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Paper Abstract and Keywords
Presentation 2018-10-11 15:40
On Information Gained from Pseudonymized Location Traces
Takao Murakami (AIST) BioX2018-22
Abstract (in Japanese) (See Japanese page) 
(in English) Re-identification attacks for pseudonymized location traces have been widely studied to understand the risk of location privacy. The re-identification attack for pseudonymized traces can be regarded as biometric identification based on behavioral characteristics of users. However, no studies have evaluated the risk of re-identification by comparing it with the performance of biometric identification such as fingerprint identification and face identification, to our knowledge. In this paper, for more intuitive understanding of the risk of re-identification, we evaluate the BSE (Biometric System Entropy) of pseudonymized traces using the Foursquare dataset, and compare it with the BSE of fingerprint and face and password entropy of PINs.
Keyword (in Japanese) (See Japanese page) 
(in English) location privacy / pseudonymized trace / BSE / KL divergence / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 236, BioX2018-22, pp. 19-23, Oct. 2018.
Paper # BioX2018-22 
Date of Issue 2018-10-04 (BioX) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee BioX  
Conference Date 2018-10-11 - 2018-10-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Nobumoto Ohama Memorial Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Biometrics, etc. 
Paper Information
Registration To BioX 
Conference Code 2018-10-BioX 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On Information Gained from Pseudonymized Location Traces 
Sub Title (in English)  
Keyword(1) location privacy  
Keyword(2) pseudonymized trace  
Keyword(3) BSE  
Keyword(4) KL divergence  
1st Author's Name Takao Murakami  
1st Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
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Date Time 2018-10-11 15:40:00 
Presentation Time 30 
Registration for BioX 
Paper # IEICE-BioX2018-22 
Volume (vol) IEICE-118 
Number (no) no.236 
Page pp.19-23 
#Pages IEICE-5 
Date of Issue IEICE-BioX-2018-10-04 

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