Sciweavers

61 search results - page 5 / 13
» Query Rewriting Algorithm Evaluation for XML Security Views
Sort
View
ADC
2008
Springer
114views Database» more  ADC 2008»
15 years 6 months ago
An Integrated Access Control for Securely Querying and Updating XML Data
Many existing access controls use node filtering or querying rewriting techniques. These techniques require rather time-consuming processes such as parsing, labeling, pruning and/...
Maggie Duong, Yanchun Zhang
COOPIS
2002
IEEE
15 years 9 months ago
Querying XML Sources Using an Ontology-Based Mediator
In this paper we propose a mediator architecture for the querying and integration of Web-accessible XML data sources. Our contributions are (i) the definition of a simple but expr...
Bernd Amann, Catriel Beeri, Irini Fundulaki, Miche...
ICDT
2005
ACM
102views Database» more  ICDT 2005»
15 years 10 months ago
Selecting and Using Views to Compute Aggregate Queries (Extended Abstract)
d abstract) Foto Afrati1 and Rada Chirkova2 1 Electrical and Computing Eng., National Technical University of Athens, 157 73 Athens, Greece 2 Computer Science Department, North Car...
Foto N. Afrati, Rada Chirkova
WWW
2007
ACM
16 years 5 months ago
Exploit sequencing views in semantic cache to accelerate xpath query evaluation
In XML databases, materializing queries and their results into views in a semantic cache can improve the performance of query evaluation by reducing computational complexity and I...
Jianhua Feng, Na Ta, Yong Zhang, Guoliang Li
BDA
2004
15 years 6 months ago
Tree Graph Views: On Efficient Evaluation of XQuery in an XML Mediator
XQuery is the emerging standard for querying XML data sources. XLive is a light XML/XQuery mediator developed at University of Versailles whose engine processes an XML algebra der...
Tuyet-Tram Dang-Ngoc, Georges Gardarin, Nicolas Tr...