· The emphatic pattern in ideological discourse and the Joint Topic and Perspective Model enable many interesting applications in text analysis and multimedia content understanding. At the corpus level, we show that ideological discourse can be reliably distinguished from non-ideological discourse. At the document level, we show that the perspective from which a document is written or a video is produced can be identified with high accuracy. At the sentence level, we extend the model to summarize an ideological document by selecting sentences that strongly express a particular perspective.
