5 papers
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…
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…
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…
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…
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…