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SIGMOD
1996
ACM
116views Database» more  SIGMOD 1996»
15 years 8 months ago
Optimizing Queries over Multimedia Repositories
Repositories of multimedia objects having multiple types of attributes e.g., image, text are becoming increasingly common. A selection on these attributes will typically produce n...
Surajit Chaudhuri, Luis Gravano
COMPGEOM
1998
ACM
15 years 8 months ago
Geometric Applications of a Randomized Optimization Technique
Abstract. We propose a simple, general, randomized technique to reduce certain geometric optimization problems to their corresponding decision problems. These reductions increase t...
Timothy M. Chan
HM
2007
Springer
137views Optimization» more  HM 2007»
15 years 10 months ago
A Hybrid VNS for Connected Facility Location
The connected facility location (ConFL) problem generalizes the facility location problem and the Steiner tree problem in graphs. Given a graph G = (V, E), a set of customers D ⊆...
Ivana Ljubic
GECCO
2005
Springer
147views Optimization» more  GECCO 2005»
15 years 10 months ago
Adaptive sizing of populations and number of islands in distributed genetic algorithms
Deciding the appropriate population size and number of islands for distributed island-model genetic algorithms is often critical to the algorithm’s success. This paper outlines ...
Johan Berntsson, Maolin Tang
VLDB
2001
ACM
86views Database» more  VLDB 2001»
15 years 9 months ago
Intelligent Rollups in Multidimensional OLAP Data
In this paper we propose a new operator for advanced exploration of large multidimensional databases. The proposed operator can automatically generalize from a specific problem c...
Gayatri Sathe, Sunita Sarawagi