PenTiDef: Enhancing Privacy and Robustness in Decentralized Federated Intrusion Detection Systems against Poisoning Attacks. - Phan The Duy; Nghi Hoang Khoa; Nguyen Tran Anh Quan; Luong Ha Tien; Ngo Duc Hoang Son; Van-Hau Pham (CoRR, 2026)