The exponential growth of World-Wide Web (WWW) requires new and more efficient content distribution mechanisms. Web caching has shown to be a very efficient way to scale the WWW by reducing traffic in congested network links, decreasing latency to the clients, and reducing load in the origin servers. In this paper we study an emerging caching strategy called cache-satellite distribution. In a c...

A growing number of ontologies have been published on the Semantic Web by various parties, to be shared for describing things. Because of the decentralized nature of the Web, there often exist different but similar ontologies from overlapped domains, or even within the same domain. In this paper, we collect more than four thousand ontologies and perform a large-scale pairwise matching based on ...

Small-world networks permeate modern society. In this paper we present a methodology for creating and analyzing a practically limitless number of networks exhibiting small-world network properties. More precisely, we analyze networks whose nodes are Facebook groups sharing a common word in the group name and whose links are mutual members in any two groups. By analyzing several numerical charac...