Protecting privacy for group nearest neighbor queries with crowdsourced data and computing

  • Authors:
  • Tanzima Hashem;Mohammed Eunus Ali;Lars Kulik;Egemen Tanin;Anthony Quattrone

  • Affiliations:
  • Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh;Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh;University of Melbourne, Victoria, Australia;University of Melbourne, Victoria, Australia;Department of Computing and Information Systems, University of Melbourne, Australia

  • Venue:
  • Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing
  • Year:
  • 2013

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Abstract

User privacy in location-based services (LBSs) has become an important research area. We introduce a new direction to protect user privacy that evaluates LBSs with crowdsourced data and computation and eliminates the role of a location-based service provider. We focus on the group nearest neighbor (GNN) query that allows a group to meet at their nearest point of interest such as a restaurant that minimizes the total or maximum distance of the group. We develop a crowdsource-based approach, called PrivateMeetUp, to evaluate GNN queries in a privacy preserving manner and implement a working prototype of PrivateMeetUp.