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VLDB
2003
ACM
107views Database» more  VLDB 2003»
14 years 10 months ago
A performance study of four index structures for set-valued attributes of low cardinality
The efficient retrieval of data items on set-valued attributes is an important research topic that has attracted little attention so far. We studied and modified four index structu...
Sven Helmer, Guido Moerkotte
PUK
2000
13 years 11 months ago
Dynamic Scheduling of Progressive Processing Plans
Progressive processing plans allow systems to tradeoff computational resources against the quality of service by specifying alternative ways in which to accomplish each step. When ...
Shlomo Zilberstein, Abdel-Illah Mouaddib, Andrew A...
TOG
2008
106views more  TOG 2008»
13 years 9 months ago
Green Coordinates
We introduce Green Coordinates for closed polyhedral cages. The coordinates are motivated by Green's third integral identity and respect both the vertices position and faces ...
Yaron Lipman, David Levin, Daniel Cohen-Or
TVCG
2010
162views more  TVCG 2010»
13 years 8 months ago
Computing Robustness and Persistence for Images
—We are interested in 3-dimensional images given as arrays of voxels with intensity values. Extending these values to a continuous function, we study the robustness of homology c...
Paul Bendich, Herbert Edelsbrunner, Michael Kerber
ICPR
2008
IEEE
14 years 4 months ago
Constrained clustering by a novel graph-based distance transformation
In this work we present a novel method to model instance-level constraints within a clustering algorithm. Thereby, both similarity and dissimilarity constraints can be used coeval...
Kai Rothaus, Xiaoyi Jiang