Sentiment Analysis COVID 19 Twitter

System Flowchart

Dataset

https://www.kaggle.com/datasets/dionisiusdh/covid19-indonesian-twitter-sentiment

Method

Prerocessing

• Case Folding
• Tokenizing
• Filtering
• Word Handling
• Stemming

Feature Selection

• TF-IDF

Classification

• Logistic Regression

Handling Imbalance

• Undersampling
• Oversampling
• SMOTE
• Cost-Sensitive Learning
• Bagging
• Tomek Links

Data Exploration

Class

positif = 23521

negatif = 20055

netral = 9383

Top Features

• Positive Class
• Negative Class
• Neutral Class

Word Cloud

• Positive Class
• Negative Class
• Neutral Class

Evaluation

Accuracy

Classification Report