A method (and system) for clustering a plurality of items. Each of the items includes information. The method includes inputting a plurality of items. Each of the items includes information. The items are provided into a clustering process. The method also inputs an initial organization structure into the clustering process. The initial organization structure includes one or more categories, at least one of the categories being associated with one of the items. The method processes the plurality of items based upon at least the initial organization structure and the information in each of the items; and determines a resulting organization structure based upon the processing. The resulting organization structure relates to the initial organization structure.