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INFOCOM
2012
IEEE
13 years 9 months ago
Secure top-k query processing via untrusted location-based service providers
Abstract—This paper considers a novel distributed system for collaborative location-based information generation and sharing which become increasingly popular due to the explosiv...
Rui Zhang 0007, Yanchao Zhang, Chi Zhang
3DGIS
2006
Springer
16 years 18 days ago
Conception of a 3D Geodata Web Service for the Support of Indoor Navigation with GNSS
This paper addresses the concept of a 3D Geodata Web Service for the support of indoor navigation with satellite-based positioning systems like Galileo or GPS. The presented work ...
Stephan Mäs, Wolfgang Reinhardt, Fei Wang
OAS
2003
15 years 8 months ago
Location-Mediated Service Coordination in Ubiquitous Computing
We propose location-mediated service coordination in ubiquitous computing. In the coordination, middle agents determine bestmatched services for a user by considering the user’s...
Akio Sashima, Noriaki Izumi, Koichi Kurumatani
DBSEC
2010
161views Database» more  DBSEC 2010»
15 years 8 months ago
Secure Location Verification - A Security Analysis of GPS Signal Authentication
The use of location based services has increased significantly over the last few years. However, location information is only sparsely used as a security mechanism. One of the reas...
Georg T. Becker, Sherman C. Lo, David S. De Lorenz...
WWW
2006
ACM
16 years 17 days ago
Integrating semantic web and language technologies to improve the online public administrations services
In this paper, we describe how domain ontologies are used in a dialogue system guiding the user to access web public administration contents. The current implementation of the sys...
Marta Gatius, Meritxell González, Sheyla Militell...