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Sentiment classification within online social media using whale optimization algorithm and social impact theory based optimization

Sinem Akyol and Bilal Alatas

Physica A: Statistical Mechanics and its Applications, 2020, vol. 540, issue C

Abstract: In recent years, social networks have become an important part of daily life and are becoming increasingly important. In this study, sentiment analysis or opinion mining, which is one of the most well-known social network analysis problems, is considered as an optimization problem for the first time. In the same way, for the first time, sentiment analysis is considered as a multi-objective problem. Whale Optimization Algorithm and Social Impact Theory based Optimization Algorithm, which are the current intelligent optimization algorithms, are adapted for the sentiment analysis problem. Furthermore, memory feature is integrated into Social Impact Theory based Optimization Algorithm in order to obtain effective results in this study. The obtained results from the proposed algorithms are also compared with thirty-three supervised learning algorithms within real IMDB, Polarity, and Amazon data sets. In order to evaluate the performance of the results; accuracy percentage, precision, recall, F-Measure, and MCC that are the five most commonly used measure in the literature are used. When the results are examined, it is observed that adapted metaheuristic optimization algorithms give more successful results in sentiment analysis problem.

Keywords: Social network analysis; Sentiment analysis; Opinion mining; Whale optimization algorithm; Social impact theory based optimization algorithm (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1016/j.physa.2019.123094

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