With the popularity of location-based services and the abundant usage of smart phones and
GPS enabled devices, the necessity of outsourcing spatial data has grown rapidly over the …

Mobile smartphone users frequently need to search for nearby points of interest from a
location based service, but in a way that preserves the privacy of the users' locations. We …

This paper considers a novel distributed system for collaborative location-based information
generation and sharing which become increasingly popular due to the explosive growth of …

With the pervasiveness of location-aware mobile terminals and the popularity of social
applications, location-based social networking service (LBSNS) has brought great …

In many existing location-based services, a service provider becomes aware of the location
of its customers and can, maybe inadvertently, leak this information to unauthorized entities …

In this paper we propose a fundamental approach to perform the class of Range and
Nearest Neighbor (NN) queries, the core class of spatial queries used in location-based …

Abstract In recent years, Location-Based Services (LBS) have become very popular,
especially in the light of enhancements that are daily performed on both mobile devices and …

With the increasing popularity of mobile communication devices loaded with positioning
capabilities (eg, GPS), there is growing demand for enjoying location-based services …

The fear of services building user profiles will constitute a rising threat to new mobile
services. Especially when thinking of location based services, users must be able to trust the …

Mobility is key to personal freedom. With the increasing availability of mobile devices, many
providers begin to offer location-based services. Although these services greatly enrich our …