333 search results - page 41 / 67 » Read-Once Functions and Query Evaluation in Probabilistic Da... |
143
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CIKM
2004
Springer
15 years 8 months ago
2004
Springer
In the recent years, the Web has been rapidly “deepened” with the prevalence of databases online. On this deep Web, many sources are structured by providing structured query i...
130
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VLDB
1998
ACM
15 years 7 months ago
1998
ACM
Many applications compute aggregate functions over an attribute (or set of attributes) to find aggregate values above some specified threshold. We call such queries iceberg querie...
126
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PVLDB
2008
15 years 2 months ago
2008
The backend database system is often the performance bottleneck when running web applications. A common approach to scale the database component is query result caching, but it fa...
127
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SSD
2005
Springer
15 years 9 months ago
2005
Springer
Abstract. Query optimization is an important functionality of modern database systems and often based on estimating the selectivity of queries before actually executing them. Well-...
237
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ICDT
2011
ACM
14 years 7 months ago
2011
ACM
Distributed data management systems consist of peers that store, exchange and process data in order to collaboratively achieve a common goal, such as evaluate some query. We study...