Sciweavers

12 search results - page 1 / 3
» Clustering Spatial Data in the Presence of Obstacles
Sort
View
FLAIRS
2004
13 years 6 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 10 months ago
Density-Based Spatial Clustering in the Presence of Obstacles and Facilitators
Xin Wang, Camilo Rostoker, Howard J. Hamilton
EDBT
2004
ACM
126views Database» more  EDBT 2004»
14 years 4 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 4 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
ACISICIS
2007
IEEE
13 years 11 months ago
Minimum Message Length Clustering of Spatially-Correlated Data with Varying Inter-Class Penalties
We present here some applications of the Minimum Message Length (MML) principle to spatially correlated data. Discrete valued Markov Random Fields are used to model spatial correl...
Gerhard Visser, David L. Dowe