Search Results for author: Andrew Webb

Found 5 papers, 3 papers with code

A Unified Theory of Diversity in Ensemble Learning

1 code implementation10 Jan 2023 Danny Wood, Tingting Mu, Andrew Webb, Henry Reeve, Mikel Luján, Gavin Brown

We present a theory of ensemble diversity, explaining the nature of diversity for a wide range of supervised learning scenarios.

Ensemble Learning Open-Ended Question Answering

HAWKS: Evolving Challenging Benchmark Sets for Cluster Analysis

2 code implementations13 Feb 2021 Cameron Shand, Richard Allmendinger, Julia Handl, Andrew Webb, John Keane

Here, we argue that synthetic datasets must continue to play an important role in the evaluation of clustering algorithms, but that this necessitates constructing benchmarks that appropriately cover the diverse set of properties that impact clustering algorithm performance.

Benchmarking Clustering +1

Accelerating CS in Parallel Imaging Reconstructions Using an Efficient and Effective Circulant Preconditioner

no code implementations4 Oct 2017 Kirsten Koolstra, Jeroen van Gemert, Peter Börnert, Andrew Webb, Rob Remis

Results: The designed circulant preconditioner reduces the number of iterations required in the conjugate gradient method by almost a factor of~5.

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