Abstract

In today’s state of affairs, information gathering has become a vital aspect of human behavior. We are always curious to know what others think about a particular thing. With the evolution in web technology, online shopping has become quite popular. It additionally provides a platform to share experiences and feedbacks associated with a selected product. The reviews on these sites reflect whether the product is good or bad and helps the potential customers to take the right decision. Sentiment analysis is a method using which information can be extracted from these reviews, analyzed and classified as positive, negative or neutral. Thus, the opinions gathered will facilitate to predict the online customer’s preferences and it can be beneficial for economic and marketing research. This paper presents a survey covering the techniques and methods in sentiment analysis and also the challenges appearing in this field.