412 citations · 1.6k across the 66 of their papers we have counts for
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math.NA2016★ 12 cited
Improved stochastic trace estimation using mutually unbiased bases
J. K. Fitzsimons, M. A. Osborne, S. J. Roberts +1
We examine the problem of estimating the trace of a matrix when given access to an oracle which computes for an input vector . We make use of the basis vecto…
astro-ph.IM2016★ 114 cited
GPz: Non-stationary sparse Gaussian processes for heteroscedastic uncertainty estimation in photometric redshifts
Ibrahim A. Almosallam, Matt J. Jarvis, Stephen J. Roberts
The next generation of cosmology experiments will be required to use photometric redshifts rather than spectroscopic redshifts. Obtaining accurate and well-characterized photometri…