An Efficient Recovery System from Intrusion in the Internet. - Hee Yong Youn; Sung Chune Choi; Chang-Won Park; Hyung Su Lee (PDCS, 2003)

Symmetric Tree Replication Protocol for Efficient Distributed Storage System. - Sung Chune Choi; Hee Yong Youn; Joong-Sup Choi (International Conference on Computational Science, 2003)

A Replication Protocol with Composite Topology for High Adaptability. - Sung Chune Choi; Hee Yong Youn; Jong Ku Park; Joong-Sup Choi (ICCSA (1), 2003)

Task Mapping Algorithm for Heterogeneous Computing System Allowing High Throughput and Load Balancing. - Sung Chune Choi; Hee Yong Youn (International Conference on Computational Science (3), 2005)

Distributed Lock Manager for Distributed File System in Shared-Disk Environment. - Sung Chune Choi; Minseuk Choi; Chunkyeong Lee; Hee Yong Youn (CIT, 2010)

Dynamic hybrid replication effectively combining tree and grid topology. - Sung Chune Choi; Hee Yong Youn (J. Supercomput., 2012)