document: Automatic generation of link collections and their visualization In this paper , we describe a method of generating link collections in a user-specified category by comprehensively collecting existing link collections and analyzing their hyperlink references . Moreover , we propose a visualization method for a bird 's - eye view of the generated link collections . Our methods are effective in grasping intuitively the trend of significant sites and keywords in a category .
doc_bio_tags: O O O O O O O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O