620 search results - page 36 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
133
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SIGMOD
2010
ACM
15 years 4 months ago
2010
ACM
Many websites provide restrictive form-like interfaces which allow users to execute search queries on the underlying hidden databases. In this paper, we consider the problem of es...
130
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PVLDB
2010
15 years 2 months ago
2010
Uncertain data streams are increasingly common in real-world deployments and monitoring applications require the evaluation of complex queries on such streams. In this paper, we c...
168
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EDBT
2004
ACM
16 years 3 months ago
2004
ACM
There is a growing interest in on-line algorithms for analyzing and querying data streams, that examine each stream element only once and have at their disposal, only a limited amo...
130
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ICDT
2010
ACM
16 years 1 months ago
2010
ACM
Sources of data uncertainty and imprecision are numerous. A way to handle this uncertainty is to associate probabilistic annotations to data. Many such probabilistic database mode...
143
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PODS
2000
ACM
15 years 8 months ago
2000
ACM
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...