1160 search results - page 77 / 232 » Query Processing and Optimization for Pictorial Query Trees |
WAIM
2004
Springer
15 years 3 months ago
2004
Springer
A top-N selection query against a relation is to find the N tuples that satisfy the query condition the best but not necessarily completely. In this paper, we propose a new method ...
100
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SIGMOD
2011
ACM
14 years 1 months ago
2011
ACM
In this paper we consider the problem of answering queries using views, which is important for data integration, query optimization, and data warehouses. We consider its simplest ...
120
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WWW
2010
ACM
14 years 8 months ago
2010
ACM
Finding the occurrences of structural patterns in XML data is a key operation in XML query processing. Existing algorithms for this operation focus almost exclusively on path patt...
102
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ICDT
2012
ACM
13 years 17 days ago
2012
ACM
We introduce a representation system for relational data based on algebraic factorisation using distributivity of product over union and commutativity of product and union. We giv...
182
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SIGMOD
2006
ACM
15 years 10 months ago
2006
ACM
In this paper, we present the design, implementation, and evaluation of a system that executes complex event queries over real-time streams of RFID readings encoded as events. The...