Article,
A network aware privacy model for online requests in trajectory data
Data & Knowledge Engineering, 68 (4): 431-452 (April 2009)
DOI: http://dx.doi.org/10.1016/j.datak.2008.11.003
Abstract
In this work, we propose a privacy model for online user requests on trajectory data in location based services by utilizing an underlying network of user movement. The privacy model has been implemented as a framework that (i) reconstructs the user movement from a series of independent location updates, (ii) identifies routes where user privacy is at risk, and (iii) transforms user requests into anonymous equivalents. The framework is implemented on top of a spatial database engine that offers a significant portion of the necessary functionality, while provides for its effective deployment.
