Abstract— In highly open systems like the Internet, attributebased access control (ABAC) has proven its appropriateness. This is reflected in the utilization of ABAC in authenti...
Torsten Priebe, Wolfgang Dobmeier, Christian Schl&...
In distributed stream processing environments, large numbers of continuous queries are distributed onto multiple servers. When one or more of these servers become overloaded due t...
In: Proceedings of the Sixth International Conference On Flexible Query Answering Systems (FQAS-04), Springer-Verlag LNAI 3055, pp. 203-216. c 2004 by Springer-Verlag. To model qu...
Until recently, most data integration techniques involved central components, e.g., global schemas, to enable transparent access to heterogeneous databases. Today, however, with t...
We present a complete XPath cost-based optimization and execution framework and demonstrate its effectiveness and efficiency for a variety of queries and datasets. The framework i...
Haris Georgiadis, Minas Charalambides, Vasilis Vas...