The emergence of XML has lead to a change in the development style for Web sites. XML's advantages, such as the separation of content and presentation, or the possibility to ...
Abstract. Time is omnipresent on the (Semantic) Web. However, formalism like XML, XML Schema, RDF, OWL and (Semantic) Web query languages have, if any, only very limited notions of...
We introduce the Xdπ calculus, a peer-to-peer model for reasoning about dynamic web data. Web data is not just stored statically. Rather it is referenced indirectly, for example ...
The objective of our work is to provide some aid to the maintenance of a web site. The webmaster would like to get a semantic follow-up of the users’ browsing, but he only has a...
An outstanding security problem in mobile agent systems is resource access control, or authorization in its broader sense. In this paper we present an authorization framework for m...