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Privacy-Preserving Distributed Movement Data Aggregation

  • Anna MonrealeEmail author
  • Wendy Hui Wang
  • Francesca Pratesi
  • Salvatore Rinzivillo
  • Dino Pedreschi
  • Gennady Andrienko
  • Natalia Andrienko
Chapter
Part of the Lecture Notes in Geoinformation and Cartography book series (LNGC)

Abstract

We propose a novel approach to privacy-preserving analytical processing within a distributed setting, and tackle the problem of obtaining aggregated information about vehicle traffic in a city from movement data collected by individual vehicles and shipped to a central server. Movement data are sensitive because people’s whereabouts have the potential to reveal intimate personal traits, such as religious or sexual preferences, and may allow re-identification of individuals in a database. We provide a privacy-preserving framework for movement data aggregation based on trajectory generalization in a distributed environment. The proposed solution, based on the differential privacy model and on sketching techniques for efficient data compression, provides a formal data protection safeguard. Using real-life data, we demonstrate the effectiveness of our approach also in terms of data utility preserved by the data transformation.

Keywords

Movement Data Laplace Distribution Frequency Vector Differential Privacy Privacy Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This work has been partially supported by EU FET-Open project LIFT (FP7-ICT-2009-C n. 255951) and EU FET-Open project DATA SIM (FP7-ICT 270833)

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Copyright information

© Springer International Publishing Switzerland 2013

Authors and Affiliations

  • Anna Monreale
    • 1
    Email author
  • Wendy Hui Wang
    • 2
  • Francesca Pratesi
    • 1
  • Salvatore Rinzivillo
    • 3
  • Dino Pedreschi
    • 1
  • Gennady Andrienko
    • 4
  • Natalia Andrienko
    • 4
  1. 1.University of PisaPisaItaly
  2. 2.Stevens Institute of TechnologyHobokenUSA
  3. 3.ISTI-CNRPisaItaly
  4. 4.Fraunhofer IAISSankt AugustinGermany

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