Abstract. Developing service based complex applications (service composition) has become an important area of research in SOA. In spite of this, there has been little effort to und...
We study highly expressive query languages such as datalog, fixpoint, and while-languages on probabilistic databases. We generalize these languages such that computation steps (e....
Abstract. We present a modelling language, called X-Policy, for webbased collaborative systems with dynamic access control policies. The access to resources in these systems depend...
The Oracle relational database management system, with object-oriented extensions and numerous applicationdriven enhancements, plays a critical role worldwide in managing the expl...
The cost and complexity of administration of large systems has come to dominate their total cost of ownership. Stateless and soft-state components, such as Web servers or network ...