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Reseach Article

A Sentiment Analysis Approach using Effective Feature Reduction Method

by Arash Mazidi, Elham Damghanijazi
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 170 - Number 4
Year of Publication: 2017
Authors: Arash Mazidi, Elham Damghanijazi
10.5120/ijca2017914815

Arash Mazidi, Elham Damghanijazi . A Sentiment Analysis Approach using Effective Feature Reduction Method. International Journal of Computer Applications. 170, 4 ( Jul 2017), 10-14. DOI=10.5120/ijca2017914815

@article{ 10.5120/ijca2017914815,
author = { Arash Mazidi, Elham Damghanijazi },
title = { A Sentiment Analysis Approach using Effective Feature Reduction Method },
journal = { International Journal of Computer Applications },
issue_date = { Jul 2017 },
volume = { 170 },
number = { 4 },
month = { Jul },
year = { 2017 },
issn = { 0975-8887 },
pages = { 10-14 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume170/number4/28057-2017914815/ },
doi = { 10.5120/ijca2017914815 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-07T00:18:11.832982+05:30
%A Arash Mazidi
%A Elham Damghanijazi
%T A Sentiment Analysis Approach using Effective Feature Reduction Method
%J International Journal of Computer Applications
%@ 0975-8887
%V 170
%N 4
%P 10-14
%D 2017
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Sentiment analysis has attracted researchers in recent years which aims to present an automatic method for analyzing comments, assessments, opinions and sentiments of a text. In this paper, Ngram feature vector and POS (Part of Speech) are extracted from text and it is tried to find a proper combination of feature vectors so that texts can be classified as positive and negative opinions. In order to choose the most useful features, information gain ratio is used, then machine learning algorithms are used to investigate the effect of different features on sentiment analysis. In this paper, 4 groups of data are studied including film evaluation, products' evaluation (including book, DVD and electronics). Classification results are studied for three types of feature vectors: Ngram feature vector, POS feature vector and combination feature vector of Ngram with POS. results show that combinational feature vector performs better in sentiment analysis. By combining features, Boolean Multinominal Naïve Bayes (BMNB) results are improved compared to support vector machine classification algorithm.

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Index Terms

Computer Science
Information Sciences

Keywords

Sentiment analysis Feature selection method machine learning support vector machine information gain information gain ratio.