One multimedia application of NLP consists of automatically aligning emissions of different media depending on their content. The goal is for instance to detect when the same information in processed on TV, on the radio and in the newspaper.
Doctor Kurohashi's laboratory at Kyoto University has developed a system that automatically aligns news from TV broadcasts and newspapers. The system detects the words that appear in the different media and multiplies their frequencies by a weight that depends on their position (e.g. in the title, the headlines, the first paragraph of the text etc...). By this method, an alignment is obtained between newspaper articles and TV programs having many affinities.