It is suitable for students, researchers and practitioners who are interested in social media analysis in general and sentiment analysis in particular. It covers all important topics and the latest developments in the field with over 400 references. This book is a comprehensive introductory and survey text. This is true not only for individuals but also for organizations. For this reason, when we need to make a decision we often seek out the opinions of others.

Our beliefs and perceptions of reality, and the choices we make, are largely conditioned on how others see and evaluate the world. Sentiment analysis systems are being applied in almost every business and social domain because opinions are central to almost all human activities and are key influencers of our behaviors. For the first time in human history, we now have a huge volume of opinionated data recorded in digital form for analysis. The growing importance of sentiment analysis coincides with the growth of social media such as reviews, forum discussions, blogs, micro-blogs, Twitter, and social networks. In fact, this research has spread outside of computer science to the management sciences and social sciences due to its importance to business and society as a whole. It is one of the most active research areas in natural language processing and is also widely studied in data mining, Web mining, and text mining. Sentiment analysis and opinion mining is the field of study that analyzes people's opinions, sentiments, evaluations, attitudes, and emotions from written language.

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