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Statut |
Confirmé |
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Série |
IPHT-STA |
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Domaines |
cond-mat |
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Date |
Lundi 2 Octobre 2017 |
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Heure |
11:00 |
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Institut |
IPHT |
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Salle |
Salle Claude Itzykson, Bât. 774 |
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Nom de l'orateur |
Aurélien Decelle |
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Prenom de l'orateur |
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Addresse email de l'orateur |
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Institution de l'orateur |
Lab. de Recherche en Informatique, Univ. Paris Sud, Orsay |
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Titre |
Spectral learning of Restricted Boltzmann Machines |
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Résumé |
In this presentation I will expose our recent results on the Restricted Boltzman Machine (RBM). The RBM is a generative model very similar to the Ising model, it is composed of both visible and hidden binary variables, and traditionally used in the context of machine learning. In this context, the goal is to inferred the parameters of the RBM such that it reproduces correctly a dataset's distribution. Although they have been widely used in computer science, the phase diagram of this model is not known precisely in the context of learning. In particular, it is not known how the parameters influence the learning, and what exactly is learned within the parameters of the model. In our work, we show how the SVD of the data governs the first phase of the learning and how this decomposition helps to dynamics and the equilibrium properties of the model. |
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Numéro de preprint arXiv |
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Commentaires |
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