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Paper Abstract and Keywords
Presentation 2012-06-29 10:10
Clustering of Text Documents with Time Series Features
Reiko Hamada, Shin'ichi Satoh (NII) NLC2012-2 PRMU2012-22
Abstract (in Japanese) (See Japanese page) 
(in English) Most traditional text clustering methods are based on “bag of words” representation. However, since topics in closed captions are very short, it is difficult to supply enough “bag of words” information. In this paper, we present a new approach for topic clustering on closed captions. First, we clustered one-year closed captions manually, and discovered that topics categorized into “accidents” or “disasters” shows particular cluster- and time- distributions. Therefore we proposed un-supervised clustering method using temporal information adding to conventional word vector distance. Furthermore, the accuracy was improved by changing the linkage criteria as the clustering process progresses. Our experimental results show the effectiveness of combination of time and word information.
Keyword (in Japanese) (See Japanese page) 
(in English) Text Processing / Clustering / Temporal Information / / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 111, PRMU2012-22, pp. 7-12, June 2012.
Paper # PRMU2012-22 
Date of Issue 2012-06-22 (NLC, PRMU) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee PRMU NLC  
Conference Date 2012-06-29 - 2012-06-29 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To PRMU 
Conference Code 2012-06-PRMU-NLC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Clustering of Text Documents with Time Series Features 
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Keyword(1) Text Processing  
Keyword(2) Clustering  
Keyword(3) Temporal Information  
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1st Author's Name Reiko Hamada  
1st Author's Affiliation National Institute of Informatics (NII)
2nd Author's Name Shin'ichi Satoh  
2nd Author's Affiliation National Institute of Informatics (NII)
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Speaker Author-1 
Date Time 2012-06-29 10:10:00 
Presentation Time 30 minutes 
Registration for PRMU 
Paper # NLC2012-2, PRMU2012-22 
Volume (vol) vol.112 
Number (no) no.110(NLC), no.111(PRMU) 
Page pp.7-12 
#Pages
Date of Issue 2012-06-22 (NLC, PRMU) 


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