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VLDB
2001
ACM
86views Database» more  VLDB 2001»
16 years 3 months ago
A graph-theoretic model for optimizing queries involving methods
Chiang Lee, Chi-Sheng Shih, Yaw-Huei Chen
SIAMCOMP
2012
13 years 5 months ago
An Optimal Dynamic Data Structure for Stabbing-Semigroup Queries
Let S be a set of n intervals in R, and let (S, +) be any commutative semigroup. We assign a weight ω(s) ∈ S to each interval in S. For a point x ∈ R, let S(x) ⊆ S be the se...
Pankaj K. Agarwal, Lars Arge, Haim Kaplan, Eyal Mo...
EDBT
2011
ACM
209views Database» more  EDBT 2011»
14 years 6 months ago
An optimal strategy for monitoring top-k queries in streaming windows
Continuous top-k queries, which report a certain number (k) of top preferred objects from data streams, are important for a broad class of real-time applications, ranging from fi...
Di Yang, Avani Shastri, Elke A. Rundensteiner, Mat...
VLDB
2005
ACM
122views Database» more  VLDB 2005»
15 years 8 months ago
Optimizing Nested Queries with Parameter Sort Orders
Nested iteration is an important technique for query evaluation. It is the default way of executing nested subqueries in SQL. Although decorrelation often results in cheaper non-n...
Ravindra Guravannavar, H. S. Ramanujam, S. Sudarsh...
DAWAK
2000
Springer
15 years 7 months ago
Optimal Multidimensional Query Processing Using Tree Striping
In this paper, we propose a new technique for multidimensional query processing which can be widely applied in database systems. Our new technique, called tree striping, generalize...
Stefan Berchtold, Christian Böhm, Daniel A. K...