Determining the Sentiment of a Document

Understanding sentiment analysis

Sentiment analysis extracts subjective emotional intent from text. It attempts to attach positive or negative values. Sometimes, it may provide additional ratings for anger, anticipation, disgust, fear, joy, sadness, surprise, or trust.

Sentiment analysis can be a simple rule-based system, such as counting the number of positive and negative words. It may also be based on a more complex machine learning algorithm, such as a support vector machine (SVM) or a recurrent neural network (RNN).

Sentiment analysis is ...