Their Colours and Their Forms

Their Colours and their Forms has been curated by John Strachan, Brian Thompson and myself. It is an exhibition that shows new work by artists, composers and creative writers responding imaginatively to Wordsworth’s life and poetry and the manuscripts of William and Dorothy Wordsworth displayed in the Museum. For this exhibition, my work was shown alongside the manuscripts of Dorothy and William Wordsworth held by the trust, and as a direct result of this project, four new pieces have been acquired by the Wordsworth Trust and are now on permanent display next to the Journals of Dorothy Wordsworth that my work reference

The Cyberciege Information Assurance Virtual Laboratory

Workshop on Education in Computer Security (WECS) 7CyberCIEGE enhances information assurance education and training through the use of computer gaming techniques. In the CyberCIEGE virtual world, users spend virtual money to operate and defend their networks, and can watch the consequences of their choices, while under attack. These tutorial sessions will introduce CyberCIEGE to educators and information assurance training professionals. The IA training tool is provide to develop new scenarios

Improving the performance of cascade correlation neural networks on multimodal functions

Intrinsic qualities of the cascade correlation algorithm make it a popular choice for many researchers wishing to utilize neural networks. Problems arise when the outputs required are highly multimodal over the input domain. The mean squared error of the approximation increases significantly as the number of modes increases. By applying ensembling and early stopping, we show that this error can be reduced by a factor of three. We also present a new technique based on subdivision that we call patchworking. When used in combination with early stopping and ensembling the mean improvement in error is over 10 in some cases

Compressive and Noncompressive Power Spectral Density Estimation from Periodic Nonuniform Samples

This paper presents a novel power spectral density estimation technique for band-limited, wide-sense stationary signals from sub-Nyquist sampled data. The technique employs multi-coset sampling and incorporates the advantages of compressed sensing (CS) when the power spectrum is sparse, but applies to sparse and nonsparse power spectra alike. The estimates are consistent piecewise constant approximations whose resolutions (width of the piecewise constant segments) are controlled by the periodicity of the multi-coset sampling. We show that compressive estimates exhibit better tradeoffs among the estimator's resolution, system complexity, and average sampling rate compared to their noncompressive counterparts. For suitable sampling patterns, noncompressive estimates are obtained as least squares solutions. Because of the non-negativity of power spectra, compressive estimates can be computed by seeking non-negative least squares solutions (provided appropriate sampling patterns exist) instead of using standard CS recovery algorithms. This flexibility suggests a reduction in computational overhead for systems estimating both sparse and nonsparse power spectra because one algorithm can be used to compute both compressive and noncompressive estimates.Comment: 26 pages, single spaced, 9 figure

A study of early stopping, ensembling, and patchworking for cascade correlation neural networks

The constructive topology of the cascade correlation algorithm makes it a popular choice for many researchers wishing to utilize neural networks. However, for multimodal problems, the mean squared error of the approximation increases significantly as the number of modes increases. The components of this error will comprise both bias and variance and we provide formulae for estimating these values from mean squared errors alone. We achieve a near threefold reduction in the overall error by using early stopping and ensembling. Also described is a new subdivision technique that we call patchworking. Patchworking, when used in combination with early stopping and ensembling, can achieve an order of magnitude improvement in the error. Also presented is an approach for validating the quality of a neural network’s training, without the explicit use of a testing dataset

Tracking changes in everyday experiences of disability and disability sport within the context of the 2012 London Paralympics

The 2012 Paralympics was the biggest ever, the most accessible and best attended in its 64-year history. The Paralympics and ideas of disability associated with the Games provide significant opportunity for reflection on how far societal opinions, attitudes and behaviour have changed regarding disability. In 2012 – the first ever “legacy games” – an explicit aim of the Paralympics was to “transform the perception of disabled people in society”, (Channel 4), and use sport to contribute to “a better world for all people with a disability” (IPC 2011). The 2012 Games therefore came with a social agenda: to challenge the current perceptions many people have about disability and disability sport. Within this report – commissioned by the UK’s Paralympic broadcaster, Channel 4 – we consider everyday experiences of disability and disability sport within the context of the London 2012 Paralympics and televised coverage of the Games. The analysis is based 140 in-depth interviews that took place in the UK over a period of eighteen months, during the lead up to, and immediately after, the Games: between January 2011 and September 2012. Embedded in the lifeworld of our participants, we ask whether the 2012 Paralympics was successful in changing perceptions of disability

Chronic leptomeningitis and spinal intradural mass secondary to Alternaria infection in a patient with ventriculoperitoneal shunt

Fungal infection following placement of ventriculostomy or ventriculoperitoneal (VP) shunt is uncommon. We report the first case of Alternaria related central nervous system (CNS) shunt infection in a patient with CNS ependymoma manifesting as leptomeningitis and a spinal intradural mass. This case illustrates the diagnostic and management challenges

Listening Project

In an effort to better serve Southeast and Coastal Georgia, The Coastal Rivers Water Planning & Policy Center tapped the thoughts of several key stakeholders on water issues in our region.The Center was created in 2001 with a continuing mission to "assist policymakers in the formulation of policy designs to best manage sustainable economic growth and natural resource conservation via water planning, research, education and technical assistance." In order to best accomplish this mission, it is necessary for us to engage stakeholders in our region to determine those issues of critical importance.The Listening Project is designed to identify the perspective of water users throughout the Coastal Rivers Region by listening to the actual concerns and ideas for improvement of those who have a stake in the water future of the region. Using this information, the Center can better meet the research needs of stakeholders in the region.The objective of the first round of listening sessions is to identify issues, and not to take a quantitative measure of any given constituency. Thus, the results of the process do not lend themselves to conclusions that any one constituency has a certain viewpoint, but rather gives an idea for the type of issues that arise when representatives of one particular constituency gather to discuss their hopes and fears around the future of water use in Coastal Georgia region.The balance of this paper is organized in the following way: In Section II we discuss the process used in this first round of five listening sessions. In Section III we report the verbatim ideas of the participants in each of the five sessions. Section IV reports the same verbatim ideas put forward by the participants, but the ideas are organized according to dominant themes emerging from the sessions, where various constituencies' ideas on each theme are easily readable in the same place. Finally, in Section V we offer concluding remarks and describe our plans for Phase II of the project. Working Paper Number 2005-00

The Page curve from the entanglement membrane

We study entanglement dynamics in toy models of black hole information built out of chaotic many-body quantum systems, by utilising a coarse-grained description of entanglement dynamics in such systems known as the `entanglement membrane'. We show that in these models the Page curve associated to the entropy of Hawking radiation arises from a transition in the entanglement membrane around the Page time, in an analogous manner to the change in quantum extremal surfaces that leads to the Page curve in semi-classical gravity. We also use the entanglement membrane prescription to study the Hayden-Preskill protocol, and demonstrate how information initially encoded in the black hole is rapidly transferred to the radiation around the Page time. Our results relate recent developments in black hole information to generic features of entanglement dynamics in chaotic many-body quantum systems.Comment: 22 pages + appendices, lots of figure