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- W2626067139 abstract "The purpose of this paper is to prevent privacy leakage resulting from improper release of spatio temporal trajectory data and achieve a balance between privacy protection and practicability Therefore this article builds a model of nbsp the self evolution of attack patterns and proposes APT PP algorithm based on the spatio temporal correlation within trajectory data The core thoughts of the APT PP algorithm are as following firstly classify trajectory data into hold points and moving points build trajectory chart and calculate the sensitivity of each point which reduces the size of data set and improves operating efficiency then transform the above mentioned chart into prefix tree to evaluate to what extent trajectories are kept secret and prefix tree also raises the algorithm rsquo s retrieval efficiency finally amend the prefix tree with grafting operation protecting privacy while keeping data utility At the end of this article a comparative experiment is introduced to assess the performance of APT PP algorithm with real data set The results of experiment proved that this algorithm can protect users rsquo privacy and on the same time provide high quality spatio temporal trajectory data and positive user experience" @default.
- W2626067139 created "2017-06-23" @default.
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- W2626067139 date "2017-04-28" @default.
- W2626067139 modified "2023-09-22" @default.
- W2626067139 title "Spatio-Temporal Trajectory Privacy-Protection Algorithm Based on Amending Prefix Tree" @default.
- W2626067139 doi "https://doi.org/10.15406/iratj.2017.02.00018" @default.
- W2626067139 hasPublicationYear "2017" @default.
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