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ENGL
2007
73views more  ENGL 2007»
13 years 10 months ago
Updates Under Pstable
—Based on a recent view of Pstable models that allows talking about knowledge and beliefs of an agent, we propose an extension of the AGM postulates based on these notions. To th...
Fernando Zacarias Flores, Mauricio Osorio Galindo,...
ICDT
2007
ACM
112views Database» more  ICDT 2007»
14 years 4 months ago
Commutativity Analysis in XML Update Languages
Abstract. A common approach to XML updates is to extend XQuery with update operations. This approach results in very expressive languages which are convenient for users but are dif...
Giorgio Ghelli, Kristoffer Høgsbro Rose, J&...
CIKM
2005
Springer
14 years 3 months ago
Access control for XML: a dynamic query rewriting approach
We introduce the notion of views as a mechanism for securing and providing access control in the context of XML. Research in XML has explored several efficient querying mechanism...
Sriram Mohan, Arijit Sengupta, Yuqing Wu
WDAG
1998
Springer
76views Algorithms» more  WDAG 1998»
14 years 2 months ago
Multicast Group Communication as a Base for a Load-Balancing Replicated Data Service
We give a rigorous account of an algorithm that provides sequentially consistent replicated data on top of the view synchronous group communication service previously specified by ...
Roger Khazan, Alan Fekete, Nancy A. Lynch
SDMW
2007
Springer
14 years 4 months ago
Query Rewriting Algorithm Evaluation for XML Security Views
Abstract. We investigate the experimental effectiveness of query rewriting over XML security views. Our model consists of access control policies specified over DTDs with XPath e...
Nataliya Rassadko