SPS Lab @ SSU We Optimize!

Publications

Works in Progress

  1. A Robust Optimization Approach for Multi-Pack Battery Scheduling under Efficiency and State-of-Charge Uncertainty
  2. Optimization of Electric Vehicle Charging Schedules with Mobile Charging Robots
  3. Optimization of Electric Vehicle Battery Swapping Station Operations with State-of-Health Considerations

International Publications

  1. Closed-Loop Supply Chain Model with Third-Party Logistics–Based Return Management System
    S. Yoon, Y. Lee*, Y. Shin* · Transportation Research Part E: Logistics and Transportation Review 215, 105077, Nov. 2026
    on-line link
  2. Two-stage Robust Optimization Approach for Integrated Supply Chain Planning with Hybrid-dark Stores
    Y. Shin, Y. Lee* · Omega 140, 103479, Apr. 2026
    on-line link
  3. An Approximate Dynamic Programming Approach to Wafer-Lot Scheduling for Parallel Multi-Chamber Equipment in Semiconductor Fabrication Lines
    S. Hong, Y. Lee*, K. Lee* · International Journal of Production Research 64(8), 2900-2925, Apr. 2026
    on-line link
  4. Self-Adaptive Prompt Engineering for Cost-Efficient Language Models: Switching between Chain-of-Thought and Direct Answer
    Y. Kim, Y. Lee, C. Kang · ICIC Express Letters 20(2), 199-207, Feb. 2026
    on-line link
  5. Structure-Preserving Process Case Embeddings via Directed Graph Convolutional Networks
    H. Park, Y. Lee, C. Kang · ICIC Express Letters, Part B: Applications 17(2), 183-189, Feb. 2026
    on-line link
  6. A Branch-and-Price Algorithm for the Parallel-line Lot-sizing and Scheduling Problem in Flat-panel Display Manufacturing Process
    S. Oh, J. Jeong, Y. Lee*, K. Lee* · Omega 138, 103386, Jan. 2026
    on-line link
  7. A Robust Optimization Approach for the Multi-Period Strip Cutting Problem with Multi-Cutter Slitting Machines
    S. Hong, J. Park, Y. Lee* · Applied Sciences 15(19), 10387, 2025
    on-line link
  8. A Robust Optimization Approach for E-bus Charging and Discharging Scheduling with Vehicle-to-Grid Integration
    M. Kang, B. Lee, Y. Lee* · Mathematics 13(9), 1380, May. 2025
    on-line link
  9. Capacity Estimation for Semiconductor Wafer Fabrication Facilities via an Optimization Model based on Flexible Lead Times
    S. Hong, Y. Lee*, K. Lee* · IEEE Transactions on Semiconductor Manufacturing 38(2), 292-310, May. 2025
    on-line link
  10. Valid Inequalities and Extended Formulations for Lot-sizing and Scheduling Problem with Sequence-dependent Setups
    Y. Lee, K. Lee* · European Journal of Operational Research 310(1), 201-216, Oct. 2023
    on-line link
  11. New Integer Optimization Models and an Approximate Dynamic Programming Algorithm for the Lot-sizing and Scheduling Problem with Sequence-dependent Setups
    Y. Lee, K. Lee* · European Journal of Operational Research 302(1), 230-243, Oct. 2022
    on-line link
  12. Lot-sizing and Scheduling in Flat-Panel Display Manufacturing Process
    Y. Lee, K. Lee* · Omega 93, 102036, Jun. 2020
    on-line link

Domestic Publications

  1. Optimization of Electric Bus Charging and Discharging Schedules with Vehicle-to-Grid Technology
    M. Kang, D. Min, B. Lee, Y. Lee* · The Transactions of the Korean Institute of Electrical Engineers 74(5), 761-774, May. 2025

International Conferences

  1. An Optimization Model and Approximate Dynamic Programming Algorithms for a Wafer-Lot Scheduling Problem in Parallel Multi-Chamber Equipment · S. Hong, Y. Lee, K. Lee · EURO 2025, Leeds, UK, Jun. 2025
  2. Valid Inequalities and Extended Formulations for Single-period Relaxation of Lot-sizing and Scheduling Problem · Y. Lee, K. Lee · EURO 2022, Espoo, Finland, Jul. 2022
  3. An Optimization Model based on Flexible Lead Times for Semiconductor Wafer Fabrication · S. Hong, Y. Lee, K. Lee · EURO 2022, Espoo, Finland, Jul. 2022
  4. New Integer Optimization Models and Approximate Dynamic Programming Algorithm for the Lot-sizing and Scheduling Problem with Sequence-dependent Setups · Y. Lee, K. Lee · IFORS 2021, Seoul (virtual), Aug. 2021
  5. On the Discrete Lot-sizing and Scheduling Problem with Sequence-dependent Setup · Y. Lee, K. Lee · ISMP 2018, Bordeaux, France, Jul. 2018

Domestic Conferences

  1. State-of-Health를 고려한 전기차 배터리 교환 스테이션 운영 최적화 · 손성은, 조정운, 최민영, 이혁진, 이연수 · 대한산업공학회 춘계학술대회 (KIIE 2025), Jeju, Jun. 2025
  2. 이동형 충전로봇 기반 전기차 충전 스케줄링 최적화 · 최민영, 이혁진, 손성은, 조정운, 이연수 · 대한산업공학회 춘계학술대회 (KIIE 2025), Jeju, Jun. 2025
  3. V2G 기술을 활용한 전기차 군집 기반 사업자의 운영 스케줄 최적화 · 강민규, 민동욱, 이보성, 이연수 · 대한산업공학회 춘계학술대회 (KIIE 2024), Yeosu, May. 2024
  4. An Optimization Model based on Flexible Lead Times for Semiconductor Wafer Fabrication · S. Hong, Y. Lee, K. Lee · 대한산업공학회 춘계학술대회 (KIIE 2022), Jeju, Jun. 2022
  5. A Decomposition Approach for the Parallel Line Lot-sizing and Scheduling Problem with Sequence-dependent Setup and Item Family · J. Jeong, Y. Lee, K. Lee · 대한산업공학회 추계학술대회 (KIIE 2021), Seoul, Nov. 2021
  6. New Integer Optimization Models and Approximate Dynamic Programming Algorithm for the Lot-sizing and Scheduling Problem with Sequence-dependent Setups · Y. Lee, K. Lee · 대한산업공학회 추계학술대회 (KIIE 2020), Seoul, Nov. 2020
  7. An Extended Formulation Approach for the Lot-sizing and Scheduling Problem with Sequence-dependent Setups and Production Run Limit · Y. Lee, K. Lee · 대한산업공학회 추계학술대회 (KIIE 2018), Seoul, Nov. 2018
  8. On the Discrete Lot-sizing and Scheduling Problem with Sequence-dependent Setup · Y. Lee, K. Lee · 한국경영과학회 추계학술대회 (KORMS 2017), Seoul, Nov. 2017