4137 search results - page 648 / 828 » Managing Expressions as Data in Relational Database Systems |
151
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ICALT
2003
IEEE
15 years 11 months ago
2003
IEEE
Since the approval of IEEE LOM Draft Standard and the advance of network-driven learning technology, a large number of resource database constructors, content developers and learn...
183
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CIKM
2008
Springer
15 years 8 months ago
2008
Springer
Answering queries over ontologies is an important issue for the Semantic Web. Aggregate queries were widely studied for relational databases but almost no results are known for ag...
129
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JCIT
2010
15 years 1 months ago
2010
For the purpose of equipment training, realistic training environments need to be built and makes operators having an immersed sense. Aiming at present military requirement for eq...
171
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INTERNET
2007
15 years 6 months ago
2007
evel of abstraction, we can represent a workflow as a directed graph with operators (or tasks) at the vertices (see Figure 1). Each operator takes inputs from data sources or from ...
266
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GIS
2010
ACM
15 years 5 months ago
2010
ACM
The quality of a local search engine, such as Google and Bing Maps, heavily relies on its geographic datasets. Typically, these datasets are obtained from multiple sources, e.g., ...