3225 search results - page 258 / 645 » Query Optimization by Stored Queries |
170
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SIGMOD
1997
ACM
15 years 10 months ago
1997
ACM
Data warehouses store materialized views over base data from external sources. Clients typically perform complex read-only queries on the views. The views are refreshed periodical...
191
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DGCI
2000
Springer
15 years 9 months ago
2000
Springer
We consider the problem of finding the best match for a given query shape among candidate shapes stored in a shape base. This is central to a wide range of applications, such as, d...
157
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PODS
1989
ACM
15 years 9 months ago
1989
ACM
In this paper we propose the use of fractals and especially the Hilbert curve, in order to design good distance-preserving mappings. Such mappings improve the performance of secon...
157
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ESWS
2010
Springer
15 years 9 months ago
2010
Springer
The Semantic Web movement has led to the publication of thousands of ontologies online. These ontologies present and mediate information and knowledge on the Semantic Web. Tools ex...
154
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ADBIS
2010
Springer
15 years 7 months ago
2010
Springer
Multidimensional data structures are applied in many areas, e.g. in data mining, indexing multimedia data and text documents, and so on. There are some applications where the range...