| 2004 | ESA | Equivalence of Search Capability Among Mobile Guards with Various Visibilities. | Jae-Ha Lee, Sang-Min Park, Kyung-Yong Chwa |
| 2003 | SPAA | Online deadline scheduling: multiple machines and randomization. | Jae-Ha Lee |
| 2003 | WAOA | Online Deadline Scheduling: Team Adversary and Restart. | Jae-Ha Lee |
| 2001 | ICALP | Visibility-Based Pursuit-Evasion in a Polygonal Region by a Searcher. | Sang-Min Park, Jae-Ha Lee, Kyung-Yong Chwa |
| 2001 | ISAAC | Optimization Algorithms for Sweeping a Polygonal Region with Mobile Guards. | Jae-Ha Lee, Sang-Min Park, Kyung-Yong Chwa |
| 2000 | ESA | Approximation of Curvature-Constrained Shortest Paths through a Sequence of Points. | Jae-Ha Lee, Otfried Cheong, Woo-Cheol Kwon, Sung Yong Shin, Kyung-Yong Chwa |
| 2000 | ISAAC | Characterization of Rooms Searchable by Two Guards. | Sang-Min Park, Kyung-Yong Chwa, Jae-Ha Lee |
| 1999 | ISAAC | Online Scheduling of Parallel Communications with Individual Deadlines. | Jae-Ha Lee, Kyung-Yong Chwa |
| 1999 | ISAAC | Carrying Umbrellas: An Online Relocation Problem on Graphs. | Jae-Ha Lee, Chong-Dae Park, Kyung-Yong Chwa |
| 1996 | ISAAC | Directed Hamiltonian Packing in | Jae-Ha Lee, Chan-Su Shin, Kyung-Yong Chwa |