6905 search results - page 1061 / 1381 » Querying Multidimensional Databases |
204
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VLDB
2007
ACM
16 years 4 months ago
2007
ACM
When integrating data from heterogeneous sources, it is often necessary to transform both the schemas and the data from the underlying sources in order to present the integrated d...
213
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VLDB
2007
ACM
16 years 4 months ago
2007
ACM
Ontology, an explicit specification of shared conceptualization, has been increasingly used to define formal data semantics and improve data reusability and interoperability in en...
222
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VLDB
2009
ACM
16 years 4 months ago
2009
ACM
For a largenumber of data management problems, it would be very useful to be able to obtain a few samples from a data set, and to use the samples to guess the largest (or smallest)...
225
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SIGMOD
2006
ACM
16 years 4 months ago
2006
ACM
This paper describes the ADO.NET Entity Framework, a platform for programming against data that raises the level of ion from the logical (relational) level to the conceptual (enti...
208
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SIGMOD
2005
ACM
16 years 4 months ago
2005
ACM
We give semantic characterizations of the expressive power of navigational XPath (also called Core XPath) in terms of first order logic. XPath can be used to specify sets of nodes...