According to Wikipedia -
Sentiment analysis (also known as opinion mining or emotion AI) refers to the use of natural language processing, text analysis, computational linguistics, and biometrics to systematically identify, extract, quantify, and study affective states and subjective information.
Predict the sentiment of English corpus using LSTM.
Long short-term memory (LSTM) is an artificial recurrent neural network (RNN) architecture.
The paper on LSTM can be found here.