2223 search results - page 328 / 445 » Query Optimization in an OODBMS |
152
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HICSS
2002
IEEE
15 years 9 months ago
2002
IEEE
In this paper we consider a multipath extension to the dynamic source routing (DSR) protocol proposed by Johnson and Maltz, an on-demand routing protocol for ad hoc wireless netwo...
122
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SIGMOD
1994
ACM
15 years 8 months ago
1994
ACM
We describe an algorithm for estimating the number of page fetches for a partial or complete scan of a B-tree index. The algorithm obtains estimates for the number of page fetches ...
153
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CIKM
2006
Springer
15 years 7 months ago
2006
Springer
By providing an integrated and optimized support for user-defined aggregates (UDAs), data stream management systems (DSMS) can achieve superior power and generality while preservi...
120
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GIS
1995
ACM
15 years 7 months ago
1995
ACM
Polygonal objects are characterized by the following well-known parameters: number of vertices, area, perimeter and so on. These parameters describe the data sets that are used in...
122
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KDD
1995
ACM
15 years 7 months ago
1995
ACM
For semantic query optimization one needs detailed knowledgeabout the contents of the database. Traditional techniquesuse static knowledgeabout all possible states of the database...