| 2007 | MMM | Educational Information System Using Two Phase Feature Extract in u-Learning Environment. | Keun-Wang Lee, Kwang-Hyoung Lee, Jong-Cheon Park |
| 2007 | MMM | An Improvement of the Processing Delay for the G.723.1 Vocoder. | Kwang-Hyoung Lee, So Yeon Min, Keun-Wang Lee, Jeong Gyu Jee |
| 2006 | ICCSA | A Study on the Pitch Extraction Detection by Linear Approximation of Sub-band. | Keun-Wang Lee, Kwang-Hyoung Lee, So Yeon Min |
| 2005 | ICCSA | A Video Retrieval System for Electrical Safety Education Based on a Mobile Agent. | Hyeon-Seob Cho, Keun-Wang Lee |
| 2005 | ICCSA | A Multimedia Database System Using Dependence Weight Values for a Mobile Environment. | Kwang-Hyoung Lee, HeeSook Kim, Keun-Wang Lee |
| 2005 | ICCSA | Design and Implementation of Mobile-Learning System for Environment Education. | Keun-Wang Lee, Jong-Hee Lee |
| 2004 | ICCS | Mobile-Based Synchronization Model for Presentation of Multimedia Objects. | Keun-Wang Lee, Hyeon-Seob Cho, Kwang Hyung Lee |
| 2004 | KES | A Multimedia Database System Using Mobile Indexing Agent in Wireless Network. | Jong-Hee Lee, Kwang-Hyoung Lee, Moon-Seog Jun, Keun-Wang Lee |
| 2004 | NPC | The Design of a DRM System Using PKI and a Licensing Agent. | Keun-Wang Lee, Jae-Pyo Park, Kwang-Hyoung Lee, Jong-Hee Lee, HeeSook Kim |
| 2003 | ICCS | Petri-Net Model of Multimedia Synchronization in Mobile Environment. | Keun-Wang Lee, Jong-Hee Lee, Hae-Seok Oh |