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ICDE
2012
IEEE
191views Database» more  ICDE 2012»
13 years 6 days ago
DESKS: Direction-Aware Spatial Keyword Search
— Location-based services (LBS) have been widely accepted by mobile users. Many LBS users have direction-aware search requirement that answers must be in a search direction. Howe...
Guoliang Li, Jianhua Feng, Jing Xu
GIS
2004
ACM
15 years 10 months ago
Energy efficient exact kNN search in wireless broadcast environments
The advances in wireless communication and decreasing costs of mobile devices have enabled users to access desired information at any time. Coupled with positioning technologies l...
Bugra Gedik, Aameek Singh, Ling Liu
IDC
2009
Springer
14 years 7 months ago
Efficient Broadcasting by Selective Forwarding
A major challenge faced in mobile ad hoc networks (MANETs) is locating devices for communication, especially in the case of high node mobility and sparse node density. Present solu...
Doina Bein, Ajoy Kumar Datta, Balaji Ashok Sathyan...
WWW
2003
ACM
15 years 10 months ago
Ontology-Based Image Retrieval
The binary form of an image does not tell what the image is about. It is possible to retrieve images from a database using pattern matching techniques, but usually textual descript...
Avril Styrman, Eero Hyvönen, Kim Viljanen, Sa...
SIGMOD
2008
ACM
210views Database» more  SIGMOD 2008»
15 years 10 months ago
Private queries in location based services: anonymizers are not necessary
Mobile devices equipped with positioning capabilities (e.g., GPS) can ask location-dependent queries to Location Based Services (LBS). To protect privacy, the user location must n...
Gabriel Ghinita, Panos Kalnis, Ali Khoshgozaran, C...