8 citations · 10 across the 8 of their papers we have counts for
9 papers
Don't You Know, Pump it Up! Investigating Cryptocurrency Manipulation in Telegram-Driven Activity
Filipe Moura, Giordano Paoletti, Carlos H. G Ferreira +1
Telegram plays a pivotal role in cryptocurrency communication and has been repeatedly associated with coordinated schemes, such as pump-and-dump manipulation. However, existing stu…
The Brazilian Vaccination Debate on YouTube: Topics, Perspectives, and Engagement Dynamics
Matheus S. Azevedo, Geovana S. de Oliveira, Andrea Failla +4
Vaccination debates are central to online public health communication, as COVID-19 intensified disputes over scientific authority, institutional trust, and political identity. Yet…
Structure, Topics, and Diffusion Effects of Bluesky Starter Packs
Andrea Failla, Vander Freitas, Giulio Rossetti +1
User discovery is a central challenge in online social platforms, particularly during onboarding. Bluesky, a decentralized microblogging platform built on the AT Protocol, introduc…
Who Shapes Brazil's Vaccine Debate? Semi-Supervised Modeling of Stance and Polarization in YouTube's Media Ecosystem
Geovana S. de Oliveira, Ana P. C. Silva, Fabricio Murai +1
Vaccination remains a cornerstone of global public health, yet the COVID-19 pandemic exposed how online misinformation, political polarization, and declining institutional trust ca…
A High-Performance Evolutionary Multiobjective Community Detection Algorithm
Guilherme O. Santos, Lucas S. Vieira, Giulio Rossetti +2
Community detection in complex networks is fundamental across social, biological, and technological domains. While traditional single-objective methods like Louvain and Leiden are…
Understanding mobility in networks: A node embedding approach
Matheus F. C. Barros, Carlos H. G. Ferreira, Bruno Pereira dos Santos +3
Motivated by the growing number of mobile devices capable of connecting and exchanging messages, we propose a methodology aiming to model and analyze node mobility in networks. We…
A Hierarchical Network-Oriented Analysis of User Participation in Misinformation Spread on WhatsApp
Gabriel Peres Nobre, Carlos H. G. Ferreira, Jussara M. Almeida
WhatsApp emerged as a major communication platform in many countries in the recent years. Despite offering only one-to-one and small group conversations, WhatsApp has been shown to…
On the Dynamics of Political Discussions on Instagram: A Network Perspective
Carlos H. G. Ferreira, Fabricio Murai, Ana P. C. Silva +5
Instagram has been increasingly used as a source of information especially among the youth. As a result, political figures now leverage the platform to spread opinions and politica…
Analyzing Ideological Communities in Congressional Voting Networks
Carlos H. G. Ferreira, Breno de Souza Matos, Jusssara M. Almeida
We here study the behavior of political party members aiming at identifying how ideological communities are created and evolve over time in diverse (fragmented and non-fragmented)…