MHSubLex: Using Metaheuristic Methods for Subjectivity Classification of Microblogs

In Web 2.0, people are free to share their experiences, views, and opinions. One of the problems that arises in web 2.0 is the sentiment analysis of texts produced by users in outlets such as Twitter. One of main the tasks of sentiment analysis is subjectivity classification. Our aim is to classify...

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Main Authors: H.R Keshavarz, M. Saniee Abadeh
Format: Article
Language:English
Published: Shahrood University of Technology 2018-07-01
Series:Journal of Artificial Intelligence and Data Mining
Subjects:
Online Access:http://jad.shahroodut.ac.ir/article_1024_54b6a30a04624221ec25fc4a71bbcb81.pdf
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author H.R Keshavarz
M. Saniee Abadeh
author_facet H.R Keshavarz
M. Saniee Abadeh
author_sort H.R Keshavarz
collection DOAJ
description In Web 2.0, people are free to share their experiences, views, and opinions. One of the problems that arises in web 2.0 is the sentiment analysis of texts produced by users in outlets such as Twitter. One of main the tasks of sentiment analysis is subjectivity classification. Our aim is to classify the subjectivity of Tweets. To this end, we create subjectivity lexicons in which the words into objective and subjective words. To create these lexicons, we make use of three metaheuristic methods. We extract two meta-level features, which show the count of objective and subjective words in tweets according to the lexicons. We then classify the tweets based on these two features. Our method outperforms the baselines in terms of accuracy and f-measure. In the three metaheuristics, it is observed that genetic algorithm performs better than simulated annealing and asexual reproduction optimization, and it also outperforms all the baselines in terms of accuracy in two of the three assessed datasets. The created lexicons also give insight about the objectivity and subjectivity of words.
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spelling doaj.art-3561e42883c74572b8475c6f896b809e2022-12-21T19:48:13ZengShahrood University of TechnologyJournal of Artificial Intelligence and Data Mining2322-52112322-44442018-07-016234135310.22044/jadm.2017.10241024MHSubLex: Using Metaheuristic Methods for Subjectivity Classification of MicroblogsH.R Keshavarz0M. Saniee Abadeh1Faculty of Electrical & Computer Engineering, Tarbiat Modares University, Tehran, Iran.Faculty of Electrical & Computer Engineering, Tarbiat Modares University, Tehran, Iran.In Web 2.0, people are free to share their experiences, views, and opinions. One of the problems that arises in web 2.0 is the sentiment analysis of texts produced by users in outlets such as Twitter. One of main the tasks of sentiment analysis is subjectivity classification. Our aim is to classify the subjectivity of Tweets. To this end, we create subjectivity lexicons in which the words into objective and subjective words. To create these lexicons, we make use of three metaheuristic methods. We extract two meta-level features, which show the count of objective and subjective words in tweets according to the lexicons. We then classify the tweets based on these two features. Our method outperforms the baselines in terms of accuracy and f-measure. In the three metaheuristics, it is observed that genetic algorithm performs better than simulated annealing and asexual reproduction optimization, and it also outperforms all the baselines in terms of accuracy in two of the three assessed datasets. The created lexicons also give insight about the objectivity and subjectivity of words.http://jad.shahroodut.ac.ir/article_1024_54b6a30a04624221ec25fc4a71bbcb81.pdfevolutionary computationgenetic algorithmsNatural Language ProcessingPrediction MethodsSentiment Analysis
spellingShingle H.R Keshavarz
M. Saniee Abadeh
MHSubLex: Using Metaheuristic Methods for Subjectivity Classification of Microblogs
Journal of Artificial Intelligence and Data Mining
evolutionary computation
genetic algorithms
Natural Language Processing
Prediction Methods
Sentiment Analysis
title MHSubLex: Using Metaheuristic Methods for Subjectivity Classification of Microblogs
title_full MHSubLex: Using Metaheuristic Methods for Subjectivity Classification of Microblogs
title_fullStr MHSubLex: Using Metaheuristic Methods for Subjectivity Classification of Microblogs
title_full_unstemmed MHSubLex: Using Metaheuristic Methods for Subjectivity Classification of Microblogs
title_short MHSubLex: Using Metaheuristic Methods for Subjectivity Classification of Microblogs
title_sort mhsublex using metaheuristic methods for subjectivity classification of microblogs
topic evolutionary computation
genetic algorithms
Natural Language Processing
Prediction Methods
Sentiment Analysis
url http://jad.shahroodut.ac.ir/article_1024_54b6a30a04624221ec25fc4a71bbcb81.pdf
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