Hello Abhay,

      I appreciate your interest towards Sentiment analysis in Machine learning and artificial intelligence and I'm here to help you regarding your query !

   So, as per my knowledge, sentiment analysis is a natural language which occur by processing the algorithm, which in turn gives you a brief idea regarding positive, negative and neutral segments of texts. Almost, All the companies and social apps depend on this and Machine learning to work better. Generally it enhances the ability of Machine learning since it is used to verify automatically whether the text expresses positive, negative or a neutral opinion about an entity. Basically, decision trees machine learning algorithms are used for sentiment analysis in the respective framework. 

Hope this helps !

Good luck !