Transcription of Sentiment Analysis and Opinion Mining
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Sentiment Analysis and Opinion Mining April 22, 2012 Bing Liu Draft: Due to copyediting, the published version is slightly different Bing Liu. Sentiment Analysis and Opinion Mining , Morgan & Claypool Publishers, May 2012. Sentiment Analysis and Opinion Mining 2 Table of Contents Preface ..5 Sentiment Analysis : A Fascinating Problem ..7 Sentiment Analysis Applications ..8 Sentiment Analysis Research ..10 Different Levels of Analysis .. 10 Sentiment Lexicon and Its Issues .. 12 Natural Language Processing Issues .. 13 Opinion Spam Detection ..14 What s Ahead ..14 The Problem of Sentiment Analysis ..16 Problem Definitions ..17 Opinion Defintion .. 17 Sentiment Analysis Tasks .. 21 Opinion Summarization ..24 Different Types of Opinions ..25 Regular and Comparative Opinions .. 25 Explicit and Implicit Opinions.
sentiment analysis is now right at the center of the social media research. Hence, research in sentiment analysis not only has an important impact on NLP, but may also have a profound impact on management sciences, political science, economics, and social sciences as they are all affected by people’s opinions.
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