Publication

International Journal Paper

1. Doyoung Lee, "LLM-Assisted Initial Population Generation for Multi-Objective Joint Service Placement and Traffic Routing in 6G Networks," Mathematics, vol. 14, no. 17, pp. 3088, Aug. 2026. #SCIE

2. Doyoung Lee, Taeyeon Kim, "Metaheuristic Optimization of End-to-End Service Routing in Multi-Domain Network Architectures," ETRI Journal, vol. 48, no. 3, pp. 450-463, Jun. 2026. #SCIE

3. Doyoung Lee, Taeyeon Kim, "Embedding-Assisted Genetic Algorithm for Routing Optimization in 6G Networks," Mathematics, vol. 13, no. 21, pp. 3536, Nov. 2025. #SCIE

4. Doyoung Lee, Seyeon Jeong, Kyungchan Ko, Jae-Hyoung Yoo, James Won-Ki Hong, "Deep Q-network-based auto scaling for service in a multi-access edge computing environment", International Journal of Network Management (IJNM), vol. 31, no. 6, e2176, Nov. 2021. #SCIE

5. Heegon Kim, Suhyun Park, Stanislav Lange, Doyoung Lee,  Dongnyeong Heo, Heeyoul Choi, Jae-Hyoung Yoo, James Won-Ki Hong, "Graph Neural Network-based Virtual Network Function Deployment Optimization", International Journal of Network Management (IJNM), vol. 31, no. 6, e2164, Nov. 2021. #SCIE

6. Stanislav Lange, Nguyen Van Tu, Seyeon Jeong, Doyoung Lee, Heegon Kim,  Jibum Hong, Jae-Hyoung Yoo, James Won-Ki Hong, "A Network Intelligence Architecture for Efficient VNF Lifecycle Management", IEEE Transactions on Network and Service Management (TNSM), vol. 18, no. 2, pp. 1476–1490, Jun. 2021. #SCIE

International Conference Paper

1. Doyoung Lee, Taeyeon Kim, "Toward Semantic Translation in Network Slicing: LLM-Based Network Slice Configuration.", 2025 IEEE Globecom Workshops (GC Wkshps): Workshop on AI native Communications Systems-towards Integrated Intelligent and Highly Efficient Communications Systems (GC Wkshps 2025-AI NCS IIHECS). Taipei, Taiwan, Dec. 12, 2025.

2. Doyoung Lee, Taeyeon Kim, "Global Collaborative Research on 6GARROW: 6G AI-Native Integrated RAN-Core Networks.", 2025 International Conference on Information and Communication Technology Convergence (ICTC 2025). Jeju, Korea, Oct. 14-17, 2025.

3. Doyoung Lee,Taeheum Na, Taeyeon Kim, "Metaheuristic Optimization for Joint Service Placement and Routing in 6G Networks.", 2025 International Conference on Mobile, Military, Maritime IT Convergence (ICMIC 2025), Cebu, Philippines, Aug. 27-30, 2025. 

4. Doyoung Lee, Seungjae Shin, Changsik Lee, Taeheum Na, Taeyeon Kim, "A Hybrid Auto-scaling Method for Energy Efficiency of Network Services.", 2024 International Conference on Information and Communication Technology Convergence (ICTC 2024). Jeju, Korea, Oct. 16-18, 2024.

5. DongNyeong Heo, Doyoung Lee, Heegon Kim, Suhyun Park, Heeyoul Choi, "Reinforcement Learning of Graph Neural Networks for Service Function Chaining in Computer Network Management", 23rd Asia-Pacific Network Operations and Management Symposium (APNOMS 2022), Takamatsu, Japan, Sep. 28-30, 2022. 

6. Petra Gabriela, Doyoung Lee, Nguyen Van Tu, James Won-Ki Hong, "Machine Learning-Based Auto-Scaler for Video Conferencing Systems", 7th IEEE Conference on Network Softwarization (Netsoft 2021), Tokyo, Japan, June 28-July 2 2021.

7. Doyoung Lee, Jae-Hyoung Yoo, James Won-Ki Hong, "Deep Q-Networks based Auto-scaling for Service Function Chaining", 16th International Conference on Network and Service Management (CNSM 2020), Izmir, Turkey, Nov. 2-6, 2020.

