Abstract
As a preparatory study for using emotion in advanced retrieval systems of books and movies, we analyzed expressions of emotion that appeared in film and book reviews, and defined the related components. First, through the manual analysis of 653 subjective expressions in 82 book reviews selected randomly from the web, we defined four major components related to expressions of emotion and their subcomponents: “Attitude”, “Subject”, “Object”, and “Reason” ; we analyzed the existence of each component and their combinations in the reviews. Second, we found that different writers stated different “Reasons” for the same “Emotion” about the same “Object” that tendency was confirmed in our additional analysis on emotion expressions, in which we focused on “Reasons” using different corpora consisting of film and book reviews and newspaper articles. Finally, we conducted experiments using 16 human subjects in two sessions of focused group interviews. The results showed that “Reasons” associated with emotion expressions appearing in film reviews are important and useful for users to select films relevant for them.
