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Paper Abstract and Keywords
Presentation 2015-02-27 13:55
Keystroke dynamics-based user identification via n-graph paths for shorter characteristic texts
Yoshihiro Kaneko, Takuya Tsujimoto, Keisuke Ohshima, Atsushi Kato (Gifu Univ.) CAS2014-138 CS2014-110
Abstract (in Japanese) (See Japanese page) 
(in English) Needless to say, computer systems should be more secure for our safe life and society nowadays. A keystroke dynamics-based user authentication is known as one of potentially valid biometrics. We have so far dealt with a middle-size input, which is neither short text such as password nor long text such as free text. In our previous research, some middle-size input text composed of two hundred keystrokes provides less than 1% EER for fifty-one subjects. To revise data input situation, this report deals with shorter texts. To this end, we have asked totally twenty-nine subjects to type nine shorter texts of Japanese old poems, proverbs and palindromes individually. Although we have proposed digraph model for user authentication or identification, we have not made use of it sufficiently. This report proposes to use size and kind of directed paths composed of n consecutive keys on that model to find different subjects beforehand. Since those paths depend on data filtering, our proposal requires tuning. As identification experiments for those nine characteristic texts, we have a little revised around 65% correctness from around 60% on average.
Keyword (in Japanese) (See Japanese page) 
(in English) keystroke dynamics / user identification / flight time / digraph model / n-graph paths / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 462, CAS2014-138, pp. 101-105, Feb. 2015.
Paper # CAS2014-138 
Date of Issue 2015-02-19 (CAS, CS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF CAS2014-138 CS2014-110

Conference Information
Committee CAS CS  
Conference Date 2015-02-26 - 2015-02-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Tottori University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Network Processor, Signal Processing Circuits for Communication, Wireless LAN/PAN, etc. 
Paper Information
Registration To CAS 
Conference Code 2015-02-CAS-CS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Keystroke dynamics-based user identification via n-graph paths for shorter characteristic texts 
Sub Title (in English)  
Keyword(1) keystroke dynamics  
Keyword(2) user identification  
Keyword(3) flight time  
Keyword(4) digraph model  
Keyword(5) n-graph paths  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yoshihiro Kaneko  
1st Author's Affiliation Gifu University (Gifu Univ.)
2nd Author's Name Takuya Tsujimoto  
2nd Author's Affiliation Gifu University (Gifu Univ.)
3rd Author's Name Keisuke Ohshima  
3rd Author's Affiliation Gifu University (Gifu Univ.)
4th Author's Name Atsushi Kato  
4th Author's Affiliation Gifu University (Gifu Univ.)
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Speaker Author-1 
Date Time 2015-02-27 13:55:00 
Presentation Time 25 minutes 
Registration for CAS 
Paper # CAS2014-138, CS2014-110 
Volume (vol) vol.114 
Number (no) no.462(CAS), no.463(CS) 
Page pp.101-105 
#Pages 5 
Date of Issue 2015-02-19 (CAS, CS) 

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