CEB: Class Quality Evaluator for BlueJ. - Yu-Kyung Kang; Suk-hyung Hwang; Hae Sool Yang; Jung-Bae Lee; Hee-Chul Choi; Hyun-Wook Wee; Dong-Soon Kim (ICCSA (3), 2005)

D-FOAF: Distributed Identity Management with Access Rights Delegation. - Sebastian Ryszard Kruk; Slawomir Grzonkowski; Adam Gzella; Tomasz Woroniecki; Hee-Chul Choi (ASWC, 2006)

A Semantic Annotation Tool to Extract Instances from Korean Web Documents. - Hai-Tao Zheng 002; Bo-Yeong Kang; Sang-Ok Koo; Hee-Chul Choi; Kwang-Sub Kim; Hong-Gee Kim (SAAW@ISWC, 2006)