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195
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ICDE
2006
IEEE
98views Database» more  ICDE 2006»
16 years 4 months ago
Space-Partitioning Trees in PostgreSQL: Realization and Performance
Many evolving database applications warrant the use of non-traditional indexing mechanisms beyond B+-trees and hash tables. SP-GiST is an extensible indexing framework that broade...
Mohamed Y. Eltabakh, Ramy Eltarras, Walid G. Aref
226
Voted
ICDE
2005
IEEE
156views Database» more  ICDE 2005»
16 years 4 months ago
Reverse Nearest Neighbors in Large Graphs
A reverse nearest neighbor (RNN) query returns the data objects that have a query point as their nearest neighbor (NN). Although such queries have been studied quite extensively in...
Man Lung Yiu, Dimitris Papadias, Nikos Mamoulis, Y...
ICPR
2008
IEEE
16 years 3 months ago
Probabilistic tracking on Riemannian manifolds
The covariance region descriptor recently proposed in [1] has been proved robust and versatile for a modest computational cost. The covariance matrix enables efficient fusion of d...
Bo Wu, Hanqing Lu, Jia Liu, Yi Wu
116
Voted
ICPR
2008
IEEE
16 years 3 months ago
Counterfeit iris detection based on texture analysis
This paper addresses the issue of counterfeit iris detection, which is a liveness detection problem in biometrics. Fake iris mentioned here refers to iris wearing color contact le...
Tieniu Tan, Xianchao Qiu, Zhenan Sun, Zhuoshi Wei
231
Voted
GIS
2005
ACM
16 years 3 months ago
Two ellipse-based pruning methods for group nearest neighbor queries
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
Hongga Li, Hua Lu, Bo Huang, Zhiyong Huang