**************************************************************** STATISTICS SEMINARS - COLLEGIO CARLO ALBERTO ****************************************************************

Venerdi' 29 novembre 2013, alle ore 12:00, presso la sala rossa del Collegio Carlo Alberto, Moncalieri (TO), si terra' il seguente seminario:

François CARON (University of Oxford) A BAYESIAN NONPARAMETRIC MODEL FOR UNDIRECTED AND MULTI-EDGES NETWORKS

Abstract: In this talk, I will present ongoing work on a Bayesian nonparametric specification for either undirected or multi-edge directed networks, building on the framework of completely random measures. The formulation allows for an unbounded number of nodes in the network, while encouraging a sparse set of interactions. Importantly, as demonstrated empirically, the model captures salient features of real world networks like power-law degree distributions with possible exponential cut-off in the tails. These properties, in addition to sparsity, are determined by three hyperparameters. I will also discuss an approach for scaling computations to large networks. This is joint work with Emily Fox (University of Washington).

Tutti gli interessati sono invitati a partecipare.

Il seminario e' organizzato dalla "de Castro" Statistics Initiative (http://www.carloalberto.org/stats) in collaborazione con il Collegio Carlo Alberto. Il programma dei seminari puo' essere consultato alla pagina http://www.carloalberto.org/events/seminars/statistics/

Cordiali saluti, Matteo Ruggiero

--------- Matteo Ruggiero University of Torino & Collegio Carlo Alberto http://web.econ.unito.it/ruggiero