44 search results - page 7 / 9 » Reasoning over Conceptual Schemas and Queries in Temporal Da... |
PODS
2008
ACM
14 years 6 months ago
2008
ACM
Data exchange, also known as data translation, has been extensively investigated in recent years. One main direction of research has focused on the semantics and the complexity of...
TC
1997
13 years 7 months ago
1997
In this paper we describe a new approach to repairing violations of integrity constraints in databases with null values. By adopting basic concepts from model-based diagnosis, we ...
GIS
2004
ACM
14 years 7 months ago
2004
ACM
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...
GIS
2004
ACM
14 years 7 months ago
2004
ACM
Spatial, temporal and spatio-temporal aggregates over continuous streams of remotely sensed image data build a fundamental operation in many applications in the environmental scie...
ESWS
2009
Springer
14 years 26 days ago
2009
Springer
Abstract. Ontology matching has become an important field of research over the last years. Although many different approaches have been proposed, only few of them are committed t...