no code implementations • 11 Sep 2023 • Maria Chiara Angelini, Angelo Giorgio Cavaliere, Raffaele Marino, Federico Ricci-Tersenghi
Is Stochastic Gradient Descent (SGD) substantially different from Glauber dynamics?
no code implementations • 8 Aug 2023 • Elena Agliari, Andrea Alessandrelli, Adriano Barra, Federico Ricci-Tersenghi
A modern challenge of Artificial Intelligence is learning multiple patterns at once (i. e. parallel learning).
no code implementations • 10 May 2023 • Raffaele Marino, Federico Ricci-Tersenghi
This work presents a systematic attempt at understanding the role of the mini-batch size in training two-layer neural networks.
no code implementations • 10 Oct 2022 • Daniele Ancora, Matteo Negri, Antonio Gianfrate, Dimitris Trypogeorgos, Lorenzo Dominici, Daniele Sanvitto, Federico Ricci-Tersenghi, Luca Leuzzi
In the field of disordered photonics, a common objective is to characterize optically opaque materials for controlling light delivery or performing imaging.
1 code implementation • 27 Jun 2022 • Maria Chiara Angelini, Federico Ricci-Tersenghi
In this comment, we show that a simple greedy algorithm, running in almost linear time, can find solutions for the MIS problem of much better quality than the GNN.
no code implementations • 26 Nov 2021 • Masoud Mohseni, Daniel Eppens, Johan Strumpfer, Raffaele Marino, Vasil Denchev, Alan K. Ho, Sergei V. Isakov, Sergio Boixo, Federico Ricci-Tersenghi, Hartmut Neven
In particular, for 90% of random 4-SAT instances we find solutions that are inaccessible for the best specialized deterministic algorithm known as Survey Propagation (SP) with an order of magnitude improvement in the quality of solutions for the hardest 10% instances.
no code implementations • 30 Jan 2021 • Matteo Bellitti, Federico Ricci-Tersenghi, Antonello Scardicchio
We study both classical and quantum algorithms to solve a hard optimization problem, namely 3-XORSAT on 3-regular random graphs.
Disordered Systems and Neural Networks Statistical Mechanics Quantum Physics
no code implementations • 17 Nov 2019 • Rafael Díaz Hernández Rojas, Giorgio Parisi, Federico Ricci-Tersenghi
Jamming is a phenomenon shared by a wide variety of systems, such as granular materials, foams, and glasses in their high density regime.
Statistical Mechanics Disordered Systems and Neural Networks
no code implementations • 29 May 2019 • Giulio Biroli, Chiara Cammarota, Federico Ricci-Tersenghi
In many high-dimensional estimation problems the main task consists in minimizing a cost function, which is often strongly non-convex when scanned in the space of parameters to be estimated.
1 code implementation • 31 Jan 2019 • Silvio Franz, Federico Ricci-Tersenghi, Jacopo Rocchi
We propose a new algorithm to learn the network of the interactions of pairwise Ising models.
Disordered Systems and Neural Networks
no code implementations • 16 Feb 2018 • Andrea Cavagna, Stefania Melillo, Leonardo Parisi, Federico Ricci-Tersenghi
Any 3D tracking algorithm has to deal with occlusions: multiple targets get so close to each other that the loss of their identities becomes likely.
no code implementations • 2 Nov 2016 • Jack Raymond, Federico Ricci-Tersenghi
Inference methods are often formulated as variational approximations: these approximations allow easy evaluation of statistics by marginalization or linear response, but these estimates can be inconsistent.
no code implementations • 30 Mar 2016 • Adel Javanmard, Andrea Montanari, Federico Ricci-Tersenghi
In this paper we study in detail several practical aspects of this new algorithm based on semidefinite programming for the detection of the planted partition.
no code implementations • 20 Aug 2015 • Raffaele Marino, Giorgio Parisi, Federico Ricci-Tersenghi
Discrete combinatorial optimization has a central role in many scientific disciplines, however, for hard problems we lack linear time algorithms that would allow us to solve very large instances.
no code implementations • 22 Apr 2009 • Federico Ricci-Tersenghi, Guilhem Semerjian
We introduce a version of the cavity method for diluted mean-field spin models that allows the computation of thermodynamic quantities similar to the Franz-Parisi quenched potential in sparse random graph models.
Disordered Systems and Neural Networks Statistical Mechanics Discrete Mathematics
no code implementations • 11 Sep 2007 • Andrea Montanari, Federico Ricci-Tersenghi, Guilhem Semerjian
Message passing algorithms have proved surprisingly successful in solving hard constraint satisfaction problems on sparse random graphs.