Techniques of Multilevel Location Trigger for Location-based Services

Location Depersonalization for Location Privacy Protection in Location-Based Services

A spatial region with K different footprints indicates that it has been visited by K different people. An adversary may be able to identify all these users, but will not know who was there at what time. This observation gives us a new direction to investigate location depersonalization in location-based services (LBSs). We propose to leverage users’ historical location samples, each being a foo...

A Generalized Study on Encryption Techniques for Location Based Services

Location-based service (LBS) is the concept that denotes applications integrating geographic location (i.e., spatial coordinates) with the general notion of services. Examples of such applications include emergency services, car navigation systems, tourist tour planning etc. The increasing spread of location-based services (LBSs) has led to a renewed research interest in the security of service...

Novel spatial query processing techniques for scaling location based services

Private Information Retrieval Techniques for Enabling Location Privacy in Location-Based Services

The ubiquity of smartphones and other location-aware handheld devices has resulted in a dramatic increase in popularity of locationbased services (LBS) tailored to user locations. The comfort of LBS comes with a privacy cost. Various distressing privacy violations caused by sharing sensitive location information with potentially malicious services have highlighted the importance of location pri...

Privacy for Location-based Services

Sharing of location data enables numerous exciting applications, such as location-based queries, location-based social recommendations, monitoring of traffic and air pollution levels, etc. Disclosing exact user locations raises serious privacy concerns, as locations may give away sensitive information about individuals’ health status, alternative lifestyles, political and religious affiliations...