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» Access control for XML: a dynamic query rewriting approach
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WLP
2000
Springer
13 years 11 months ago
A Dynamic Approach to Deductive Query Evaluation
In this paper, a dynamic approach to deductive query evaluation is presented which combines the e ects of di erent SIP strategies used for the magic set rewriting technique. Given...
Andreas Behrend
VLDB
2005
ACM
162views Database» more  VLDB 2005»
14 years 28 days ago
XQuery Implementation in a Relational Database System
Many enterprise applications prefer to store XML data as a rich data type, i.e. a sequence of bytes, in a relational database system to avoid the complexity of decomposing the dat...
Shankar Pal, Istvan Cseri, Oliver Seeliger, Michae...
DASFAA
2006
IEEE
136views Database» more  DASFAA 2006»
14 years 1 months ago
Reuse or Never Reuse the Deleted Labels in XML Query Processing Based on Labeling Schemes
To facilitate the XML query processing, several kinds of labeling schemes have been proposed. Based on the labeling schemes, the ancestordescendant and parent-child relationships i...
Changqing Li, Tok Wang Ling, Min Hu
CIKM
2005
Springer
14 years 1 months ago
QED: a novel quaternary encoding to completely avoid re-labeling in XML updates
The method of assigning labels to the nodes of the XML tree is called a labeling scheme. Based on the labels only, both ordered and un-ordered queries can be processed without acc...
Changqing Li, Tok Wang Ling
OTM
2007
Springer
14 years 1 months ago
A Role and Attribute Based Access Control System Using Semantic Web Technologies
We show how Semantic Web technologies can be used to build an access control system. We follow the role-based access control approach (RBAC) and extend it with contextual attribute...
Lorenzo Cirio, Isabel F. Cruz, Roberto Tamassia