| 2008 | PDPTA | Mstream: Multi-Sender Video-on-demand Streaming on Peer to Peer Overlay Network. | Yi Qi Gui, Hwang Kyu Choi |
| 2007 | PDPTA | Power-Aware Patching Scheme for Mobile Streaming Environments. | Eysuk Jung, Changyeol Choi, Hwang Kyu Choi |
| 2006 | ICCSA | Thin-Client Computing for Supporting the QoS of Streaming Media in Mobile Devices. | Joahyoung Lee, Dongmahn Seo, Yoon Kim, Changyeol Choi, Hwang Kyu Choi, Inbum Jung |
| 2006 | ICCSA | Load Distribution Strategies in Cluster-Based Transcoding Servers for Mobile Clients. | Dongmahn Seo, Joahyoung Lee, Yoon Kim, Changyeol Choi, Hwang Kyu Choi, Inbum Jung |
| 2006 | PDPTA | A P2P Broadcasting Scheme for Video on Demand Services. | Hwang Kyu Choi, Yi Qi Gui, Eysuk Jung, Chi Hoon Lee, Inbum Jung, Changyeol Choi |
| 2005 | APWEB | A Peer to Peer Proxy Patching Scheme for VOD Servers. | Chun Ja Kwon, Chi Kyu Choi, Geun Jeong Lee, Hwang Kyu Choi |
| 2005 | PDPTA | Peer-to-Peer Proxy Caching Scheme for a Large Scale VOD System in P2P Environment. | Chi Hun Lee, Chi Kyu Choi, Changyeol Choi, Hwang Kyu Choi |
| 2004 | PDPTA | An Improved Pathing Scheme for Video-On-Demand Servers. | Chun Ja Kwon, Chi Kyu Choi, Hwang Kyu Choi |
| 2003 | PDPTA | A Content-Aware Load Distribution Scheme Based on Hash Histogram Equalization in Cluster Web Servers. | Chi Kyu Choi, Chun Ja Kwon, Gi-Ho Hong, Hwang Kyu Choi |
| 2002 | CATA | An Effective Way to Guarantee the Physical Consistency of Lock Waiting Information in Main Memory Databases. | Sang-Wook Kim, Hwang Kyu Choi, Changyeol Choi, Ju-Ha Seo, Jeong-Il Park |