TY - GEN
T1 - Geo-indistinguishability
T2 - 11th International Conference on Distributed Computing and Internet Technology, ICDCIT 2015
AU - Chatzikokolakis, Konstantinos
AU - Palamidessi, Catuscia
AU - Stronati, Marco
N1 - Publisher Copyright:
© Springer International Publishing Switzerland 2015.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - In this paper we report on our ongoing project aimed at protecting the privacy of the user when dealing with location-based services. The starting point of our approach is the principle of geo-indistinguishability, a formal notion of privacy that protects the user’s exact location, while allowing approximate information – typically needed to obtain a certain desired service – to be released. We then present two mechanisms for achieving geo-indistinguishability, one generic to sanitize locations in any setting with reasonable utility, the other custom-built for a limited set of locations but providing optimal utility. Finally we extend our mechanisms to the case of location traces, where the user releases his location repeatedly along the day and we provide a method to limit the degradation of the privacy guarantees due to the correlation between the points. All the mechanisms were tested on real datasets and compared both among themselves and with respect to the state of the art in the field.
AB - In this paper we report on our ongoing project aimed at protecting the privacy of the user when dealing with location-based services. The starting point of our approach is the principle of geo-indistinguishability, a formal notion of privacy that protects the user’s exact location, while allowing approximate information – typically needed to obtain a certain desired service – to be released. We then present two mechanisms for achieving geo-indistinguishability, one generic to sanitize locations in any setting with reasonable utility, the other custom-built for a limited set of locations but providing optimal utility. Finally we extend our mechanisms to the case of location traces, where the user releases his location repeatedly along the day and we provide a method to limit the degradation of the privacy guarantees due to the correlation between the points. All the mechanisms were tested on real datasets and compared both among themselves and with respect to the state of the art in the field.
U2 - 10.1007/978-3-319-14977-6_4
DO - 10.1007/978-3-319-14977-6_4
M3 - Conference contribution
AN - SCOPUS:84922340031
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 49
EP - 72
BT - Distributed Computing and InternetTechnology - 11th International Conference, ICDCIT 2015, Proceedings
A2 - Natarajan, Raja
A2 - Barua, Gautam
A2 - Patra, Manas Ranjan
PB - Springer Verlag
Y2 - 5 February 2015 through 8 February 2015
ER -