Grid computing has recently become an important paradigm for managing eomputationally demanding applications (composed of a collection of services). Providing dynamic discovery of services, and the determination of a service with the "best value" remains a complex problem in Grid computing. Such...

The Computational Gris is a promising technology for providing access to distributed high-end computational capabilities. It enables the execution of complex and computationally demanding applications such as simulations or multimedia-renderings. However, one of the key problems in the...

Der Handel von Produktbündeln (Bundle Trading) auf Finanzmärkten kann unter anderemdurch die von Markowitz entwickelte Portfolio-Selektionstheorie sowie Optionskombinationsstrategienmotiviert werden. In der Praxis äußert sich dies durch die Existenz innovativerelektronischer Finanzmärkte,...

This paper describes the design and implementation of Bibster, a Peer-to-Peer system for exchanging bibliographic data among researchers. Bibster exploits ontologies in data-storage, query formulation, query-routing and answer presentation: When bibliographic entries are made available for use...