Abstract: The process of assigning a quantitative value to a piece of text expressing a mood or effect is called Sentiment analysis. Comparison of several machine learning, feature extraction approaches, and parameter optimization was done to achieve the best accuracy. This paper proposes an approach to extracting comparison value of sentiment review using three features extraction: Word2vec, Doc2vec, Terms Frequency-Inverse Document Frequency (TF-IDF) with machine learning classification algorithms, such as Support Vector Machine (SVM), Naive Bayes and Decision Tree. Grid search algorithm is used to optimize the feature extraction and classifier parameter. The performance of these classification algorithms is evaluated based on accuracy. The approach that is used in this research succeeded to increase the classification accuracy for all feature extractions and classifiers using grid search hyperparameter optimization on varied pre-processed data.

Sani Muhammad Isa, Rizaldi Suwandi and Yosefina Pricilia Andrean, “Optimizing the Hyperparameter of Feature Extraction and Machine Learning Classification Algorithms” International Journal of Advanced Computer Science and Applications(IJACSA), 10(3), 2019. http://dx.doi.org/10.14569/IJACSA.2019.0100309

@article{Isa2019,
title = {Optimizing the Hyperparameter of Feature Extraction and Machine Learning Classification Algorithms},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2019.0100309},
url = {http://dx.doi.org/10.14569/IJACSA.2019.0100309},
year = {2019},
publisher = {The Science and Information Organization},
volume = {10},
number = {3},
author = {Sani Muhammad Isa and Rizaldi Suwandi and Yosefina Pricilia Andrean}
}