@INPROCEEDINGS{SMKarydisV2010,
  AUTHOR =       {Spyros Sioutas and Emmanouil Magkos and Ioannis Karydis and Vassilios S. Verykios},
  TITLE =        {Uncertainty for Anonymity and 2-Dimensional Range Query Distortion},
  BOOKTITLE =    {Privacy in Statistical databases},
  YEAR =         {2010},
  pages =        {85--96},
  abstract =     {In this work, we study the problem of anonymity-preserving data publishing in moving objects databases. In particular, the trajectory of a mobile user on the plane is no longer a polyline in a two-dimensional space, instead it is a two-dimensional surface: we know that the trajectory of the mobile user is within this surface, but we do not know exactly where. We transform the surface’s boundary poly-lines to dual points and we focus on the information distortion introduced by this space translation. We develop a set of efficient spatio-temporal access methods and we experimentally measure the impact of information distortion by comparing the performance results of the same spatio-temporal range queries executed on the original database and on the anonymized one.},
  keywords =     {Uncertainty, Privacy, Anonymity, Moving Objects Databases},
}