A Survey of sentiment analysis for Web texts

摘要

Sentiment analysis b a novel field of Web data mining, which has recently enjoyed a huge burst of research activity. Studies on this area aims at mining reviews of people for a certain product or event's topics by automatic classifying the reviews into positive or negative opinions. This technique has numerous applications, such as e-commerce, business-intelligence, public poll and so forth. In this paper, We first introduce the tasks of sentiment analysis, then introduce two main techniques for sentiment analysis, subsequently application domains of it is presented briefly, lastly point out the difficulties and challenges of the research subject.