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JSW
2007
106views more  JSW 2007»
15 years 3 months ago
Supporting Attribute-based Access Control in Authorization and Authentication Infrastructures with Ontologies
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&...
VLDB
2007
ACM
169views Database» more  VLDB 2007»
16 years 4 months ago
Staying FIT: Efficient Load Shedding Techniques for Distributed Stream Processing
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...
Nesime Tatbul, Stanley B. Zdonik, Ugur Çeti...
FQAS
2004
Springer
91views Database» more  FQAS 2004»
15 years 9 months ago
On the Discovery of the Semantic Context of Queries by Game-Playing
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...
Alessandro Agostini, Paolo Avesani
ICDE
2006
IEEE
193views Database» more  ICDE 2006»
16 years 5 months ago
Probabilistic Message Passing in Peer Data Management Systems
Until recently, most data integration techniques involved central components, e.g., global schemas, to enable transparent access to heterogeneous databases. Today, however, with t...
Philippe Cudré-Mauroux, Karl Aberer, Andras...
224
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SIGMOD
2009
ACM
201views Database» more  SIGMOD 2009»
16 years 4 months ago
Cost based plan selection for xpath
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...