activity
20222026
most citedCharacterizing Vaccination Movements on YouTube in the United States and Brazil

12 citations · 16 across the 6 of their papers we have counts for

collaborators

6 papers

cs.CV2026

Textual Supervision Enhances Geospatial Representations in Vision-Language Models

Marcelo Sartori Locatelli, Fernando Tonucci, Jea Kwon +5

Geospatial understanding is a critical yet underexplored dimension in the development of machine learning systems for tasks such as image geolocation and spatial reasoning. In this…

cs.SI2026

Mapping Emerging Climate Misinformation Playbooks in the Global South

Marcelo Sartori Locatelli, Wenchao Dong, Pedro Loures Alzamora +4

Climate misinformation continues to erode support for climate action, a challenge that is especially acute in the Global South, where high climate vulnerability intersects with dev…

cs.SI2025

Characterizing AI Manipulation Risks in Brazilian YouTube Climate Discourse

Wenchao Dong, Marcelo S. Locatelli, Virgilio Almeida +1

Climate change poses a global threat to public health, food security, and economic stability. Addressing it requires evidence-based policies and a nuanced understanding of how the…

cs.CL2024

Examining the Behavior of LLM Architectures Within the Framework of Standardized National Exams in Brazil

Marcelo Sartori Locatelli, Matheus Prado Miranda, Igor Joaquim da Silva Costa +8

The Exame Nacional do Ensino Médio (ENEM) is a pivotal test for Brazilian students, required for admission to a significant number of universities in Brazil. The test consists of f…

cs.SI2023★ 4 cited

Topic Shifts as a Proxy for Assessing Politicization in Social Media

Marcelo Sartori Locatelli, Pedro Calais, Matheus Prado Miranda +4

Politicization is a social phenomenon studied by political science characterized by the extent to which ideas and facts are given a political tone. A range of topics, such as clima…

cs.SI2022★ 12 cited

Characterizing Vaccination Movements on YouTube in the United States and Brazil

Marcelo Sartori Locatelli, Josemar Caetano, Wagner Meira +1

In the context of COVID-19 pandemic, social networks such as Twitter and YouTube stand out as important sources of information. YouTube, as the largest and most engaging online med…