Design of RBAC-based secure KAgent framework for home network applications. - Kang-hak Han; Junghwan Choi; Sanghyun Ryu; Hyun-Su Jang; Young Ik Eom (MoMM, 2009)

User Adaptive Recommendation Model by Using User Clustering based on Decision Tree. - Sanghyun Ryu; Kang-hak Han; Hyun-Su Jang; Young Ik Eom (CIT, 2010)

General Context-Aware Role-Based Access Control System. - Kang-hak Han; Sanghyun Ryu; Jee-hong Kim; Young Ik Eom (Security and Management, 2010)