Search Results for author: Francesco Farina

Found 11 papers, 1 papers with code

Venture Capital Portfolio Construction and the Main Factors Impacting the Optimal Strategy

no code implementations20 Mar 2023 Francesco Farina, Mike Arpaia, Harpal Khing, Jonas Vetterle

The optimal portfolio size for a venture capital (VC) fund is a topic often debated, but there is no consensus on the best strategy.

Intrinsic uncertainties and where to find them

no code implementations6 Jul 2021 Francesco Farina, Lawrence Phillips, Nicola J Richmond

We introduce a framework for uncertainty estimation that both describes and extends many existing methods.

Benchmarking

Data efficiency in graph networks through equivariance

no code implementations25 Jun 2021 Francesco Farina, Emma Slade

We introduce a novel architecture for graph networks which is equivariant to any transformation in the coordinate embeddings that preserves the distance between neighbouring nodes.

Inductive Bias

Symmetry-driven graph neural networks

no code implementations28 May 2021 Francesco Farina, Emma Slade

Exploiting symmetries and invariance in data is a powerful, yet not fully exploited, way to achieve better generalisation with more efficiency.

Inductive Bias

Beyond permutation equivariance in graph networks

no code implementations25 Mar 2021 Emma Slade, Francesco Farina

In this draft paper, we introduce a novel architecture for graph networks which is equivariant to the Euclidean group in $n$-dimensions.

Inductive Bias

GTAdam: Gradient Tracking with Adaptive Momentum for Distributed Online Optimization

no code implementations3 Sep 2020 Guido Carnevale, Francesco Farina, Ivano Notarnicola, Giuseppe Notarstefano

This paper deals with a network of computing agents aiming to solve an online optimization problem in a distributed fashion, i. e., by means of local computation and communication, without any central coordinator.

Distributed Optimization General Classification +1

Distributed Personalized Gradient Tracking with Convex Parametric Models

no code implementations10 Aug 2020 Ivano Notarnicola, Andrea Simonetto, Francesco Farina, Giuseppe Notarstefano

We present a distributed optimization algorithm for solving online personalized optimization problems over a network of computing and communicating nodes, each of which linked to a specific user.

Distributed Optimization

Collective Learning

no code implementations5 Dec 2019 Francesco Farina

In this paper, we introduce the concept of collective learning (CL) which exploits the notion of collective intelligence in the field of distributed semi-supervised learning.

Image Classification

Asynchronous Distributed Learning from Constraints

no code implementations13 Nov 2019 Francesco Farina, Stefano Melacci, Andrea Garulli, Antonio Giannitrapani

In this paper, the extension of the framework of Learning from Constraints (LfC) to a distributed setting where multiple parties, connected over the network, contribute to the learning process is studied.

Document Classification Privacy Preserving

Distributed Submodular Minimization via Block-Wise Updates and Communications

no code implementations31 May 2019 Andrea Testa, Francesco Farina, Giuseppe Notarstefano

In this \emph{distributed} set-up, in order to preserve their own privacy, agents communicate with neighbors but do not share their local cost functions.

Image Segmentation Semantic Segmentation

Asynchronous Distributed Method of Multipliers for Constrained Nonconvex Optimization

1 code implementation17 Mar 2018 Francesco Farina, Andrea Garulli, Antonio Giannitrapani, Giuseppe Notarstefano

We show that this distributed algorithm is equivalent to a block coordinate descent algorithm for the minimization of the Augmented Lagrangian followed by an update of the whole multiplier vector.

Optimization and Control

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