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WAIM
2007
Springer
14 years 5 months ago
An Efficient Spatial Search Method Based on SG-Tree
To solve the overlapping search of multidimensional spatial database containing large quantity of objects with dynamic spatial extent, this paper proposes an index structure named ...
Yintian Liu, Changjie Tang, Lei Duan, Tao Zeng, Ch...
ADBIS
2004
Springer
124views Database» more  ADBIS 2004»
14 years 4 months ago
Vague Spatial Data Types, Set Operations, and Predicates
Many geographical applications deal with spatial objects that cannot be adequately described by determinate, crisp concepts because of their intrinsically indeterminate and vague n...
Alejandro Pauly, Markus Schneider
CIKM
2009
Springer
14 years 3 months ago
Query processing of massive trajectory data based on mapreduce
With the development of positioning technologies and the boosting deployment of inexpensive location-aware sensors, large volumes of trajectory data have emerged. However, efficie...
Qiang Ma, Bin Yang 0002, Weining Qian, Aoying Zhou
GIS
2009
ACM
13 years 8 months ago
Distortion-based anonymity for continuous queries in location-based mobile services
Privacy preservation has recently received considerable attention for location-based mobile services. Various location cloaking approaches have been proposed to protect the locati...
Xiao Pan, Xiaofeng Meng, Jianliang Xu
DEXA
2003
Springer
106views Database» more  DEXA 2003»
14 years 4 months ago
Location Query Based on Moving Behaviors
The importance of location prediction is rapidly increasing with the current trend of database applications in mobile computing environment. However, current personal communicatio...
Ming-Hui Jin, Eric Hsiao-Kuang Wu, Jorng-Tzong Hor...