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INFOCOM
2012
IEEE
11 years 10 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
14 years 1 months 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
13 years 9 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»
13 years 9 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
14 years 1 months 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...