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» Querying XML Sources Using an Ontology-Based Mediator
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GVD
2004
94views Database» more  GVD 2004»
13 years 9 months ago
MIWeb: Mediator-based Integration of Web Sources
MIWeb realizes a mediator-based integration of heterogeneous metadata sources over the Web. Mediators are well known from database integration. They improve the quality of search ...
Susanne Busse, Thomas Kabisch
GIS
2004
ACM
14 years 9 months ago
Query processing in a geographic mediation system
Despite various interoperability recommendations, heterogeneity of Geographic Information Systems (GIS) is still an issue. This led to an increasing need for a data integration sy...
François-Marie Colonna, Mehdi Essid, Omar B...
WWW
2003
ACM
14 years 8 months ago
Piazza: data management infrastructure for semantic web applications
The Semantic Web envisions a World Wide Web in which data is described with rich semantics and applications can pose complex queries. To this point, researchers have defined new l...
Alon Y. Halevy, Zachary G. Ives, Peter Mork, Igor ...
VDB
2000
144views Database» more  VDB 2000»
13 years 9 months ago
BBQ: A Visual Interface for Integrated Browsing and Querying of XML
In this paper we present BBQ (Blended Browsing and Querying), a graphic user interface for seamlessly browsing and querying XML data sources. BBQ displays the structure of multipl...
Kevin D. Munroe, Yannis Papakonstantinou
AIMSA
2010
Springer
13 years 9 months ago
Expressive Approximations in DL-Lite Ontologies
Abstract. Ontology based data access (OBDA) is concerned with providing access to typically very large data sources through a mediating conceptual layer that allows one to improve ...
Elena Botoeva, Diego Calvanese, Mariano Rodriguez-...