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» On rewriting XPath queries using views
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AICOM
2004
100views more  AICOM 2004»
14 years 9 months ago
Query rewriting with symmetric constraints
Abstract. We address the problem of answering queries using expressive symmetric inter-schema constraints which allow to establish mappings between several heterogeneous informatio...
Christoph Koch
COOPIS
2002
IEEE
15 years 2 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...
DATESO
2004
174views Database» more  DATESO 2004»
14 years 11 months ago
On Efficient Part-match Querying of XML Data
The XML language have been becoming de-facto a standard for representation of heterogeneous data in the Internet. From database point of view, XML is a new approach to data modelli...
Michal Krátký, Marek Andrt
ICDT
2001
ACM
86views Database» more  ICDT 2001»
15 years 2 months ago
Minimizing View Sets without Losing Query-Answering Power
Abstract. The problem of answering queries using views has been studied extensively due to its relevance in a wide variety of data-management applications. In these applications, w...
Chen Li, Mayank Bawa, Jeffrey D. Ullman
VLDB
2007
ACM
104views Database» more  VLDB 2007»
15 years 10 months ago
Unifying Data and Domain Knowledge Using Virtual Views
The database community is on a constant quest for better integration of data management and knowledge management. Recently, with the increasing use of ontology in various applicat...
Lipyeow Lim, Haixun Wang, Min Wang