6746 search results - page 309 / 1350 » Multimodal Database Query |
150
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ICDT
2001
ACM
15 years 8 months ago
2001
ACM
In information-integration systems, source relations often have limitations on access patterns to their data; i.e., when one must provide values for certain attributes of a relatio...
125
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DEXAW
1998
IEEE
15 years 8 months ago
1998
IEEE
Materialized views offer opportunities for significant performance gain in query evaluation by providing fast access to pre-computed data. The question of when and how to use a ma...
121
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DOOD
1995
Springer
15 years 8 months ago
1995
Springer
Wrappers provide access to heterogeneous information sources by converting application queries into source speci c queries or commands. In this paper we present a wrapper implemen...
135
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SIGMOD
2002
ACM
15 years 4 months ago
2002
ACM
Traditional query processors generate full, accurate query results, either in batch or in pipelined fashion. We argue that this strict model is too rigid for exploratory queries o...
159
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DATESO
2009
15 years 2 months ago
2009
Indexing methods for efficient processing of multidimensional data are very requested in many fields, like geographical information systems, drawing documentations etc. Well-known ...