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Paper Abstract and Keywords
Presentation 2014-07-11 11:10
An Empirical Study on Copy and Paste of Code in Software Development.
Takafumi Ohta, Hiroshi Igaki, Keisuke Hotta, Yoshiki Higo, Shinji Kusumoto (Osaka Univ.) SS2014-22 KBSE2014-25
Abstract (in Japanese) (See Japanese page) 
(in English) In order to improve productivity etc. copy and paste programming is performed. It is known that not
only source code but bugs are also copied between file in copy and paste programming. Therefore, code clone detection tools which extract the identical or similar code fragments (called code clone) in a source code are proposed.
On the other hand, it is also known that code clone detection tools detect lots of code clones which include the
source code which is not generated by copy and paste. In this paper, we analyzed the difference between the code
fragments generated by copy and paste, and the code clone detection result, through actual software development
project. As a result, a conventional code clone detection tool did not detect 74.6% of the code fragments generated
by copy and paste, and 95.7% of the result detected by the tool are not generated by copy and paste.
Keyword (in Japanese) (See Japanese page) 
(in English) Code Clone / Copy and Paste / Code Clone Detection Tool / / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 127, SS2014-22, pp. 135-140, July 2014.
Paper # SS2014-22 
Date of Issue 2014-07-02 (SS, KBSE) 
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)
Download PDF SS2014-22 KBSE2014-25

Conference Information
Committee KBSE SS IPSJ-SE  
Conference Date 2014-07-09 - 2014-07-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Furano-Bunka-Kaikan 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SS 
Conference Code 2014-07-KBSE-SS-SE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An Empirical Study on Copy and Paste of Code in Software Development. 
Sub Title (in English)  
Keyword(1) Code Clone  
Keyword(2) Copy and Paste  
Keyword(3) Code Clone Detection Tool  
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1st Author's Name Takafumi Ohta  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Hiroshi Igaki  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Keisuke Hotta  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Yoshiki Higo  
4th Author's Affiliation Osaka University (Osaka Univ.)
5th Author's Name Shinji Kusumoto  
5th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2014-07-11 11:10:00 
Presentation Time 30 minutes 
Registration for SS 
Paper # SS2014-22, KBSE2014-25 
Volume (vol) vol.114 
Number (no) no.127(SS), no.128(KBSE) 
Page pp.135-140 
#Pages 6 
Date of Issue 2014-07-02 (SS, KBSE) 

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