5856 search results - page 357 / 1172 » Developing Query Patterns |
160
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SSDBM
2002
IEEE
15 years 9 months ago
2002
IEEE
This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description...
136
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CIKM
2009
Springer
15 years 8 months ago
2009
Springer
With the development of positioning technologies and the boosting deployment of inexpensive location-aware sensors, large volumes of trajectory data have emerged. However, efficie...
136
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GIS
2009
ACM
15 years 8 months ago
2009
ACM
Harnessing the potential of today’s ever growing and dynamic geospatial data requires the development of novel visual analysis interfaces, tools and technologies. In this paper,...
132
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DAWAK
2001
Springer
15 years 8 months ago
2001
Springer
Multi-Dimensional Expressions (MDX) provide an interface for asking several related OLAP queries simultaneously. An interesting problem is how to optimize the execution of an MDX q...
151
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FUZZIEEE
2007
IEEE
15 years 8 months ago
2007
IEEE
A central role of Geographic Information Systems (GIS) is to allow the identification and visualisation of relevant spatial features from typically large volumes of data. This requ...