Vlassis Krikos
ABSTRACT
Web Directories are repositories of Web pages organized in a hierarchy of topics and sub-topics. In this paper, we present DirectoryRank, a ranking framework that orders the pages within a given topic according to how informative they are about the topic. Our method works in three steps: first, it processes Web pages within a topic in order to extract structures that are called lexical chains, which are then used for measuring how informative a page is for a particular topic. Then, it measures the relative semantic similarity of the pages within a topic. Finally, the two metrics are combined for ranking all the pages within a topic before presenting them to the users.
- Google Directory http://dir.google.com/.Google Scholar
- MultiWordNet Domains http://wndomains.itc.it/.Google Scholar
- Open Directory Project http://dmoz.com/.Google Scholar
- Sumo Ontology http://ontology.teknowledge.com/.Google Scholar
- WordNet 2.0 http://www.cogsci.princeton.edu/wn/.Google Scholar
- Barzilay R Lexical chains for text summarization. Master's Thesis, Ben-Gurion University, 1997.Google Scholar
- Bharat K and Mihaila G. Hilltop: a search engine based on expert documents: http://www.cs.toronto.edu/georgem/hilltop/.Google Scholar
- Kleinberg J. Authoritative sources in a hyperlinked environment. In Journal of the ACM, 46(5), 1999, 604--632. Google ScholarDigital Library
- Haveliwala T. Topic sensitive PageRank. In Proceedings of the 11th WWW Conference, 2002, 517--526. Google ScholarDigital Library
- Ntoulas A., Cho J. and Olston Ch. What's new on the web? The evolution of the web from a search engine perspective. In Proceedings of the 13th WWW Conference, 2004, 1--12. Google ScholarDigital Library
- Page L., Brin S., Motwani R. and Winograd T. The PageRank citation ranking: Bringing order to the web. Available at http://dbpubs.stanford.edu:8090/pub/1999-66.Google Scholar
- Song Y.I., Han K.S. and Rim H.C. A term weighting method based on lexical chain for automatic summarization. In Proceedings of the 5 th CICLing Conference, 2004, 636--639.Google ScholarCross Ref
- Stamou S., Krikos V., Kokosis P., Ntoulas A. and Christodoulakis D. Web directory construction using lexical chains. In Proceedings of the 10 th NLDB Conference 2005, 138--149. Google ScholarDigital Library
- Wang Y. and DeWitt D. Computing PageRank in a distributed internet search system. In Proc. of the 30th VLDB Conf., 2004. Google ScholarDigital Library
Index Terms
- DirectoryRank: ordering pages in web directories
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