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PODS
1998
ACM
152views Database» more  PODS 1998»
13 years 11 months ago
A Cost Model for Similarity Queries in Metric Spaces
We consider the problem of estimating CPU (distance computations) and I/O costs for processing range and k-nearest neighbors queries over metric spaces. Unlike the specific case ...
Paolo Ciaccia, Marco Patella, Pavel Zezula
SSD
2005
Springer
98views Database» more  SSD 2005»
14 years 27 days ago
Medoid Queries in Large Spatial Databases
Assume that a franchise plans to open k branches in a city, so that the average distance from each residential block to the closest branch is minimized. This is an instance of the ...
Kyriakos Mouratidis, Dimitris Papadias, Spiros Pap...
SC
2005
ACM
14 years 1 months ago
The MHETA Execution Model for Heterogeneous Clusters
The availability of inexpensive “off the shelf” machines increases the likelihood that parallel programs run on heterogeneous clusters of machines. These programs are increasi...
Mario Nakazawa, David K. Lowenthal, Wenduo Zhou