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CCGRID
2011
IEEE
13 years 9 days ago
GeoServ: A Distributed Urban Sensing Platform
—Urban sensing where mobile users continuously gather, process, and share location-sensitive sensor data (e.g., street images, road condition, traffic flow) is emerging as a ne...
Jong Hoon Ahnn, Uichin Lee, Hyun Jin Moon
PVLDB
2008
154views more  PVLDB 2008»
13 years 8 months ago
Indexing land surface for efficient kNN query
The class of k Nearest Neighbor (kNN) queries is frequently used in geospatial applications. Many studies focus on processing kNN in Euclidean and road network spaces. Meanwhile, ...
Cyrus Shahabi, Lu-An Tang, Songhua Xing
WEA
2010
Springer
281views Algorithms» more  WEA 2010»
14 years 1 months ago
Distributed Time-Dependent Contraction Hierarchies
Server based route planning in road networks is now powerful enough to find quickest paths in a matter of milliseconds, even if detailed information on time-dependent travel times...
Tim Kieritz, Dennis Luxen, Peter Sanders, Christia...
ICDE
2009
IEEE
219views Database» more  ICDE 2009»
14 years 10 months ago
Distance Oracles for Spatial Networks
The popularity of location-based services and the need to do real-time processing on them has led to an interest in performing queries on transportation networks, such as finding s...
Jagan Sankaranarayanan, Hanan Samet
MOBIDE
2009
ACM
14 years 3 months ago
Toward context and preference-aware location-based services
The explosive growth of location-detection devices, wireless communications, and mobile databases has resulted in the realization of location-based services as commercial products...
Mohamed F. Mokbel, Justin J. Levandoski