Abstract not found

this paper we show how Bayesian models can be used advantageously for various adaptation tasks in open WWW-based hypermedia systems. We discuss how to model user knowledge about different topics and learning dependencies between these topics, how to make inferences for calculating the system's belief on a user's knowledge based on observations from exercises/observations. We illustrate this discussion by examples from an educational hypermedia system we developed for our course "

(based on the 2001/2002 proposal)

Teaching and learning is naturally an interactive, recursive, and iterative process. Consequently, the courseware is almost always changing during the whole teaching and learning process, which makes courseware authoring and publishing more complicated. In addition, with today's use of Web-enabled global cooperation in education, courseware authoring and publishing is further becoming a collaborative process due to the necessary cooperation among geographically dispersed partner universities. In this paper, we present a courseware authoring and publishing system which has been practically applied in a joint course held both at the University of Hannover and the Free University of Bozen. We adopt a recent collaboration-friendly Internet protocol, WebDAV, to support collaborative courseware authoring, the markup-language XML to represent metadata of course contents, and the stylesheet language XSLT to accomplish courseware presentation. With its simple syntax, XML can on the one hand simplify the courseware authoring and structuring process, on the other hand, as a neutral meta-language, it can also separate course contents from courseware presentation when used with XSLT. 1. Motivation The Web is fundamentally changing the way education is done. Today, not only in so-called virtual universities but also in many traditional universities more and more courses are partially or even entirely provided directly on and through the Web. As a matter of fact, Web-enabled global cooperation in education as well as Web-enabled new pedagogical methods have provided us with more possibilities to reduce the cost of education and to improve the efficiency and quality of the teaching and learning process, although at the same time they provide also more challenges on Web-based coursewa...

The driving vision for this project is a distributed “Learning Web Infrastructure”, which makes it possible to