An XML-based architecture for adaptive web hypermedia systems using a probabilistic user model

Web-based hypermedia systerns are becoming increasingly popular as tools for user-driven access to information and services. This paper presents an architecture for the development of web-based Adaptive Hypermedia Svsterns. The architecture uses wteighted graphs of XML documents to describe the application domain and a probabilistic model to adapt the web-site content generation and presentation to the user's behaviour The user's behaviour is modelled using a probabilistic model and the most promising profile, that is a "view " over the application domain, is dynamically assigned to the user, using a discrete probability density function.