10 Classification IV - exercise

Text Mining Course: Preprocessing, Transformation, and Classification Models (bonus exercise)

Unsupervised learning with a lexicon-driven sentiment predictor:
- Create document cells.
- Tag terms based on sentiment dictionaries.
- Extract and count positive and negative terms.
- Compute sentiment score based on the number of positive and negative terms.
- Predict sentiment labels based on score.
- Score prediction.

External resources

• Slides KNIME Analytics Platform Text Mining Course