Economic theory, I am led to believe, makes an assumption that market participants operate rationally, utilising perfect information for optimal performance. We seem to be so far away from this situation that it may not be worth even asking the questions, but – looking at the images of traders in meltdown still plugged into their screens and phones – we might wonder what went wrong in informati...

The Clair library is intended to simplify a number of generic tasks in Natural Language Processing (NLP), Information Retrieval (IR), and Network Analysis. Its architecture also allows for external software to be plugged in with very little effort. Functionality native to Clairlib includes Tokenization, Summarization, LexRank, Biased LexRank, Document Clustering, Document Indexing, PageRank, Bi...

We summarize the mathematics behind the computer program KnotTwister and explain some of its features.

Most requirements management processes and associated tools are designed for document-driven software development and are unlikely to be adopted for the needs of an agile software development team. We discuss how and what can make the traditional requirements documentation a lightweight process, and suitable for user requirements elicitation and analysis. We propose a reference model for requir...

Effective security management depends upon good risk management, which is itself based upon a reliable risk assessment, involving data collection of all the facets influencing system risk. Such data collection is often an extremely onerous task, particularly if a substantial proportion of the required information is not adequately documented. Hence comprehensive, updated information security do...

We have developed software for the realistic simulation of a single vessel from an angiogram. Initially a parameterized space curve is generated which specifies the path of the vessel in a three-dimensional space. The position of an aneurysm or stenosis along the path of the vessel may then be specified. Finally, the volume of the vessel is constructed along the space curve, and the resultant i...

\7e have investigated the fluctuations of sums of random variables X.., Xp, ... . We have generalized previous results on the random variables H connected with this sequence, obtained new results on the validity of the Arc-sine Law for independent not identically distributed random variables, obtained a generalization of Spitzer's identity, and obtained a generalization of the equivalence princ...