2859 search results - page 200 / 572 » Querying Complex Structured Databases |
151
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EDBT
2010
ACM
15 years 4 months ago
2010
ACM
The availability of indoor positioning renders it possible to deploy location-based services in indoor spaces. Many such services will benefit from the efficient support for k n...
216
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SIGMOD
2006
ACM
16 years 2 months ago
2006
ACM
We present and analyze an algorithm for equivalent rewriting of XQuery queries using XQuery views, which is complete for a large class of XQueries featuring nested FLWR blocks, XM...
116
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ICDE
2007
IEEE
15 years 8 months ago
2007
IEEE
The ability to query data streams is of increasing importance and has been identified as a crucial element for modern organizations and agencies. This paper identifies a class o...
134
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DEXAW
1999
IEEE
15 years 6 months ago
1999
IEEE
ing spatio-temporal data as abstract data types into already existing data models is a promising approach to creating spatio-temporal query languages. In this context, an importan...
206
Voted
SIGMOD
2007
ACM
16 years 2 months ago
2007
ACM
Complex queries often contain common or similar subexpressions, either within a single query or among multiple queries submitted as a batch. If so, query execution time can be imp...