2724 search results - page 334 / 545 » Optimizing Queries on Files |
135
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EDBT
2009
ACM
15 years 7 months ago
2009
ACM
Many Web applications are based on dynamic interactions between Web components exchanging flows of information. Such a situation arises for instance in mashup systems or when moni...
170
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BNCOD
2007
15 years 5 months ago
2007
Order is essential for XML query processing. Efficient XML processing with order consideration over relational storage is non-trivial, especially for complex nested XQuery expressi...
144
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SIGMOD
2010
ACM
15 years 4 months ago
2010
ACM
Histograms have been widely used for fast estimation of query result sizes in query optimization. In this paper, we propose a new histogram method, called the Skew-Tolerant Histog...
150
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EDBT
2009
ACM
15 years 1 months ago
2009
ACM
In this work, we focus on managing scientific environmental data, which are measurement readings collected from wireless sensors. In environmental science applications, raw sensor...
225
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EDBT
2011
ACM
14 years 7 months ago
2011
ACM
Equi-depth histograms represent a fundamental synopsis widely used in both database and data stream applications, as they provide the cornerstone of many techniques such as query ...