no code implementations • 8 Mar 2024 • Jacopo Lenti, Fabrizio Silvestri, Gianmarco De Francisci Morales
We validate our method on a bounded confidence model with agent roles (leaders and followers).
1 code implementation • 31 Oct 2023 • Gabriele D'Acunto, Francesco Bonchi, Gianmarco De Francisci Morales, Giovanni Petri
The bulk of the research effort on brain connectivity revolves around statistical associations among brain regions, which do not directly relate to the causal mechanisms governing brain dynamics.
no code implementations • 31 Aug 2022 • Gabriele D'Acunto, Gianmarco De Francisci Morales, Paolo Bajardi, Francesco Bonchi
Our model allows sampling an MN-DAG according to user-specified priors on the time-dependence and multiscale properties of the causal graph.
no code implementations • 10 May 2022 • Corrado Monti, Marco Pangallo, Gianmarco De Francisci Morales, Francesco Bonchi
In this paper, we propose a protocol to learn the latent micro-variables of an ABM from data.
no code implementations • 9 Nov 2021 • Gabriele D'Acunto, Paolo Bajardi, Francesco Bonchi, Gianmarco De Francisci Morales
They link the evolution of the causal structure of equity risk factors with market volatility and a worsening macroeconomic environment, and show that, in times of financial crisis, exposure to different factors boils down to exposure to the market risk factor.
1 code implementation • 2 Jun 2020 • Corrado Monti, Gianmarco De Francisci Morales, Francesco Bonchi
In this work we propose an inference mechanism for fitting a generative, agent-like model of opinion dynamics to real-world social traces.
1 code implementation • CONLL 2019 • Atanas Atanasov, Gianmarco De Francisci Morales, Preslav Nakov
In particular, we show how to classify trolls according to their political role ---left, news feed, right--- by using features extracted from social media, i. e., Twitter, in two scenarios: (i) in a traditional supervised learning scenario, where labels for trolls are available, and (ii) in a distant supervision scenario, where labels for trolls are not available, and we rely on more-commonly-available labels for news outlets mentioned by the trolls.
1 code implementation • 8 Feb 2019 • Ghadeer Abuoda, Gianmarco De Francisci Morales, Ashraf Aboulnaga
A common approach is to use features based on the common neighbors of an unconnected pair of nodes to predict whether the pair will form a link in the future.
1 code implementation • 5 Jan 2018 • Kiran Garimella, Gianmarco De Francisci Morales, Aristides Gionis, Michael Mathioudakis
By comparing the two, we find that Twitter users are, to a large degree, exposed to political opinions that agree with their own.
Social and Information Networks
no code implementations • 28 Jul 2016 • Nicolas Kourtellis, Gianmarco De Francisci Morales, Albert Bifet, Arinto Murdopo
IoT Big Data requires new machine learning methods able to scale to large size of data arriving at high speed.
2 code implementations • 26 Oct 2015 • Muhammad Anis Uddin Nasir, Gianmarco De Francisci Morales, David Garcia-Soriano, Nicolas Kourtellis, Marco Serafini
We study the problem of load balancing in distributed stream processing engines, which is exacerbated in the presence of skew.
Distributed, Parallel, and Cluster Computing
1 code implementation • 18 Jul 2015 • Kiran Garimella, Gianmarco De Francisci Morales, Aristides Gionis, Michael Mathioudakis
Unlike previous work, rather than study controversy in a single hand-picked topic and use domain specific knowledge, we take a general approach to study topics in any domain.
Social and Information Networks
no code implementations • 18 Jul 2013 • Carlos Castillo, Gianmarco De Francisci Morales, Marcelo Mendoza, Nasir Khan
We perform an automatic analysis of television news programs, based on the closed captions that accompany them.