Abstract: Sentiment Analysis also called as opinion mining is a type of natural language processing for making out the mood of the people about a particular product or event etc., by building a system to extract and classify opinions on a product. For example human opinion can be positive and negative or both or neither. Opinions change every day. Natural language processing techniques are applied to extract emotions from unstructured data.

Keywords: Sentiment analysis, Natural Language Processing (NLP), Machine learning, Data Retrieval

| DOI: 10.17148/IJIREEICE.2019.7109