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» Validity-Sensitive Querying of XML Databases
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ICDT
2010
ACM
133views Database» more  ICDT 2010»
14 years 2 months ago
On the Tradeoff between Mapping and Querying Power in XML Data Exchange
In XML data exchange, a schema mapping specifies rules for restructuring a source document under the target schema, and queries over the target document must be answered in a way...
Shunichi Amano, Claire David, Leonid Libkin, Filip...
ESOP
2008
Springer
13 years 12 months ago
Regular Expression Subtyping for XML Query and Update Languages
Abstract. XML database query languages such as XQuery employ regular expression types with structural subtyping. Subtyping systems typically have two presentations, which should be...
James Cheney
ICDE
2006
IEEE
169views Database» more  ICDE 2006»
14 years 11 months ago
Making Designer Schemas with Colors
XML schema design has two opposing goals: elimination of update anomalies requires that the schema be as normalized as possible; yet higher query performance and simpler query exp...
Nuwee Wiwatwattana, H. V. Jagadish, Laks V. S. Lak...
WWW
2006
ACM
14 years 10 months ago
Evaluating structural summaries as access methods for XML
Structural summaries are data structures that preserve all structural features of XML documents in a compact form. We investigate the applicability of the most popular summaries a...
Mirella Moura Moro, Zografoula Vagena, Vassilis J....
DASFAA
2003
IEEE
142views Database» more  DASFAA 2003»
14 years 3 months ago
GLASS: A Graphical Query Language for Semi-Structured Data
The increase in the use of XML (eXtensible Markup Language) makes the semistructured data more and more important on the Web. To exploit the full power of XML documents, a query l...
Wei Ni, Tok Wang Ling