[Forum SIS] Seminario CARON

[Matteo Ruggiero]

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STATISTICS SEMINARS  -  COLLEGIO CARLO ALBERTO
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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

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