With the growth of internet community, many different text-based documents are produced. This paper presents an overview of the emerging field of emotion detection from text and describes the current generation of detection methods of emotions from the text. Emotion recognition in text is just one of the several dimensions of the task of making the computers make sense of emotions. In this study the main research focus will be on suggestions for designing more efficient and adaptive Natural Language Processing System for the detection of various emotions (sentiment analysis) on the basis of study of important recent techniques.

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Sentiment Sentiment Score Polarity Valence Semantic Ontology.