Abstract: Analyzing relationship of news video stories is a special clustering of stories based on news events. "Story" is the unit which contains full semantic information in hierarchy units. It is the best semantic unit for video analyzing,searching and organizing. This paper gave an overview of existing method and classified them into three categories;the approach based on text similarity, the approach based on multi-modal similarity and the approach based on keyframe visual duplicate. Their advantages and limitation were discussed and compared in detail. At last, this paper presented some trends in this field.

Key words: News video, Story, Analyzing relationship