Detecting and tracing plagiarized documents by reconstruction plagiarism-evolution tree. - Chang-Keon Ryu; Hyong-Jun Kim; Seung-Hyun Ji; Gyun Woo; Hwan-Gue Cho (CIT, 2008)

A New Normalized Similarity for Discriminating Similar Documents. - Jeong-Hoon Ji; Chang-Keon Ryu; Gyun Woo; Hwan-Gue Cho (NCM (2), 2008)

A detecting and tracing algorithm for unauthorized internet-news plagiarism using spatio-temporal document evolution model. - Chang-Keon Ryu; Hyong-Jun Kim; Hwan-Gue Cho (SAC, 2009)