3.1k citations · 8.6k across the 37 of their papers we have counts for
44 papers
Reachability Does Not Imply Searchability in Expanding Networks
Antonio Scala
Routing and search respond in opposite ways to rapid network expansion. Short graph distances make a known destination easy to reach, while the neighborhood accessible within a few…
Characterizing Engagement Dynamics across Topics on Facebook
Gabriele Etta, Emanuele Sangiorgio, Niccolò Di Marco +4
Social media platforms heavily changed how users consume and digest information and, thus, how the popularity of topics evolves. In this paper, we explore the interplay between the…
The explosive value of the networks
Antonio Scala, Marco Delmastro
Networks have always played a special role for human beings in shaping social relations, forming public opinion, and driving economic equilibria. Nowadays, online networked platfor…
Human Mobility in Response to COVID-19 in France, Italy and UK
Alessandro Galeazzi, Matteo Cinelli, Giovanni Bonaccorsi +5
The policies implemented to hinder the COVID-19 outbreak represent one of the largest critical events in history. The understanding of this process is fundamental for crafting and…
Evidence of economic segregation from mobility lockdown during COVID-19 epidemic
Giovanni Bonaccorsi, Francesco Pierri, Matteo Cinelli +8
In response to the COVID-19 pandemic, National governments have applied lockdown restrictions to reduce the infection rate. We perform a massive analysis on near real-time Italian…
Time, Space and Social Interactions: Exit Mechanisms for the Covid-19 Epidemics
Antonio Scala, Andrea Flori, Alessandro Spelta +4
We develop a minimalist compartmental model to study the impact of mobility restrictions in Italy during the Covid-19 outbreak. We show that an early lockdown shifts the epidemic i…
The COVID-19 Social Media Infodemic
Matteo Cinelli, Walter Quattrociocchi, Alessandro Galeazzi +6
We address the diffusion of information about the COVID-19 with a massive data analysis on Twitter, Instagram, YouTube, Reddit and Gab. We analyze engagement and interest in the CO…
Recursive patterns in online echo chambers
Emanuele Brugnoli, Matteo Cinelli, Walter Quattrociocchi +1
Despite their playful purpose social media changed the way users access information, debate, and form their opinions. Recent studies, indeed, showed that users online tend to promo…
Selective Exposure shapes the Facebook News Diet
Matteo Cinelli, Emanuele Brugnoli, Ana Lucia Schmidt +3
The social brain hypothesis fixes to 150 the number of social relationships we are able to maintain. Similar cognitive constraints emerge in several aspects of our daily life, from…
A Dimensionality-Reduction Strategy to Compute Shortest Paths in Urban Water Networks
Carlo Giudicianni, Armando di Nardo, Gabriele Oliva +2
The efficient computation of shortest paths in complex networks is essential to face new challenges related to critical infrastructures such as a near real-time monitoring and cont…
Lexical convergence and collective identities on Facebook
Emanuele Brugnoli, Matteo Cinelli, Fabiana Zollo +2
Recent studies, targeting Facebook, showed the tendency of users to interact with information adhering to their preferred narrative and to ignore dissenting information. Primarily…
PopRank: Ranking pages' impact and users' engagement on Facebook
Andrea Zaccaria, Michela del Vicario, Walter Quattrociocchi +2
Users online tend to acquire information adhering to their system of beliefs and to ignore dissenting information. Such dynamics might affect page popularity. In this paper we intr…
Polarization Rank: A Study on European News Consumption on Facebook
Ana Lucía Schmidt, Fabiana Zollo, Antonio Scala +1
The advent of WWW changed the way we can produce and access information. Recent studies showed that users tend to select information that is consistent with their system of beliefs…
Polarization and Fake News: Early Warning of Potential Misinformation Targets
Michela Del Vicario, Walter Quattrociocchi, Antonio Scala +1
Users polarization and confirmation bias play a key role in misinformation spreading on online social media. Our aim is to use this information to determine in advance potential ta…
Polarization of the Vaccination Debate on Facebook
Ana Lucia Schmidt, Fabiana Zollo, Antonio Scala +2
Vaccine hesitancy has been recognized as a major global health threat. Having access to any type of information in social media has been suggested as a potential powerful influence…
The Anatomy of Brexit Debate on Facebook
Michela Del Vicario, Fabiana Zollo, Guido Caldarelli +2
Nowadays users get informed and shape their opinion through social media. However, the disintermediated access to contents does not guarantee quality of information. Selective expo…
Modeling confirmation bias and polarization
Michela Del Vicario, Antonio Scala, Guido Caldarelli +2
Online users tend to select claims that adhere to their system of beliefs and to ignore dissenting information. Confirmation bias, indeed, plays a pivotal role in viral phenomena.…
Echo Chambers: Emotional Contagion and Group Polarization on Facebook
Michela Del Vicario, Gianna Vivaldo, Alessandro Bessi +4
Recent findings showed that users on Facebook tend to select information that adhere to their system of beliefs and to form polarized groups -- i.e., echo chambers. Such a tendency…
Users Polarization on Facebook and Youtube
Alessandro Bessi, Fabiana Zollo, Michela Del Vicario +5
On social media algorithms for content promotion, accounting for users preferences, might limit the exposure to unsolicited contents. In this work, we study how the same contents (…
Cascades in interdependent flow networks
Antonio Scala, Pier Giorgio De Sanctis Lucentini, Guido Caldarelli +1
We investigate the abrupt breakdown behavior of coupled distribution grids under load growth. This scenario mimics the ever-increasing customer demand and the foreseen introduction…
Debunking in a World of Tribes
Fabiana Zollo, Alessandro Bessi, Michela Del Vicario +5
Recently a simple military exercise on the Internet was perceived as the beginning of a new civil war in the US. Social media aggregate people around common interests eliciting a c…
Echo chambers in the age of misinformation
Michela Del Vicario, Alessandro Bessi, Fabiana Zollo +5
The wide availability of user-provided content in online social media facilitates the aggregation of people around common interests, worldviews, and narratives. Despite the enthusi…
The equal load-sharing model of cascade failures in power grids
Antonio Scala, Pier Giorgio De Sanctis Lucentini
Electric power-systems are one of the most important critical infrastructures. In recent years, they have been exposed to extreme stress due to the increasing demand, the introduct…
Emotional Dynamics in the Age of Misinformation
Fabiana Zollo, Petra Kralj Novak, Michela Del Vicario +5
According to the World Economic Forum, the diffusion of unsubstantiated rumors on online social media is one of the main threats for our society. The disintermediated paradigm of c…