Being able to recognise everyday activities of daily life provides the opportunity of tracking functional decline among elderly people who suffer from Alzheimer’s disease. This paper describes an approach that has been developed for recognising activities of daily life based on a hierarchal structure of plans. While it is logical to envisage that the most common activities will be modelled with...

Agile processes allow developers to construct, run and test executable models in short, incremental, iterative cycles. However, the agile development processes tend to minimize the modeling phase and the usage of UML models, because UML is a “unified” (too general) language with a lot of semantic variation points. The current version of UML together with its Action Semantics provide the foundat...

Input/output (I/O) operations can represent a significant proportion of the run-time when large scientific applications are run in parallel. Although there have been advances in the form of file-format libraries, file system design and I/O hardware, a growing divergence exists between the performance of parallel file systems and compute processing rates. In this paper we utilise RIOT, an input/...

Data envelopment analysis (DEA) is a non-parametric technique to measure the efficiencies of a set of decision making units (DMUs) with common crisp inputs and outputs. In real-world problems, however, inputs and outputs typically have some levels of fuzziness. To analyze a DMU with fuzzy input/output data, previous studies provided the fuzzy DEA (FDEA) model and proposed an associated evaluati...

While human listeners excel at selectively attending to a conversation in a cocktail party, machine performance is still far inferior by comparison. We show that the cocktail party problem, or the speech separation problem, can be effectively approached via structured prediction. To account for temporal dynamics in speech, we employ conditional random fields (CRFs) to classify speech dominance ...

Engaging students in meaningful learning activities that complement and enhance face to face and other traditional modes of teaching presents a major challenge to universities. Course delivery systems may incorporate generic mechanisms for assessment and basic feedback, but are limited in terms of richness of expression. The use of more open-ended exercises requiring teaching staff to correct a...

This is the sixth in a series introducing the activity model in the Unified Modeling Language, version 2 (UML 2), and how it integrates with the action model [1]. The first article gives an overview of activities and actions [2], while the next four cover models typically used for graphical flow languages. This one describes models for languages that usually have textual presentations. It cover...

The recent major revision of the UML [21] has introduced significant changes and additions to “the lingua franca of Software Engineering”. Within the UML, Activity Diagrams are particularly prominent, since they are the natural choice when it comes to the modeling of web-services, workflows, and service-oriented architectures. One of the most novel concepts introduced are so called structured n...

This paper details an expression of interest (EoI) in the area of “biometric identity authentication”. This EoI was submitted in response to an invitation made by the EC as part of its preparation of the Sixth Framework Programme. The work in this area is to be supported by a proposed network of excellence (NoE). This will be formed by regrouping the critical mass of expertise required to promo...