8. Doyoung Lee, Jae-Hyoung Yoo, James Won-Ki Hong, "Q-learning Based Service Function Chaining Using VNF Resource-aware Reward Model", 21st Asia-Pacific Network Operations and Management Symposium (APNOMS 2020), Daegu, Korea, Sep. 23-25, 2020.

9. Heegon Kim, Stanislav Lange, Suhyun Park, Doyoung Lee, Dongnyeong Heo, Heeyoul Choi, Jae-Hyoung Yoo, James Won-Ki Hong, "Graph Neural Network-based Virtual Network Function Management", 21st Asia-Pacific Network Operations and Management Symposium (APNOMS 2020), Daegu, Korea, Sep. 23-25, 2020 (Student Paper Award).

10. Heegon Kim, Seyeon Jeong, Doyoung Lee, Heeyoul Choi, Jae-Hyoung Yoo, James Won-Ki Hong, "A Deep Learning Approach to VNF Resource Prediction using Correlation between VNFs", 2nd International Workshop on Emerging Trends in Softwarized Networks (ETSN 2019), Paris, France, June 28, 2019.

11. Heegon Kim, Doyoung Lee, Seyeon Jeong, Heeyoul Choi, Jae-Hyoung Yoo, James Won-Ki Hong, "Machine Learning-based Method for Virtual Network Function Resource Demand Prediction", 5th IEEE Conference on Network Softwarization (Netsoft 2019), Paris, France, June 24-28, 2019.

12. Seyeon Jeong, Doyoung Lee, James Won-Ki Hong, "OpenFlow-based Virtual TAP using Open vSwitch and DPDK", 16th IEEE/IFIP Network Operations and Management Symposium (NOMS 2018), Taipei, Taiwan, April 23-27, 2018.

13. Doyoung Lee, Yoonseon Han, James Won-Ki Hong, "Design of Virtual Gateway in Virtual Software Defined Networks", 4th International Workshop on Management of SDN and NFV Systems (ManSDN/NFV 2017), Tokyo, Japan, Nov. 26, 2017.

14. Doyoung Lee, Seyeon Jeong, James Won-Ki Hong, "OpenAPI-based Message Router for Mashup Service Development", 19th Asia-Pacific Network Operations and Management Symposium (APNOMS 2017), Seoul, Korea, Sep. 27-29, 2017. (Best Paper Award)

15. Seyeon Jeong, Doyoung Lee, Jonghwan Hyun, Jian Li, James Won-Ki Hong, "Application-aware Traffic Engineering in Software-Defined Network", 19th Asia-Pacific Network Operations and Management Symposium (APNOMS 2017), Seoul, Korea, Sep. 27-29, 2017. 

16. Dongho Son, Doyoung Lee, Taeyeol Jeong, James Won-Ki Hong, "A Hybrid Live Streaming Model for a Reliable Service", 19th Asia-Pacific Network Operations and Management Symposium (APNOMS 2017), Seoul, Korea, Sep. 27-29, 2017.

17. Doyoung Lee, Seyeon Jeong, Taeyeol Jeong, Jae-Hyoung Yoo, James Won-Ki Hong, "ICBMS SM: A Smart Mediator for Mashup Service Development", 18th Asia-Pacific Network Operations and Management Symposium (APNOMS 2016), Kanazawa, Japan, Oct. 5-7, 2016.

18. Seyeon Jeong, Doyoung Lee, Junemuk Choi, Jian Li, James Won-Ki Hong, "Application-aware Traffic Management for OpenFlow Networks", 18th Asia-Pacific Network Operations and Management Symposium (APNOMS 2016), Kanazawa, Japan, Oct. 5-7, 2016.

International Patent (Registered)

1. James Won-Ki Hong, Heegon Kim, Doyoung Lee, Jae-Hyoung Yoo, "METHOD OF PREDICTING DEMAND OF VIRTUAL NETWORK FUNCTION RESOURCES TO WHICH MACHINE LEARNING IS APPLIED", Patent No.: US 11,341,372 B2 (16/691,505), 2022.05.24 (2019.11.21) (Appplicant: POSTECH)