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IEEECIT
2005
IEEE
14 years 1 months ago
Context-sensitive Access Control Model and Implementation
Context is a key factor in making make access control decision in modern information system. But a formal context model is needed to guide research of implementation of Context-se...
Weili Han, Junjing Zhang, Xiaobo Yao
GIS
2004
ACM
14 years 8 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
GIS
2008
ACM
14 years 8 months ago
Privacy: preserving trajectory collection
In order to provide context?aware Location?Based Services, real location data of mobile users must be collected and analyzed by spatio?temporal data mining methods. However, the d...
Gyözö Gidófalvi, Torben Bach Pede...
ICDE
2008
IEEE
139views Database» more  ICDE 2008»
14 years 9 months ago
Maintaining Connectivity in Dynamic Multimodal Network Models
Network data models are frequently used as a mechanism to describe the connectivity between spatial features in many emerging GIS applications (location-based services, transporta...
Petko Bakalov, Erik G. Hoel, Wee-Liang Heng, Vassi...
MM
2009
ACM
196views Multimedia» more  MM 2009»
14 years 2 months ago
Mirror world navigation for mobile users based on augmented reality
Finding a destination in unfamiliar environments of complex office building or shopping mall has been always bothering us in daily life. Fine-scale directional guidance, a combina...
Patricia P. Wang, Tao Wang, Dayong Ding, Yimin Zha...