3 papers
cs.SI2026
WhatsApp Vaccine Discourse (WhaVax): An Expert-Annotated Dataset and Benchmark for Health Misinformation Detection
Jônatas H. dos Santos, Julio C. S. Reis, Philipe Melo +9
We introduce WhaVax, a new expert-annotated dataset of vaccine-related WhatsApp messages collected from large Brazilian public groups spanning multiple pandemic years. The dataset…
cs.CY2024
Finding Fake News Websites in the Wild
Leandro Araujo, Joao M. M. Couto, Luiz Felipe Nery +4
The battle against the spread of misinformation on the Internet is a daunting task faced by modern society. Fake news content is primarily distributed through digital platforms, wi…
cs.SI2024
A Sticker is Worth a Thousand Words: Characterizing the Use of Stickers in WhatsApp Political Groups in Brazil
Philipe Melo, João M. M. Couto, Daniel Kansaon +3
With the increasing use of smartphones, instant messaging platforms turned into important communication tools. According to WhatsApp, more than 100 billion messages are sent each d…