Browsing by Subject "Web directories"

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    ItemOpen Access
    Efficient processing of category-restricted queries for web directories
    (Springer, 2008-03-04) Altıngövde, İsmail Şengör; Can, Fazlı; Ulusoy, Özgür
    We show that a cluster-skipping inverted index (CS-IIS) is a practical and efficient file structure to support category-restricted queries for searching Web directories. The query processing strategy with CS-IIS improves CPU time efficiency without imposing any limitations on the directory size. © 2008 Springer-Verlag Berlin Heidelberg.
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    ItemOpen Access
    Towards a quality service layer for Web 2.0
    (Springer, 2011-12) Schaal, M.; Davenport, David; Çevik, Ali Hamdi
    Despite the help of search engines and Web directories, identifying high quality content becomes increasingly difficult as the Internet gets ever more crowded with information. Prior approaches for filtering and searching content with respect to user-specific preferences do exist: Recommendation engines employ collaborative filtering to support subjective selection, (semi-)automatic page ranking algorithms utilize the hypertext link structure of the World Wide Web to assess page importance, and trust-based systems employ social network analysis to determine the most suitable Web pages. The use of implicit and explicit user feedback, however, is often either ignored or its exploitation is limited to isolated Web sites. We thus propose a quality overlay framework that enables the collection and processing of user-feedback, and the subsequent presentation of quality-enabled content for any Web-site. We present the quality overlay framework, propose an architecture for its realization, and validate our approach by scenarios and a detailed design with sample implementation. © 2011 Springer-Verlag.