Imbalanced Sentiment Analysis with XGBoost

This workflow shows how to import text from a csv file, convert it to documents, preprocess the documents and transform them into numerical document vectors. Finally two predictive models are trained on the vectors to predict the sentiment class of the documents.

External resources

• What's new in KNIME 4.6
• Read more about "Lexicon-based sentiment analysis: A tutorial"
• Sentiment Classification of Documents