Panoramic View System for extracting key sentences based on viewpoints and application to a search engine

The many resources on the World Wide Web have made it natural for us to extract available information from them. In order to get useful information, it is desirable to review many sources. Though summaries are useful, documents contain various viewpoints that should be summarized. Therefore, if the viewpoint of a summary is different from the user's, the user cannot grasp the contents of the document correctly, and the user has to read through the document to the end. In this paper, we present a system that summarizes a document based on a user's viewpoint according to the user's search keywords.