AppTrends: A graph-based mobile app recommendation system using usage history. - Donghwan Bae; Keejun Han; Juneyoung Park; Mun Yong Yi (BigComp, 2015)

An effective approach to enhancing a focused crawler using Google. - Jae-Gil Lee 001; Donghwan Bae; Sansung Kim; Jungeun Kim; Mun Yong Yi (J. Supercomput., 2020)