@inproceedings{piorino-etal-2026-dialogos,
    title = "Di{\'a}logos T{\'o}xicos: Gatilhos e Padr{\~o}es de Intera{\c{c}}{\~a}o no {R}eddit Brasileiro",
    author = "Piorino, Giovana  and
      Machado, Marco Ant{\^o}nio de Alc{\^a}ntara  and
      Lima, Luiz Henrique Quevedo  and
      Pagano, Adriana  and
      Silva, Ana Paula Couto da",
    editor = "Souza, Marlo  and
      de-Dios-Flores, Iria  and
      Santos, Diana  and
      Freitas, Larissa  and
      Souza, Jackson Wilke da Cruz  and
      Ribeiro, Eug{\'e}nio",
    booktitle = "Proceedings of the 17th International Conference on Computational Processing of {P}ortuguese ({PROPOR} 2026) - Vol. 1",
    month = apr,
    year = "2026",
    address = "Salvador, Brazil",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-dnd/2026.propor-1.57/",
    pages = "581--590",
    ISBN = "979-8-89176-387-6",
    abstract = "In this paper we analyze the structural and linguistic dynamics of online toxicity in Reddit discussion trees, focusing on how trigger comments escalate conflicts in Brazilian Portuguese. Using a fine-tuned BERTAbaporu model, we show that toxic discussions are deeper, more engaging, and initially semantically cohesive, but degrade over time, while non-toxic interactions emphasize social bonding. Our findings contribute to a better understanding of toxicity escalation and support early detection of discursive conflicts."
}