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.
Sentiment analysis and opinion mining mainly focuses on opinions which express or imply positive or negative sentiments. Although linguistics and natural language processing (NLP) have a long history, little research had been done about people’s opinions and sentiments before the year 2000. Since then, the field has become a very active research
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