Dummy Generation Based on User-Movement Estimation for Location Privacy Protection

Location-based services (LBSs) have been becoming more common due to the prevalence of GPS-enabled devices. While LBSs bring many benefits for our daily lives, location information may reveal private information, rendering an important problem of protecting location privacy of users. To anonymize th...

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Main Authors: Shuhei Hayashida, Daichi Amagata, Takahiro Hara, Xing Xie
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8347080/
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author Shuhei Hayashida
Daichi Amagata
Takahiro Hara
Xing Xie
author_facet Shuhei Hayashida
Daichi Amagata
Takahiro Hara
Xing Xie
author_sort Shuhei Hayashida
collection DOAJ
description Location-based services (LBSs) have been becoming more common due to the prevalence of GPS-enabled devices. While LBSs bring many benefits for our daily lives, location information may reveal private information, rendering an important problem of protecting location privacy of users. To anonymize the locations of users, we focus on dummy-based approaches that generate dummies and their locations are sent along with the actual location of a user to an LBS provider. Although several existing studies developed dummy-based techniques, they assume unrealistic user mobility, e.g., users keep moving and do not stop or follow a pre-defined movement plan precisely. In this paper, we remove the unrealistic assumptions and require much easier input with respect to user movement, i.e., only a set of visiting points. Under the assumption, we propose a dummy generation method, estimation-based dummy trajectory generation (Edge). Based on the given visiting points, Edge estimates a user-movement plan and designs trajectories of dummies so that the adversaries cannot distinguish the user from dummies. We conduct extensive experiments using real map information, and the results show the efficiency and effectiveness of Edge.
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spelling doaj.art-b02fb4a8be604080a1a4abfdc3a60d162022-12-21T23:44:21ZengIEEEIEEE Access2169-35362018-01-016229582296910.1109/ACCESS.2018.28298988347080Dummy Generation Based on User-Movement Estimation for Location Privacy ProtectionShuhei Hayashida0https://orcid.org/0000-0002-2371-778XDaichi Amagata1https://orcid.org/0000-0001-8571-4931Takahiro Hara2Xing Xie3Department of Multimedia Engineering, Graduate School of Information Science and Technology, Osaka University, Suita, JapanDepartment of Multimedia Engineering, Graduate School of Information Science and Technology, Osaka University, Suita, JapanDepartment of Multimedia Engineering, Graduate School of Information Science and Technology, Osaka University, Suita, JapanMicrosoft Research Asia, Beijing, ChinaLocation-based services (LBSs) have been becoming more common due to the prevalence of GPS-enabled devices. While LBSs bring many benefits for our daily lives, location information may reveal private information, rendering an important problem of protecting location privacy of users. To anonymize the locations of users, we focus on dummy-based approaches that generate dummies and their locations are sent along with the actual location of a user to an LBS provider. Although several existing studies developed dummy-based techniques, they assume unrealistic user mobility, e.g., users keep moving and do not stop or follow a pre-defined movement plan precisely. In this paper, we remove the unrealistic assumptions and require much easier input with respect to user movement, i.e., only a set of visiting points. Under the assumption, we propose a dummy generation method, estimation-based dummy trajectory generation (Edge). Based on the given visiting points, Edge estimates a user-movement plan and designs trajectories of dummies so that the adversaries cannot distinguish the user from dummies. We conduct extensive experiments using real map information, and the results show the efficiency and effectiveness of Edge.https://ieeexplore.ieee.org/document/8347080/Location-based serviceslocation privacy
spellingShingle Shuhei Hayashida
Daichi Amagata
Takahiro Hara
Xing Xie
Dummy Generation Based on User-Movement Estimation for Location Privacy Protection
IEEE Access
Location-based services
location privacy
title Dummy Generation Based on User-Movement Estimation for Location Privacy Protection
title_full Dummy Generation Based on User-Movement Estimation for Location Privacy Protection
title_fullStr Dummy Generation Based on User-Movement Estimation for Location Privacy Protection
title_full_unstemmed Dummy Generation Based on User-Movement Estimation for Location Privacy Protection
title_short Dummy Generation Based on User-Movement Estimation for Location Privacy Protection
title_sort dummy generation based on user movement estimation for location privacy protection
topic Location-based services
location privacy
url https://ieeexplore.ieee.org/document/8347080/
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AT takahirohara dummygenerationbasedonusermovementestimationforlocationprivacyprotection
AT xingxie dummygenerationbasedonusermovementestimationforlocationprivacyprotection