Journal of Informatics Development
Vol. 3 No. 1 (2024): Oktober 2024

Sentiment Analysis of Ijen Crater Reviews using Decision Tree Classification and Oversampling Optimization

Hizham, Fadhel Akhmad (Unknown)
Asyari, Hasyim (Unknown)
Urrochman, Maysas Yafi (Unknown)



Article Info

Publish Date
31 Oct 2024

Abstract

Sentiment analysis is a text mining technique that classifies content as positive, negative, or neutral polarity in each sentence or document. These lines or papers may be user reviews assessing the quality of a product or material supplied to them. The purpose of this study is to better understand the function of sentiment analysis in assessing evaluations of the Ijen Crater tourist destination based on Google Maps user comments. This study is conducted in four steps, beginning with data gathering in the form of Google Maps evaluations obtained by data scraping. Following data collection, text preparation includes case folding, tokenization, stopword elimination, and stemming. Following text preprocessing, the next stage is imbalaced data optimization, which involves modifying the minority class samples to be nearly equal to the majority class by randomly duplicating minority class samples. Then, each review is categorized according to sentiment using the Decision Tree (DT) method. Testing has done by comparing DT without optimization and DT with SMOTE-ENN and ADASYN optimization. The result shown DT with SMOTE-ENN optimization has the best accuracy improvement with 1.62%, from 96.94% to 98.56%.

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Journal Info

Abbrev

jid

Publisher

Subject

Computer Science & IT

Description

Focus and Scope Journal of Informatics Development cover all topics under the fields of Informatics, Information System, Information Technology, Computer Science, and Computer Engineering. Informatics and Information system IT Audit Software Engineering Big Data and Data Mining Internet Of Thing ...