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- Dafydd Evans, Antonia J. Jones, Wolfgang M. Schmidt
- Proceedings of the Royal Society of London…
- 2002

Let C be a compact convex body in R⊃ m and consider a set of points selected at random from C according to some well–behaved sampling distribution. We obtain an asymptotic expression for the positive… (More)

- Dafydd Evans, Antonia J. Jones
- Proceedings of the Royal Society of London…
- 2002

From a dataset of input–output vectors, the Gamma test estimates the variance of the noise on an output modulo any smooth model with bounded partial derivatives. We present a proof of the Gamma test… (More)

- Dafydd Evans
- 2002

- Dafydd Evans
- Proceedings of the Royal Society A: Mathematical…
- 2008

In practical data analysis, methods based on proximity (near-neighbour) relationships between sample points are important because these relations can be computed in time (n log n) as the number of… (More)

- Lang Fan, Christine L. Mumford, Dafydd Evans
- IEEE Congress on Evolutionary Computation
- 2009

The urban transit routing problem (UTRP) for public transport systems involves finding a set of efficient transit routes to meet customer demands. The UTRP is an NP-Hard, highly constrained,… (More)

- Dafydd Evans, Antonia J. Jones
- Proceedings of the Royal Society A: Mathematical…
- 2008

The aim of non-parametric regression is to model the behaviour of a response vector Y in terms of an explanatory vector X, based only on a finite set of empirical observations. This is usually… (More)

Abstract In a smooth input/output process y = f ( x ) , if the input data x ∈ R d is noise free and only the output data y is corrupted by noise, then a near optimal smooth model g ˆ will be a close… (More)

A method for removing trace amounts of contaminating hydrazine from pharmaceutical grade PVP. An aqueous solution of PVP is contacted with a gaseous stream containing ozone for a period of time… (More)

- Robert Bares, Dafydd Evans, Stephen M. Long
- IEEE Journal of Oceanic Engineering
- 2010

In sonar signal processing when selecting a threshold for detection, it is necessary to consider the noise in the signal to achieve the desired rates of detection and false alarm. The clutter… (More)

- Dafydd Evans
- 2005

When constructing non‐parametric models from noisy data, it is useful to have information regarding the statistical properties of the noise distribution. In many cases, such information is not… (More)