826 search results - page 92 / 166 » Query Performance Prediction: Evaluation Contrasted with Eff... |
100
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EDBT
2010
ACM
14 years 11 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...
82
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PVLDB
2010
14 years 8 months ago
2010
The need to improve a suboptimal execution plan picked by the query optimizer for a repeatedly run SQL query arises routinely. Complex expressions, skewed or correlated data, and ...
MIS
2004
Springer
15 years 3 months ago
2004
Springer
When similarity queries over multimedia databases are processed by splitting the overall query condition into a set of sub-queries, the problem of how to efficiently and effectiv...
106
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PVLDB
2008
14 years 9 months ago
2008
Supporting graceful schema evolution represents an unsolved problem for traditional information systems that is further exacerbated in web information systems, such as Wikipedia a...
127
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VLDB
1995
ACM
15 years 1 months ago
1995
ACM
Parallel database systems have to support the effective parallelization of complex queries in multi-user mode, i.e. in combination with inter-query/inter-transaction parallelism. ...