Authors
Darakhshan J Mir, Sibren Isaacman, Ramón Cáceres, Margaret Martonosi, Rebecca N Wright
Publication date
2013/10/6
Conference
2013 IEEE international conference on big data
Pages
580-588
Publisher
IEEE
Description
Models of human mobility have broad applicability in urban planning, ecology, epidemiology, and other fields. Starting with Call Detail Records (CDRs) from a cellular telephone network that have gone through a straightforward anonymization procedure, the prior WHERE modeling approach produces synthetic CDRs for a synthetic population. The accuracy of WHERE has been validated against billions of location samples for hundreds of thousands of cell phones in the New York and Los Angeles metropolitan areas. In this paper, we introduce DP-WHERE, which modifies WHERE by adding controlled noise to achieve differential privacy, a strict definition of privacy that makes no assumptions about the power or background knowledge of a potential adversary. We also present experiments showing that the accuracy of DP-WHERE remains close to that of WHERE and of real CDRs. With this work, we aim to enable …
Scholar articles
DJ Mir, S Isaacman, R Cáceres, M Martonosi… - 2013 IEEE international conference on big data, 2013