620 search results - page 47 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
109
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CIKM
2010
Springer
15 years 2 months ago
2010
Springer
Marking up queries with annotations such as part-of-speech tags, capitalization, and segmentation, is an important part of many approaches to query processing and understanding. D...
147
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ICDE
2012
IEEE
13 years 6 months ago
2012
IEEE
—On a stream of two dimensional data items (x, y) where x is an item identifier, and y is a numerical attribute, a correlated aggregate query requires us to first apply a selec...
144
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CC
2009
Springer
15 years 8 months ago
2009
Springer
Single-assignment languages with copy semantics have a very simple and approachable programming model. A na¨ıve implementation of the copy semantics that copies the result of eve...
170
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DOLAP
1999
ACM
15 years 8 months ago
1999
ACM
In this paper, we describe the design of a data warehousing system for an engineering company ‘R’. This system aims to assist users in retrieving data for business analysis in...
121
Voted
VLDB
2005
ACM
15 years 9 months ago
2005
ACM
The largest databases in use today are so large that answering a query exactly can take minutes, hours, or even days. One way to address this problem is to make use of approximati...