902 search results - page 53 / 181 » Efficient and Extensible Algorithms for Multi Query Optimiza... |
196
Voted
SIGMOD
2009
ACM
16 years 2 months ago
2009
ACM
In this paper, we consider the problem of keyword query cleaning for structured databases from a probabilistic approach. Keyword query cleaning consists of rewriting the user quer...
225
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ICDE
2005
IEEE
16 years 3 months ago
2005
IEEE
The ability to compute top-k matches to XML queries is gaining importance due to the increasing number of large XML repositories. The efficiency of top-k query evaluation relies o...
127
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PVLDB
2008
15 years 1 months ago
2008
Estimates of predicate selectivities by database query optimizers often differ significantly from those actually encountered during query execution, leading to poor plan choices a...
167
Voted
SSDBM
2002
IEEE
15 years 7 months ago
2002
IEEE
The efficient management of interval data represents a core requirement for many temporal and spatial database applications. With the Relational Interval Tree (RI-tree1 ), an effi...
193
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SIGMOD
2008
ACM
16 years 2 months ago
2008
ACM
Pattern matching over event streams is increasingly being employed in many areas including financial services, RFIDbased inventory management, click stream analysis, and electroni...