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» Evaluating the spatial indexing of dense point sets
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67
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SISAP
2008
IEEE
115views Data Mining» more  SISAP 2008»
15 years 5 months ago
A Dynamic Pivot Selection Technique for Similarity Search
All pivot-based algorithms for similarity search use a set of reference points called pivots. The pivot-based search algorithm precomputes some distances to these reference points...
Benjamin Bustos, Oscar Pedreira, Nieves R. Brisabo...
ICDE
2010
IEEE
874views Database» more  ICDE 2010»
15 years 10 months ago
UV-Diagram: A Voronoi Diagram for Uncertain Data
The Voronoi diagram is an important technique for answering nearest-neighbor queries for spatial databases. In this paper, we study how the Voronoi diagram can be used on uncertain...
Reynold Cheng, Xike Xie, Man Lung Yiu, Jinchuan Ch...
87
Voted
EDBT
2008
ACM
154views Database» more  EDBT 2008»
15 years 11 months ago
Ring-constrained join: deriving fair middleman locations from pointsets via a geometric constraint
We introduce a novel spatial join operator, the ring-constrained join (RCJ). Given two sets P and Q of spatial points, the result of RCJ consists of pairs p, q (where p P, q Q) ...
Man Lung Yiu, Panagiotis Karras, Nikos Mamoulis
82
Voted
ICDM
2007
IEEE
122views Data Mining» more  ICDM 2007»
15 years 5 months ago
Zonal Co-location Pattern Discovery with Dynamic Parameters
Zonal co-location patterns represent subsets of featuretypes that are frequently located in a subset of space (i.e., zone). Discovering zonal spatial co-location patterns is an im...
Mete Celik, James M. Kang, Shashi Shekhar
EDBT
2009
ACM
172views Database» more  EDBT 2009»
15 years 3 months ago
Continuous visible nearest neighbor queries
In this paper, we identify and solve a new type of spatial queries, called continuous visible nearest neighbor (CVNN) search. Given a data set P, an obstacle set O, and a query li...
Yunjun Gao, Baihua Zheng, Wang-Chien Lee, Gencai C...