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» Algorithms for Querying by Spatial Structure
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GIS
2010
ACM
13 years 8 months ago
Reverse k-Nearest Neighbor monitoring on mobile objects
In this paper we focus on the problem of continuously monitoring the set of Reverse k-Nearest Neighbors (RkNNs) of a query object in a moving object database using a client server...
Tobias Emrich, Hans-Peter Kriegel, Peer Kröge...
EDBT
2010
ACM
210views Database» more  EDBT 2010»
13 years 11 months ago
Keyword search for data-centric XML collections with long text fields
Users who are unfamiliar with database query languages can search XML data sets using keyword queries. Current approaches for supporting such queries are either for textcentric XM...
Arash Termehchy, Marianne Winslett
ENDM
2010
84views more  ENDM 2010»
13 years 9 months ago
Formulation symmetries in circle packing
The performance of Branch-and-Bound algorithms is severely impaired by the presence of symmetric optima in a given problem. We describe a method for the automatic detection of for...
Alberto Costa, Leo Liberti, Pierre Hansen
ICIP
2001
IEEE
14 years 11 months ago
Image motion estimation-convergence and error analysis
The paper computes the reliability of estimates of image motion parameters. The use of such measures of reliability to weight motion estimates improves significantly the performan...
José M. F. Moura, Pedro M. Q. Aguiar
VLDB
2007
ACM
191views Database» more  VLDB 2007»
14 years 9 months ago
Multidimensional reverse k NN search
Given a multidimensional point q, a reverse k nearest neighbor (RkNN) query retrieves all the data points that have q as one of their k nearest neighbors. Existing methods for proc...
Yufei Tao, Dimitris Papadias, Xiang Lian, Xiaokui ...