Examining how Users Interact with Hypermedia Using a Neural Network  

Users of hypermedia systems, including the Web, are known to produce distinctive patterns depending upon what it is that they are trying to achieve with the medium. For example, someone who is seeking specific information produces a different browsing pattern than someone who is browsing generally. However, it is also known that people using hypermedia for similar purposes produce similar, but not identical, patterns. Such information would be useful for a browsing aid, since it would enable the better selection of links, for offering to the user, based upon what the user’s task is. This paper describes the architecture and training of a neural network system designed to recognise hypermedia browsing patterns in a prototype hypermedia environment. A further fuzzy-logic based system, which is used to record trends in browsing patterns, is then discussed in outline. Both systems have performed well in small-scale studies, with both real users and simulated-data. Further, both systems have proved robust to the potentially complex behaviour of users. These issues are discussed further.

Mullier, D.J. Proceedings of ICAI (2000). Articles>Usability>Methods>Cognitive Psychology

The Speechlet Project

Speechlet is a system which allows blind students of the Java programming language to use existing course material. Most Java courses use program examples that generate graphic output. The main reason for this is that students enjoy writing programs that produce interesting and exciting outputs. However, a blind student is unable to see the output of their program and is unable to even gauge that their program has worked. Speechlet was therefore produced to allow a blind student to move the mouse pointer over the screen and hear a spoken description of what is there. This paper discusses the reasons for the development of Speechlet, followed by a description of its operation and finally a discussion of its use in practise.

Mullier, D.J. TechDis (2003). Articles>Web Design>Accessibility>Software