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CCS
2008
ACM
13 years 9 months ago
Assessing query privileges via safe and efficient permission composition
We propose an approach for the selective enforcement of access control restrictions in, possibly distributed, large data collections based on two basic concepts: i) flexible autho...
Sabrina De Capitani di Vimercati, Sara Foresti, Su...
SIGMOD
2004
ACM
198views Database» more  SIGMOD 2004»
14 years 8 months ago
Secure XML Querying with Security Views
The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing ...
Wenfei Fan, Chee Yong Chan, Minos N. Garofalakis
VLDB
2005
ACM
113views Database» more  VLDB 2005»
14 years 8 months ago
Mediators over taxonomy-based information sources
Abstract. We propose a mediator model for providing integrated and unified access to multiple taxonomy-based sources. Each source comprises a taxonomy and a database that indexes o...
Yannis Tzitzikas, Nicolas Spyratos, Panos Constant...
GCC
2007
Springer
13 years 9 months ago
Component Based Legacy Program Executing over Grid
Executing the legacy program over grid is very important and necessary. To reuse the legacy program, we developed a method based on Component for executing the legacy code. We can...
Le Du, Yongwei Wu, Chunlu Wang
JSAC
2006
93views more  JSAC 2006»
13 years 7 months ago
A future radio-access framework
This paper discusses the requirements on future radio access and, based on the requirements, proposes a framework for such a system. The proposed system based on orthogonal frequen...
David Astely, Erik Dahlman, Pål K. Frenger, ...