A domain cluster interface for WWW search

Because of the recent explosive increase in the number of WWW documents, directory services are becoming indispensable. In the keyword search function of most directory services, search results are displayed as a URL list ordered by importance as calculated by the system, but the order sometimes does not have any meaning to the user since the calculation algorithm is a black box. In addition, it is difficult to find useful documents from a long list. To solve this problem, the authors have developed a new WWW search system that clusters the documents in the search results by organization name, derived from its URL domain name. The system displays the clusters in a hierarchical tree view form.