogate model-based approach for optimising expensive black-box functions.

Bayesian Optimisation

Greed is Good: Exploration and Exploitation Trade-offs in Bayesian Optimisation

1 code implementation28 Nov 2019 George De Ath, Richard M. Everson, Alma A. M. Rahat, Jonathan E. Fieldsend

The performance of acquisition functions for Bayesian optimisation to locate the global optimum of continuous functions is investigated in terms of the Pareto front between exploration and exploitation.

Active Learning Bayesian Optimisation

Part-based Tracking by Sampling

no code implementations22 May 2018 George De Ath, Richard M. Everson

We propose a novel part-based method for tracking an arbitrary object in challenging video sequences.

Object

Visual Object Tracking: The Initialisation Problem

1 code implementation3 May 2018 George De Ath, Richard Everson

This BB may contain a large number of background pixels in addition to the object and can lead to parts-based tracking algorithms initialising their object models in background regions of the BB.

Image Matting Missing Labels +2

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