EDBT
2010
ACM
13 years 9 months ago
2010
ACM
User privacy in location-based services has attracted great interest in the research community. We introduce a novel framework based on a decentralized architecture for privacy pr...
ICDE
2004
IEEE
14 years 5 months ago
2004
IEEE
Given two sets of points P and Q, a group nearest neighbor (GNN) query retrieves the point(s) of P with the smallest sum of distances to all points in Q. Consider, for instance, t...