Systems dealing with personal information are legally required to satisfy the principle of data minimisation. Privacy-enhancing protocols use cryptographic primitives to minimise the amount of personal information exposed by communication. However, the complexity of these primitives and their interplay makes it hard for noncryptography experts to understand the privacy implications of their use...

The UK Sustainable Development Strategy requires that society makes prudent use of resources so as to protect the environment and at the same time maintain high and stable levels of economic growth and employment. The key to sustainable waste management is waste minimisation, the reduction of waste at source. Waste minimisation clubs have been a central feature of the UK program to encourage th...

In this paper, the Hopfield model of artificial neural networks called HANNs for finding some task allocations in multiple computer systems have been proposed. A multiobjective optimisation problem with two criteria has been considered. Resource constraints have been assumed, too. Both the cost of parallel program execution and the cost of computers have been minimised. Two models of neural net...

This paper considers conditions based on the restricted isometry constant (RIC) under which the solution of an underdetermined linear system with minimal ` norm, 0 < p ≤ 1, is guaranteed to be also the sparsest one. Specifically matrices are identified that have RIC, δ2m, arbitrarily close to 1/ √ 2 ≈ 0.707 where sparse recovery with p = 1 fails for at least one m-sparse vector. This indicates ...

The application of energy minimisation methods for stereo matching has been demonstrated to produce high quality disparity maps. However the majority of these methods are known to be computationally expensive, requiring minutes or even hours of computation. We propose a fast minimisation scheme that produces strongly competitive results for significantly reduced computation, requiring only a fe...

In this paper, we present a minimisation method for computing the ground state of systems of coupled Gross–Pitaevskii equations. Our approach relies on a spectral decomposition of the solution into Hermite basis functions. Inserting the spectral representation into the energy functional yields a constrained nonlinear minimisation problem for the coefficients. For its numerical solution, we empl...

We examine the payoffs to electrical interconnection between isolated systems considering minimisation of both costs and variability. We demonstrate that optimal interconnection portfolios cannot be derived analytically and must be simulated numerically. We present a mixed-integer linear programme which maximises payoff to interconnection and simulates the operation of stylised electricity syst...

Alternate cycling of sludge in aerobic, anoxic, and anaerobic regimes is a promising strategy that can reduce the sludge yield of conventional activated sludge (CAS) by up to 50% with potentially lower capital and operating cost than physical- and/or chemical-based sludge minimisation techniques. The mechanisms responsible for reducing sludge yield include alterations to cellular metabolism and...