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» Answering XML Queries on Heterogeneous Data Sources
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PODS
2009
ACM
171views Database» more  PODS 2009»
14 years 9 months ago
XML schema mappings
Relational schema mappings have been extensively studied in connection with data integration and exchange problems, but mappings between XML schemas have not received the same amo...
Shun'ichi Amano, Leonid Libkin, Filip Murlak
ER
2009
Springer
117views Database» more  ER 2009»
14 years 2 days 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...
APIN
2000
75views more  APIN 2000»
13 years 8 months ago
Context Knowledge Representation and Reasoning in the Context Interchange System
The Context Interchange Project presents a unique approach to the problem of semantic conflict resolution among multiple heterogeneous data sources. The system presents a semantic...
Stéphane Bressan, Cheng Hian Goh, Natalia L...
SIGMOD
2003
ACM
127views Database» more  SIGMOD 2003»
14 years 9 months ago
Cache-and-Query for Wide Area Sensor Databases
Webcams, microphones, pressure gauges and other sensors provide exciting new opportunities for querying and monitoring the physical world. In this paper we focus on querying wide ...
Amol Deshpande, Suman Kumar Nath, Phillip B. Gibbo...
ECAI
2004
Springer
14 years 2 months ago
An Ontology Based Visual Tool for Query Formulation Support
In this paper we describe the principles of the design and development of an intelligent query interface, done in the context of the SEWASIE (SEmantic Webs and AgentS in Integrated...
Tiziana Catarci, Paolo Dongilli, Tania Di Mascio, ...