Lee, S., Han, S., Kim, B. (October 26-29, 2025). A Practical Algorithm for Multi-Vehicle Residential Waste Collection Problem. INFORMS Annual Meeting (Georgia World Congress Center and Omni Atlanta Hotel at Centennial Park, Georgia, USA).

Kim, B., Lee, S., Han, S. (June 22-25, 2025). Why Not Use Street Network Data for Visually Attractive Waste Collection Routes? EURO 2025 (University of Leeds, UK).

Lee, S., Han, S., Kim, B. (May 19-21, 2025). Single-Vehicle Residential Waste Collection Problem with Turn Penalty and Visual Attractiveness. INFORMS TSL Workshop 2025 (Seoul, Korea).

Lee, S., Kim, B. (October 20-23, 2024). Waste Collection Problem with Turn Penalty, Balanced Clustering, and Visual Attractiveness. 2024 INFORMS Annual Meeting (Seattle Convention Center, Washington, USA).

Lee, S., Kim, H., Kim, B. (October 15-18, 2023). A Nationwide Hydrogen Supply Chain Deployment Plan for a Short-term Hydrogen Supply Shortage. 2023 INFORMS Annual Meeting (Pheonix Convention Center, Arizona, USA).

Lee, S., Shin, Y., Kim, B., Choi, D. (October 16-19, 2022). A Hybridization of DNN-based Meta Model and Tabu Search for Single Intersection Traffic Signal Optimization. 2022 INFORMS Annual Meeting (Indiana Convention Center, Indiana, USA).

Han, S., Lee, S., Kim, B. (November 6-7, 2025). The Roll-on Roll-off Vehicle Routing Problem with Comprehensive Operational Constraints. 2025 Fall Conference of KIIE (KAIST, Daejeon).

Na, J., Kim, H., Kim, H., Lee, S., Kim, B. (October 24-25, 2024). Multi-Intersection Traffic Signal Coordination Model Reflecting Travel Speed. 2024 Fall Conference of KIIE (ST Center, Seoul).

Kim, J., Na, J., Kim. H., Lee, S., Kim, B. (May 2-4, 2024). Comparison of traffic signal synchronization in multi-intersections. 2024 Spring Joint of KIIE/KORMS (Yeosu Expo).

Kim, J., Kim, H., Lee, S., Kim, B., Park, H., Choi, D. (November 2-3, 2023). Comparison of Traffic Signal Optimization Algorithms at Multiple Intersections. 2023 Fall Conference of KIIE (Ulsan National Institute of Science and Technology, Ulsan).

Lee, S., Kim, B., Kim, Y., Seong, S. (June 1-4, 2022). Metaheuristic placement algorithm of 3D blocks with arbitrary shapes for shipbuilding industry. 2022 KIIE/KORMS Spring Joint Conference (Jeju, Korea).

Lee D., Ryu, H., Shin, J., Lee, S., Kim, H., Kim, B., Song, M., Yu, Y., Kim, S., Lee, H. (June 1-4, 2022). Decision support system (DSS) for optimization of hydrogen refueling stations deployment and supply chain networks. 2022 KIIE/KORMS Spring Joint Conference (Jeju, Korea).

Park, H., Lee, S., Shin, Y., Choi, D., Kim, B., Lee, J. (November 12, 2021). Intelligent Intersection Traffic Signal Control Research 2: Reinforcement Learning-based Multi Intersection Traffic Signal Optimization. 2021 Fall Conference of KIIE (Dongguk University Seoul).

Lee, S., Park, H., Shin, Y., Kim, B., Choi, D., Lee, J. (November 12, 2021). Intelligent Intersection Traffic Signal Control Research 1: Metaheuristic-based Multi Intersection Traffic Signal Optimization. 2021 Fall Conference of KIIE (Dongguk University Seoul).

Kim, H., Kim, H., Lee, D., Shin, J., Kim, B., Song, M., Lee, S., Ryu, H., Kim, S., Yu, Y., Lee, H. (October 20-22, 2021). Deployment Optimization of Off-site/On-site Hydrogen Refueling Stations. 2021 fall conference of the Korean Hydrogen & New Energy Society (Jeju, Korea).

Kim, H., Ryu, H., Eom, M., Shin, J., Lee, S., Lee, D., Kim, B., Song, M., Yu, Y., Kim, S., Lee, H. (June 2-4, 2021).  Hydrogen refueling stations deployment plan for hydrogen mobility. 2021 KIIE/KORMS Joint Conference (Jeju, Korea).

Park, H., Lee, S., Ko, H., Shin, Y., Choi, D., Kim, B., Kim, D. (November 13, 2020). Intelligent Intersection Traffic Signal Control Research 2: Reinforcement Learning based Optimization Approach. 2020 Fall Conference of KIIE (Seoul National University of Science & Technology, Seoul). 

Lee, S., Shin, Y., Eom, M., Ko, H., Park, H., Kim, B., Choi, D., Kim, D. (November 13, 2020). Intelligent Intersection Traffic Signal Control Research 1: Simulation, Metaheuristic, and Deep Neural Network based Optimization Approach. 2020 Fall Conference of KIIE (Seoul National University of Science & Technology, Seoul).