3368 search results - page 186 / 674 » The Complexity of Query Reliability |
178
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SAC
2008
ACM
15 years 6 months ago
2008
ACM
We address aggregate queries over GIS data and moving object data, where non-spatial information is stored in a data warehouse. We propose a formal data model and query language t...
178
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EDBT
2004
ACM
16 years 6 months ago
2004
ACM
OGSA-DQP is a distributed query processor exposed to users as an Open Grid Services Architecture (OGSA)-compliant Grid service. This service supports the compilation and evaluation...
172
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SIGMOD
1999
ACM
15 years 10 months ago
1999
ACM
The design of webbases, database systems for supporting Webbased applications, is currently an active area of research. In this paper, we propose a 3-layer architecture for design...
158
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CIKM
2009
Springer
16 years 1 months ago
2009
Springer
We introduce a new theoretical derivation, evaluation methods, and extensive empirical analysis for an automatic query expansion framework in which model estimation is cast as a r...
161
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ICDT
1995
ACM
15 years 10 months ago
1995
ACM
We investigate and compare two forms of recursion on sets for querying nested collections. The rst one is called sri and it corresponds to sequential processing of data. The second...