Grid-based Semantic Cloaking Method for Continuous Moving Object Anonymization (이동 객체 정보 보호를 위한 그리드 기반 시멘틱 클로킹 기법)

Xu Zhang (장욱); 신숭선; Gyoung-Bae Kim (김경배); HaeYoung Bae (배해영)

Grid-based Semantic Cloaking Method for Continuous Moving Object Anonymization

Journal of The Korea Society of Computer and Information
Abbr : JKSCI
2013, 18(3), pp.47-57
Publisher : The Korean Society Of Computer And Information
Research Area : Engineering > Computer Science

Xu Zhang ¹, 신숭선 ¹, Gyoung-Bae Kim ², HaeYoung Bae ¹

¹인하대학교
²서원대학교

Accredited

ABSTRACT

Location privacy has been a serious concern for mobile users who use location-based services to acquire geographical location continuously. Spatial cloaking technique is a well-known privacy preserving method, which blurs an exact user location into a cloaked area to meet privacy requirements. However, cloaking for continuous moving object suffers from cloaked area size problem as it is unlikely for all objects travel in the same direction. In this paper, we propose a grid-based privacy preservation method with an improved Earth Mover's Distance(EMD) metric weight update scheme for semantic cloaking. We also define a representative cloaking area which protects continuous location privacy for moving users. Experimental implementation and evaluation exhibit that our proposed method renders good efficiency and scalability in cloaking processing time and area size control. We also show that our proposed method outperforms the existing method by successfully protects location privacy of continuous moving objects against various adversaries

KEYWORDS

Location Privacy, Continuous Moving Object Anonymization, Semantic Cloaking, Location Based Service

Citation status

* References for papers published after 2023 are currently being built.

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Journal of The Korea Society of Computer and Information 2023 KCI Impact Factor : 0.65