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Sentiment Analysis and Opinion Mining by Bing Liu

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CHAPTER 7

Opinion Summarization

As discussed in Chapter 2, in most sentiment analysis applications, one needs to study opinions from many people because due to the subjective nature of opinions, looking at only the opinion from a single person is usually insufficient. Some form of summary is needed. Chapter 2 indicated that the opinion quintuple provides the basic information for an opinion summary. Such a summary is called an aspect-based summary (or feature-based summary) and was proposed in Hu and Liu (2004) and Liu et al. (2005). Much of the opinion summarization research uses related ideas. This framework is also widely applied in industry. For example, the sentiment analysis systems of Microsoft Bing and Google Product Search use this ...

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