2223 search results - page 293 / 445 » Query Optimization in an OODBMS |
131
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ICASSP
2008
IEEE
15 years 11 months ago
2008
IEEE
This paper considers the problem of predictive fusion coding for storage of multiple spatio-temporally correlated sources so as to enable efficient selective retrieval of data fr...
133
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APWEB
2004
Springer
15 years 9 months ago
2004
Springer
Queries to data warehouses often involve hundreds of complex aggregations over large volumes of data, and so it is infeasible to compute these queries by scanning the data sources ...
147
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BTW
2003
Springer
15 years 9 months ago
2003
Springer
Abstract: In order to achieve efficient execution plans for queries comprising userdefined data types and predicates, the database system has to be provided with appropriate index ...
140
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SIGMOD
1999
ACM
15 years 8 months ago
1999
ACM
Several techniques that compute the join between two spatial datasets have been proposed during the last decade. Among these methods, some consider existing indices for the joined...
122
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VLDB
1998
ACM
15 years 8 months ago
1998
ACM
Oracle Materialized Views (MVs) are designed for data warehousing and replication. For data warehousing, MVs based on inner/outer equijoins with optional aggregation, can be refre...