Anaïs Ollagnier Elena Cabrio Serena Villata Sara Tonelli BiRDy: Bullying Role Detection in Multi-Party Chats. 16464-16466 2023 AAAI https://doi.org/10.1609/aaai.v37i13.27080 conf/aaai/2023 db/conf/aaai/aaai2023.html#OllagnierCVT23