115 citations · 454 across the 23 of their papers we have counts for
16 papers · 1 filter
Dreaming improves memorization in a Hopfield model with bounded synaptic strength
Enzo Marinari, Saverio Rossi, Francesco Zamponi
The Hopfield model provides a paradigmatic framework for associative memory. Its classical implementation, based on the Hebbian learning rule, suffers from catastrophic forgetting:…
Inferring Concepts from Noisy Examples in Hopfield-like Neural Networks
Marco Benedetti, Giulia Fischetti, Enzo Marinari +2
We study a variant of the pseudo-inverse learning rule for Hopfield-like Neural Networks, which allows the network to infer archetypal concepts on the basis of a limited number of…
Spin-glass dynamics: experiment, theory and simulation
E. D. Dahlberg, I. González-Adalid Pemartín, E. Marinari +8
The study of spin-glass dynamics, long considered the paradigmatic complex system, has reached important milestones. The availability of single crystals has allowed the experimenta…
A Very Effective and Simple Diffusion Reconstruction for the Diluted Ising Model
Stefano Bae, Enzo Marinari, Federico Ricci-Tersenghi
Diffusion-based generative models are machine learning models that use diffusion processes to learn the probability distribution of high-dimensional data. In recent years, they hav…
Multiscaling in the 3D critical site-diluted Ising ferromagnet
E. Marinari, V. Martin-Mayor, G. Parisi +2
We have studied numerically the appearance of multiscaling behavior in the three-dimensional ferromagnetic Ising site diluted model, in the form of a multifractal distribution of t…
Eigenvector Dreaming
Marco Benedetti, Louis Carillo, Enzo Marinari +1
Among the performance-enhancing procedures for Hopfield-type networks that implement associative memory, Hebbian Unlearning (or dreaming) strikes for its simplicity and its clear b…
Multifractality in spin glasses
Janus Collaboration, M. Baity-Jesi, E. Calore +21
We unveil the multifractal behavior of Ising spin glasses in their low-temperature phase. Using the Janus II custom-built supercomputer, the spin-glass correlation function is stud…
How we are leading a 3-XORSAT challenge: from the energy landscape to the algorithm and its efficient implementation on GPUs
M. Bernaschi, M. Bisson, M. Fatica +4
A recent 3-XORSAT challenge required to minimize a very complex and rough energy function, typical of glassy models with a random first order transition and a golf course like ener…
Spin-glass dynamics in the presence of a magnetic field: exploration of microscopic properties
I. Paga, Q. Zhai, M. Baity-Jesi +24
The synergy between experiment, theory, and simulations enables a microscopic analysis of spin-glass dynamics in a magnetic field in the vicinity of and below the spin-glass transi…
Dynamic Variational Study of Chaos: Spin Glasses in Three Dimensions
A. Billoire, L. A. Fernandez, A. Maiorano +6
We have introduced a variational method to improve the computation of integrated correlation times in the Parallel Tempering Dynamics, obtaining a better estimate (a lower bound, a…
Critical parameters of the three-dimensional Ising spin glass
Janus Collaboration, M. Baity-Jesi, R. A. Baños +22
We report a high-precision finite-size scaling study of the critical behavior of the three-dimensional Ising Edwards-Anderson model (the Ising spin glass). We have thermalized latt…
Dynamical transition in the D = 3 Edwards-Anderson spin glass in an external magnetic field
Janus Collaboration, M. Baity-Jesi, R. Alvarez Baños +22
We study the off-equilibrium dynamics of the three-dimensional Ising spin glass in the presence of an external magnetic field. We have performed simulations both at fixed temperatu…
Reconfigurable computing for Monte Carlo simulations: results and prospects of the Janus project
Janus Collaboration, M. Baity-Jesi, R. A. Banos +24
We describe Janus, a massively parallel FPGA-based computer optimized for the simulation of spin glasses, theoretical models for the behavior of glassy materials. FPGAs (as compare…
Finite-size scaling analysis of the distributions of pseudo-critical temperatures in spin glasses
A. Billoire, L. A. Fernandez, A. Maiorano +3
Using the results of large scale numerical simulations we study the probability distribution of the pseudo critical temperature for the three-dimensional Edwards-Anderson Ising spi…
Sample-to-sample fluctuations of the overlap distributions in the three-dimensional Edwards-Anderson spin glass
The Janus Collaboration, R. Alvarez Baños, A. Cruz +21
We study the sample-to-sample fluctuations of the overlap probability densities from large-scale equilibrium simulations of the three-dimensional Edwards-Anderson spin glass below…
Nature of the spin-glass phase at experimental length scales
Janus Collaboration, R. Alvarez Banos, A. Cruz +19
We present a massive equilibrium simulation of the three-dimensional Ising spin glass at low temperatures. The Janus special-purpose computer has allowed us to equilibrate, using p…