Types of Sentiment Analysis
A basic task in sentiment analysis is classifying the polarity of a given text at the document, sentence, or feature/aspect level—whether the expressed opinion in a document, a sentence or an entity feature/aspect is positive, negative, or neutral.
Advanced, "beyond polarity" sentiment classification looks, for instance, at emotional states such as "angry", "sad", and "happy
Predictive analytics is an area of statistics that deals with extracting information from data and using it to predict trends and behavior patterns.
The enhancement of predictive web analytics calculates statistical probabilities of future events online.