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» Spatial Queries in the Presence of Obstacles
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EDBT
2004
ACM
126views Database» more  EDBT 2004»
14 years 3 months ago
Spatial Queries in the Presence of Obstacles
Despite the existence of obstacles in many database applications, traditional spatial query processing utilizes the Euclidean distance metric assuming that points in space are dire...
Jun Zhang, Dimitris Papadias, Kyriakos Mouratidis,...
SIGMOD
2009
ACM
258views Database» more  SIGMOD 2009»
14 years 3 months ago
Continuous obstructed nearest neighbor queries in spatial databases
In this paper, we study a novel form of continuous nearest neighbor queries in the presence of obstacles, namely continuous obstructed nearest neighbor (CONN) search. It considers...
Yunjun Gao, Baihua Zheng
FLAIRS
2004
13 years 5 months ago
Clustering Spatial Data in the Presence of Obstacles
Clustering is a form of unsupervised machine learning. In this paper, we proposed the DBRS_O method to identify clusters in the presence of intersected obstacles. Without doing an...
Xin Wang, Howard J. Hamilton
PKDD
2004
Springer
105views Data Mining» more  PKDD 2004»
13 years 9 months ago
Density-Based Spatial Clustering in the Presence of Obstacles and Facilitators
Xin Wang, Camilo Rostoker, Howard J. Hamilton
ICNS
2009
IEEE
13 years 10 months ago
Impact of Obstacles on the Degree of Mobile Ad Hoc Connection Graphs
What is the impact of obstacles on the graphs of connections between stations in Mobile Ad hoc Networks? In order to answer, at least partially, this question, the first step is ...
Cédric Gaël Aboue-Nze, Fréd&eac...