A set-oriented genetic algorithm and the knapsack problem. - Sebon Ku; Bogju Lee (CEC, 2001)

TWIMC: An Anonymous Recipient E-mail System. - Sebon Ku; Bogju Lee; Dongman Lee (IEA/AIE, 2002)

Extracting User Profiles from E-mails Using the Set-Oriented Classifier. - Sebon Ku; Bogju Lee; Eunyong Ha (PRICAI, 2002)