Lexicon Generation Using Genetic Algorithm for Aspect-Based Sentiment Analysis

Autor: Hamidreza Keshavarz, Mohammad Erfan Mowlaei, Mohammad Saniee Abadeh
Rok vydání: 2018
Předmět:
Zdroj: 2018 IEEE 22nd International Conference on Intelligent Engineering Systems (INES).
DOI: 10.1109/ines.2018.8523902
Popis: Sentiment analysis is the task of extracting and analyzing opinions expressed in comments written in social media and websites and is performed to assist users and stakeholders to better understand the public opinion on a subject. In this paper, the main contribution is a lexicon generation method using genetic algorithm for aspect level sentiment analysis. The proposed method produces a lexicon which can be used in polarity detection of aspects in written comments and reviews. The proposed method is an extension over the ALGA algorithm developed to work on tweet level and in this paper, it is modified to fit in aspect level problems. The results of experiment on the SemEval-2014 dataset proves that the proposed lexicon can improve F-measure of polarity detection on subjective comments by at least 1.9 percentage points in Laptop domain compared to prominent lexicons such as AFINN and NRC.
Databáze: OpenAIRE