Shinil Kim, Seon Yang and Youngjoong Ko
"Classifying Mathematical Expressions Written in MathML,"
International Journal of Electronics Information and Communication Engineers (IEICE), Vol. E95-D, No. 10, October 2012.(SCIE,ISSN 1745-1337)



Sangwoo Kang, Youngjoong Ko and Jungyun Seo
"Generating Effective Responses for a Plan-based Dialogue System in Human-robot Interaction,"
Information: An International Interdisciplinary Journal, Vol. 15, No, 2, pp. 949-960, February 2012. (SCIE,ISSN 1343-4500)