Sciweavers

184 search results - page 6 / 37
» Querying XML Sources Using an Ontology-Based Mediator
Sort
View
VLDB
1997
ACM
86views Database» more  VLDB 1997»
14 years 6 hour ago
Using Probabilistic Information in Data Integration
The goal of a mediator system is to provide users a uniform interface to the multitude of information sources. To translate user queries, given in a mediated schema, to queries on...
Daniela Florescu, Daphne Koller, Alon Y. Levy
ER
2009
Springer
117views Database» more  ER 2009»
13 years 11 months ago
An Ontology-Based Framework for Geographic Data Integration
Ontologies have been extensively used to model domain-specific knowledge. Recent research has applied ontologies to enhance the discovery and retrieval of geographic data in Spatia...
Vânia Maria Ponte Vidal, Eveline R. Sacramen...
GISCIENCE
2008
Springer
154views GIS» more  GISCIENCE 2008»
13 years 9 months ago
Ontology-Based Geospatial Data Query and Integration
Geospatial data sharing is an increasingly important subject as large amount of data is produced by variety of sources, stored in incompatible formats, and accessible through diffe...
Tian Zhao, Chuanrong Zhang, Mingzhen Wei, Zhong-Re...
PDIS
1996
IEEE
14 years 20 hour ago
Capabilities-Based Query Rewriting in Mediator Systems
Users today are struggling to integrate a broad range of information sources providing di erent levels of query capabilities. Currently, data sources with di erent and limitedcapa...
Yannis Papakonstantinou, Ashish Gupta, Laura M. Ha...
WWW
2008
ACM
14 years 8 months ago
A semantic layer for publishing and localizing xml data for a p2p xquery mediator
In this poster, we present the P2P XML data localization layer of XLive, an XQuery mediation system developed at University of Versailles [2]. A major challenge in the evaluation ...
Florin Dragan, Georges Gardarin, Laurent Yeh