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DBKDA
2010
IEEE
219views Database» more  DBKDA 2010»
13 years 7 months ago
GN-DTD: Graphical Notations for Describing XML Documents
— This paper presents a graphical approach to model XML documents based on a Data Type Documentation called Graphical Notations-Data Type Documentation (GN-DTD). GN-DTD allows us...
Zurinahni Zainol, Bing Wang
ER
2007
Springer
163views Database» more  ER 2007»
14 years 1 months ago
Know your Limits: Enhanced XML Modeling with Cardinality Constraints
XML Schema supports the specification of occurrence constraints by declaring values for its min/maxOccurs attributes. These constraints are structural in the sense that they rest...
Sebastian Link, Thu Trinh
IJCSA
2006
113views more  IJCSA 2006»
13 years 7 months ago
An Advanced XML Mediator for Heterogeneous Information Systems Based on Application Domain Specification
The explosion of the number of web-based information sources has drastically increased the need for intelligent mediation tools to be implemented between the users and these infor...
Mostafa Ezziyyani, Mustapha Bennouna, Loubna Cherr...
DASFAA
2008
IEEE
168views Database» more  DASFAA 2008»
14 years 2 months ago
SemanticTwig: A Semantic Approach to Optimize XML Query Processing
Twig pattern matching (TPM) is the core operation of XML query processing. Existing approaches rely on either efficient data structures or novel labeling/indexing schemes to reduce...
Zhifeng Bao, Tok Wang Ling, Jiaheng Lu, Bo Chen
KES
2008
Springer
13 years 7 months ago
A Secure Mediator for Integrating Multiple Level Access Control Policies
Abstract. We present a method for mapping security levels among the components of a distributed system where data in the local sources are represented in XML. Distributed data is i...
Isabel F. Cruz, Rigel Gjomemo, Mirko Orsini