Text categorization, the task of assigning a label or category to an entire text or document.
- sentiment analysis
- spam detection
- subject category or topic label
Probabilistic classifier additionally will tell us the probability of the observation being in the class.
Generative classifiers like naive Bayes build a model of how a class could generate some input data.
Discriminative classifiers like logistic regression instead learn what features from the input are most useful to discriminate between the different possible classes.
