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Paper Abstract and Keywords
Presentation 2016-05-12 10:50
[Encouragement Talk] A Novel Approach for Multi-Class Sentiment Analysis in Twitter
Mondher Bouazizi, Tomoaki Ohtsuki (Keio Univ.) ASN2016-3
Abstract (in Japanese) (See Japanese page) 
(in English) Many works were conducted on the automatic sentiment analysis and opinion mining. However, most of these works were oriented towards the classification of texts into positive and negative. In this report, we propose a pattern-based approach that goes deeper in the classification of texts collected from Twitter (i.e., tweets) and classifies the tweets into 7 different classes. Experiments show that our approach reaches an accuracy of classification equal to 56.9% and a precision level of sentimental tweets (other than neutral and sarcastic) equal to 72.6%. Nevertheless, the approach proves to be very accurate in binary classification (i.e., classification into ?positive? and ?negative?) and ternary classification (i.e., classification into ?positive?, ?negative? and ?neutral?): in the former case, we reach an accuracy of 87.5% for the same dataset used after removing neutral tweets, and in the latter case, we reached an accuracy of classification of 83.0%.
Keyword (in Japanese) (See Japanese page) 
(in English) Twitter / sentiment analysis / opinion mining / / / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 22, ASN2016-3, pp. 13-18, May 2016.
Paper # ASN2016-3 
Date of Issue 2016-05-05 (ASN) 
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee ASN  
Conference Date 2016-05-12 - 2016-05-13 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To ASN 
Conference Code 2016-05-ASN 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Novel Approach for Multi-Class Sentiment Analysis in Twitter 
Sub Title (in English)  
Keyword(1) Twitter  
Keyword(2) sentiment analysis  
Keyword(3) opinion mining  
1st Author's Name Mondher Bouazizi  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Tomoaki Ohtsuki  
2nd Author's Affiliation Keio University (Keio Univ.)
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Date Time 2016-05-12 10:50:00 
Presentation Time 25 
Registration for ASN 
Paper # IEICE-ASN2016-3 
Volume (vol) IEICE-116 
Number (no) no.22 
Page pp.13-18 
#Pages IEICE-6 
Date of Issue IEICE-ASN-2016-05-05 

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