Living Reference Work Entry

Encyclopedia of Machine Learning and Data Mining

pp 1-10

Date: Latest Version

Sentiment Analysis and Opinion Mining

  • Lei ZhangAffiliated withLinkedIn Email author 
  • , Bing LiuAffiliated withUniversity of Illinois at Chicago


With the rapid growth of social media, sentiment analysis, also called opinion mining, has become one of the most active research areas in natural language processing. Its application is also widespread, from business services to political campaigns. This article gives an introduction to this important area and presents some recent developments.