Sentiment analysis is a powerful tool for understanding customer feedback, social media comments, and product reviews. It allows us to programmatically determine whether a piece of text is positive, negative, or neutral. While complex models like Transformers (e.g., BERT) often grab the headlines, the classic Multinomial Naive Bayes classifier remains a surprisingly effective, efficient, and interpretable baseline, especially for text-based tasks.
In this guide, we’ll walk through a complete sentiment analysis project using Python and Scikit-learn. We’ll cover: