Proceedings of the 1st ACM SIGSPATIAL International Workshop on Privacy in Geogr...

Location-Based Social Networks (LBSNs), such as Foursquare, Yelp and Facebook Place, have attracted many people, including business owners who use LBSNs to promote their … (More)

With the availability and rapid development of GPS-enabled mobile devices and the positioning technology, the Location-Based Services (LBS), aiming at providing customized … (More)

The research presented in this paper develops a novel approach for a risk-based authentication system that takes into account mobile user movement patterns. Inspired by the … (More)

Location-based systems (LBS) represent an emerging genre of applications that exploit positioning technologies and facilitate a wide range of location-based services. … (More)

We argue that current technical and legal attempts aimed at protecting Geoprivacy are insufficient. We propose a novel 2-dimensional model of privacy, which we term … (More)

Protecting patient geo-privacy while allowing for valid geographic analyses of the data is a major challenge [1]. As a consequence, a variety of methods have been introduced to mask … (More)

Quantity Based Aggregation (QBA) is a subject that is closely related to inference in databases. The goal is to enforce k out of N disclosure control. In this paper we work on QBA … (More)