Trajectory Database Release with Differential Privacy Guarantee

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Deldar F.; ABADI M.

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Journal Paper

Paper Information

Journal: JOURNAL OF ELECTRONIC AND CYBER DEFENCE Year:2021 | Volume:9 | Issue:1 (33) Page(s): 29-42

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Information Journal Paper

Title

Trajectory Database Release with Differential Privacy Guarantee

Author(s)

Deldar F. | ABADI M. | Issue Writer Certificate

Keywords

Differential PrivacyQ1

Trajectory Database ReleaseQ1

Noisy Path TreeQ1

Trajectory PatternQ1

Abstract

Over the last years, several differentially private mechanisms have been proposed to answer statistical queries over trajectory databases. However, most of these mechanisms aim to answer statistical queries without releasing trajectories. In this paper, we present DP-STDR; a new differentially private mechanism that releases synthetic trajectories for data analysis purposes while preserving spatial and temporal utilities. DP-STDR keeps some main spatial, temporal, and statistical properties of original trajectories and defines a new differentially private tree structure to keep the most probable paths with different lengths and different starting points. This tree structure is used to generate synthetic trajectories. Our experiments show that DP-STDR enhances the utility of query answers and better preserves the main spatial, temporal, and statistical properties of original trajectories in comparison to prior related work.

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APA: Copy

Deldar, F., & ABADI, M.. (2021). Trajectory Database Release with Differential Privacy Guarantee. JOURNAL OF ELECTRONIC AND CYBER DEFENCE, 9(1 (33) ), 29-42. SID. https://sid.ir/paper/388032/en

Vancouver: Copy

Deldar F., ABADI M.. Trajectory Database Release with Differential Privacy Guarantee. JOURNAL OF ELECTRONIC AND CYBER DEFENCE[Internet]. 2021;9(1 (33) ):29-42. Available from: https://sid.ir/paper/388032/en

IEEE: Copy

F. Deldar, and M. ABADI, “Trajectory Database Release with Differential Privacy Guarantee,” JOURNAL OF ELECTRONIC AND CYBER DEFENCE, vol. 9, no. 1 (33) , pp. 29–42, 2021, [Online]. Available: https://sid.ir/paper/388032/en

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