AndrL. L. deAquino CarlosMauricio S.Figueiredo EduardoFreireNakamura LucianaS.Buriol AntonioAlfredo FerreiraLoureiro AntônioOtávioFernandes ClaudionorJosé Nunes CoelhoJr. Data Stream Based Algorithms For Wireless Sensor Network Applications. IEEE Computer Society 869-876 2007 LucianaBuriol CarlosCastillo DeboraDonato StefanoLeonardi StefanoMillozzi Temporal Analysis of the Wikigraph IEEE Computer Society 45–51 2006 Wikipedia (www.wikipedia.org) is an online encyclopedia, available in more than 100 languages and comprising over 1 million articles in its English version. If we consider each Wikipedia article as a node and each hyperlink between articles as an arc we have a ?Wikigraph?, a graph that represents the link structure of Wikipedia. The Wikigraph differs from other Web graphs studied in the literature by the fact that there are timestamps associated with each node. The timestamps indicate the creation and update dates of each page, and this allows us to do a detailed analysis of the Wikipedia evolution over time. In the first part of this study we characterize this evolution in terms of users, editions and articles; in the second part, we depict the temporal evolution of several topological properties of the Wikigraph. The insights obtained from the Wikigraphs can be applied to large Web graphs from which the temporal data is usually not available. LucianaS.Buriol GereonFrahling StefanoLeonardi ChristianSohler Estimating Clustering Indexes in Data Streams. Springer 4698 618-632 2007 LucianaS.Buriol MauricioG. C.Resende MikkelThorup Survivable IP network design with OSPF routing. Networks 49 51-64 2007 ACapocci VServedio FColaiori LBuriol Preferential attachment in the growth of social networks: the case of Wikipedia Arxiv preprint physics 2006 A.Capocci V.D. P.Servedio F.Colaiori L.S.Buriol D.Donato S.Leonardi G.Caldarelli Preferential attachment in the growth of social networks: the case of Wikipedia 2006 We present an analysis of the statistical properties and growth of the free on-line encyclopedia Wikipedia. By describing topics by vertices and hyperlinks between them as edges, we can represent this encyclopedia as a directed graph. The topological properties of this graph are in close analogy with that of the World Wide Web, despite the very different growth mechanism. In particular we measure a scale–invariant distribution of the in– and out– degree and we are able to reproduce these features by means of a simple statistical model. As a major consequence, Wikipedia growth can be described by local rules such as the preferential attachment mechanism, though users can act globally on the network. A.Capocci V.D. P.Servedio F.Colaiori L.S.Buriol D.Donato S.Leonardi G.Caldarelli Preferential attachment in the growth of social networks: the case of Wikipedia 2006 We present an analysis of the statistical properties and growth of the free on-line encyclopedia Wikipedia. By describing topics by vertices and hyperlinks between them as edges, we can represent this encyclopedia as a directed graph. The topological properties of this graph are in close analogy with that of the World Wide Web, despite the very different growth mechanism. In particular we measure a scale–invariant distribution of the in– and out– degree and we are able to reproduce these features by means of a simple statistical model. As a major consequence, Wikipedia growth can be described by local rules such as the preferential attachment mechanism, though users can act globally on the network. AndreaCapocci VitoDomenico PietroServedio FrancescaColaiori LucianaS.Buriol DeboraDonato StefanoLeonardi GuidoCaldarelli Preferential attachment in the growth of social networks: the case of Wikipedia CoRR abs/physics/0602026 2006 AndreaCapocci VitoDomenico PietroServedio FrancescaColaiori LucianaS.Buriol DeboraDonato StefanoLeonardi GuidoCaldarelli Preferential attachment in the growth of social networks: the case of Wikipedia CoRR abs/physics/0602026 2006 VivianeMoreiraOrengo LucianaS.Buriol AlexandreRamosCoelho A Study on the Use of Stemming for Monolingual Ad-Hoc Portuguese Information Retrieval. Springer 4730 91-98 2006