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» Medoid Queries in Large Spatial Databases
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DNIS
2010
Springer
250views Database» more  DNIS 2010»
14 years 4 months ago
Towards K-Nearest Neighbor Search in Time-Dependent Spatial Network Databases
The class of k Nearest Neighbor (kNN) queries in spatial networks is extensively studied in the context of numerous applications. In this paper, for the first time we study a gene...
Ugur Demiryurek, Farnoush Banaei Kashani, Cyrus Sh...
SIGMOD
2012
ACM
191views Database» more  SIGMOD 2012»
12 years 2 days ago
Sindbad: a location-based social networking system
This demo presents Sindbad; a location-based social networking system. Sindbad supports three new services beyond traditional social networking services, namely, location-aware ne...
Mohamed Sarwat, Jie Bao 0003, Ahmed Eldawy, Justin...
GIS
2005
ACM
14 years 10 months ago
Improving the R*-tree with outlier handling techniques
The R*-tree, as a state-of-the-art spatial index, has already found its way into commercial systems like Oracle. In this paper, we aim at improving query performance of the R*tree...
Tian Xia, Donghui Zhang
PDP
2008
IEEE
14 years 4 months ago
Distributed Sparse Spatial Selection Indexes
Searching for similar objects in metric-space databases can be efficiently solved by using index data structures. A number of alternative sequential indexes have been proposed in...
Veronica Gil Costa, Mauricio Marín
ICDE
2005
IEEE
156views Database» more  ICDE 2005»
14 years 11 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...