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Node models for macroscopic simulation have attracted relatively little attention in the literature. Nevertheless, in dynamic… Expand To take the first step beyond keyword-based search toward entity-based search, suitable token spans ("spots") on documents must… Expand With the rapid growth of the Web, users easily get lost in the rich hyper structure. Providing the relevant information to users… Expand Hypertext poses new research challenges for text classification. Hyperlinks, HTML tags, category labels distributed over linked… Expand 1 Self-organizing Structured P2P Systems In the P2P community a fundamental distinction is made among unstructured and structured… Expand With the growth of the Web, there has been a rapid increase in the number of users who need to access online databases without… Expand An important class of searches on the world-wide-web has the goal to find an entry page (homepage) of an organisation. Entry page… Expand The use of link analysis and page popularity in search engines has grown recently to improve query result rankings. Since the… Expand Web search engines generally treat search requests in isolation. The results for a given query are identical, independent of the… Expand In this paper we study in what order a crawler should visit the URLs it has seen, in order to obtain more "important" pages first… Expand