By Vassilis Christophides, Dimitris Plexousakis, Michel Scholl and Sotirios Tourtounis. In: Proceedings of the 12th international conference on World Wide Web, 2003. Deals with optimization of the navigation through voluminous subsumption hierarchies ...
Paper by Ernesto Di Iorio, et. al. proposing a technique for finding lists of similar documents, based on a pair of signatures which take into account both the document contents and the hyperlink structure.
A good explanation about the convergence of various algorithms. This paper also describes an adaptive and on-line algorithm for computing the page importance. It can be used for focus crawling as well as for search engine's ranking.