Optimizing a Contextual Chatbot for the POLYCC: A Competition-Based LLM Fine-Tuning Experience. Journal of STEM and Education, [S. l.], v. 6, n. 1, p. 49–52, 2026. Disponível em: https://journalstem.net/ojs/index.php/pkb/article/view/134.. Acesso em: 20 oct. 2026.