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CCS
2008
ACM
15 years 8 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
2005
ACM
103views Database» more  SIGMOD 2005»
16 years 6 months ago
Verifying Completeness of Relational Query Results in Data Publishing
In data publishing, the owner delegates the role of satisfying user queries to a third-party publisher. As the publisher may be untrusted or susceptible to attacks, it could produ...
HweeHwa Pang, Arpit Jain, Krithi Ramamritham, Kian...
ICMCS
2007
IEEE
211views Multimedia» more  ICMCS 2007»
16 years 1 months ago
Context-Based Scalable Coding and Representation of High Resolution Art Pictures for Remote Data Access
EROS is the largest database in the world of high resolution art pictures. The TSAR project is designed to open it in a secure, efficient and user-friendly way that involves cryp...
Marie Babel, Olivier Déforges, Laurent B&ea...
SDMW
2005
Springer
16 years 4 days ago
An Authorization Framework for Sharing Data in Web Service Federations
In this paper we present our authorization framework that supports the dynamic set-up of Web service federations for sharing data within virtual federations. Building on previous w...
Martin Wimmer, Alfons Kemper
TIP
2011
195views more  TIP 2011»
15 years 1 months ago
Accelerating X-Ray Data Collection Using Pyramid Beam Ray Casting Geometries
Abstract—Image reconstruction from its projections is a necessity in many applications such as medical (CT), security, inspection, and others. This paper extends the 2-D Fan-beam...
Amir Averbuch, Guy Lifschitz, Yoel Shkolnisky