Search Results for author: Alma A. M. Rahat

Found 6 papers, 4 papers with code

Does mapping elites illuminate search spaces? A large-scale user study of MAP--Elites applied to human--AI collaborative design

no code implementations30 Jan 2024 Sean P. Walton, Ben J. Evans, Alma A. M. Rahat, James Stovold, Jakub Vincalek

Although there is some evidence that the MAP-Elites provide higher-quality individual recommendations, neither study provides convincing evidence that these recommendations have a more positive influence on the design process than simply a random selection of designs.

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

Evaluating Mixed-Initiative Procedural Level Design Tools using a Triple-Blind Mixed-Method User Study

1 code implementation15 May 2020 Sean P. Walton, Alma A. M. Rahat, James Stovold

A rigorous user study was designed which compared the experiences of designers using the mixed-initiative tool to designers who were given a tool which provided completely random level suggestions.

$ε$-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

Bayesian Search for Robust Optima

no code implementations25 Apr 2019 Nicholas D. Sanders, Richard M. Everson, Jonathan E. Fieldsend, Alma A. M. Rahat

We propose a method for robust optimisation using Bayesian optimisation to find a region of design space in which the expensive function's performance is relatively insensitive to the inputs whilst retaining a good quality.

Bayesian Optimisation

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