Search Results for author: Giuseppe Genovese

Found 5 papers, 1 papers with code

Pattern reconstruction with restricted Boltzmann machines

no code implementations14 May 2022 Giuseppe Genovese

We identify an effective energy function describing the zero-temperature landscape on the visible units and depending only on the tail behaviour of the hidden layer prior distribution.

Retrieval

Universal approximation of credit portfolio losses using Restricted Boltzmann Machines

1 code implementation22 Feb 2022 Giuseppe Genovese, Ashkan Nikeghbali, Nicola Serra, Gabriele Visentin

We introduce a new portfolio credit risk model based on Restricted Boltzmann Machines (RBMs), which are stochastic neural networks capable of universal approximation of loss distributions.

Management

Minimax formula for the replica symmetric free energy of deep restricted Boltzmann machines

no code implementations15 May 2020 Giuseppe Genovese

We study the free energy of a most used deep architecture for restricted Boltzmann machines, where the layers are disposed in series.

Phase Diagram of Restricted Boltzmann Machines and Generalised Hopfield Networks with Arbitrary Priors

no code implementations20 Feb 2017 Adriano Barra, Giuseppe Genovese, Peter Sollich, Daniele Tantari

Restricted Boltzmann Machines are described by the Gibbs measure of a bipartite spin glass, which in turn corresponds to the one of a generalised Hopfield network.

Retrieval

Phase transitions in Restricted Boltzmann Machines with generic priors

no code implementations9 Dec 2016 Adriano Barra, Giuseppe Genovese, Peter Sollich, Daniele Tantari

We study Generalised Restricted Boltzmann Machines with generic priors for units and weights, interpolating between Boolean and Gaussian variables.

Retrieval

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