International Publications

Yeojin Jang, Harin Jang, and Sangkeum Lee, A Quantum-Resistant and AI-Resilient Real-Time Keystroke Protection Framework with Blockchain-Backed Decentralized Identity," IEEE Access, 2026.

Sangkeum Lee, Beomdo Park, Junseong Park, Hyeonseok Jang, Hoon Jeong, and Taewook Heo, "Measurement-Informed Safe Reinforcement Learning for Quantum Battery Charging via Harmonic-Syndrome Diagnostics and BMS Constraints," IEEE Transactions on Quantum Engineering, 2026.

Hisham M. Soliman, Sangkeum Lee, Farag A. El Sheikhi, Yeojin Jang and Ehab H. E. Bayoumi, "Decentralized Stabilization of Smart Grids against Deception Cyber-attack via Active Disturbance Rejection Control," IEEE Access, 2026.

Sangkeum Lee, "Frequency Hopping Synchronization for Satellite Communication System Using Reinforcement Learning," Applied Soft Computing, 2026.

Woohyeon Kwon, Minsung Jung, Junseong Park, Sangkeum Lee, "FFT-Guided Multi-Window USAD with DTW–Isolation Forest for Reliable Anomaly Detection in Industrial Power Time-Series," Energies, 2025.

Sookeun Song, Minseo Jo, Bong Kuk Lee, Sangkeum Lee, Hyunbean Yi, "Camera-based Sow Posture Analysis and Prediction of Artificial Insemination Timing," Agriculture, 2025.

Minsung Jung, Hyeonseok Jang, Woohyeon Kwon, Jiyun Seo, Suna Park, Beomdo Park, Junseong Park, Donggeon Yu, Sangkeum Lee, "A Comparative Study of Customized Algorithms for Anomaly Detection in Industry-Specific Power Data," Energies, 2025.

Jianxin Xiong, Zhiyuan Zhou, Vyacheslav V Dubrovskiy, Sangkeum Lee, "A new digital watermarking model using honey encryption and reversible cellular automata," Scientific Reports, 2025.

Sarvar Hussain Nengroo, Dongsoo Har, Hoon Jeong, Taewook Heo, Sangkeum Lee, "Continuous-Variable Quantum Reinforcement Learning for HVAC Control and Power Management in Residential Building," Energy and AI, 2025.

Mahmoud Abdel-Salam, Saleh Ali Alomari, Jun Yang, Sangkeum Lee, Kashif Saleem, Aseel Smerat, “Harnessing Dynamic Turbulent Dynamics in Parrot Optimization Algorithm for Complex High-Dimensional Engineering Problems,” Computer Methods in Applied Mechanics and Engineering, 2025.

Qiang Sun, Lin Yang, Cheng Guo, Sangkeum Lee, "Machine Learning-based Optimisation Algorithms for Sentiment Analysis: An Analysis of the State-of-the-Art and Upcoming Challenges,” Journal of Experimental & Theoretical Artificial Intelligence, 2025.

Haoyu Yang, Entesar Gemeay, Abdullah Alqahtani, Abed Alanazi, Shtwai Alsubai, Sangkeum Lee, "Facial Expression Recognition by Multi-Scale Local Binary Patterns (MLBP) and Convolutional Neural Network (CNN) Features," Expert Systems, 2025.

Sangkeum Lee, Mohammad H. Almomani, Saleh Ali Alomari, Kashif Saleem, Aseel Smerat, Vaclav Snasel, Amir H. Gandomi, Laith Abualigah, "A Novel Deep Learning Framework with Artificial Protozoa Optimization-based Adaptive Environmental Response for Wind Power Prediction," Scientific Reports, 2025.

Mahmoud Abdel-Salam, Saleh Ali Alomari, Mohammad H. Almomani, Gang Hu, Sangkeum Lee, Kashif Saleem, Aseel Smerat, Laith Abualigah, "Quadruple Strategy-Driven Hiking Optimization Algorithm for Low and High-Dimensional  Feature Selection and Real-World Skin Cancer Classification," Knowledge-Based Systems, 2025.

Zhijing Liu, Tong Su, Michail A. Zakharov, Guoliang Wei, Sangkeum Lee,  "Software Defect Prediction based on Residual/Shuffle Network Optimized by Upgraded Fish Migration Optimization Algorithm," Scientific Reports, 2025.

Hisham M. Soliman, Ehab H.E. Bayoumi, Sangkeum Lee, "Ellipsoidal Design of Robust Secure Frequency Control in Smart Cities under Denial-of-Service Cyber Attack," Smart Cities, 2025.

Wang Long, Zhao Qixin, Michail A Zakharov, Sangkeum Lee, "Optimizing fault prediction in software based on MnasNet/LSTM optimized by an improved lotus flower algorithm," Egyptian Informatics Journal, 2025.

Hanen Issaoui, Asma Eladel, Ahmed Zouinkhi, Mourad Zaied, Lazhar Khriji, Sarvar Hussain Nengroo, Sangkeum Lee, "Defending CNN Against FGSM Attacks Using Beta-Based Personalized Activation Functions and Adversarial Training," IEEE Access, 2024.

Mimouna Abdullah Alkhonaini, Entesar Gemeay, Firas Muhammad Zeki Mahmood, Mohamed Ayari, Farhan A Alenizi, Sangkeum Lee, "A new encryption algorithm for image data based on two-way chaotic maps and iterative cellular automata," Scientific Reports, 2024.

Jianhong Ye, Zhiyong Zhao, Ehsan Ghafourian, AmirReza Tajally, Hamzah Ali Alkhazaleh, Sangkeum Lee, "Optimizing the Topology of Convolutional Neural Network (CNN) and Artificial Neural Network (ANN) for Brain Tumor diagnosis (BTD) through MRIs," Heliyon, 2024.

Hojun Jin, Sarvar Nengroo, Juhee Jin, Dongsoo Har, Sangkeum Lee, “P2P Power Trading Based on Reinforcement Learning for Nanogrid Clusters,” Expert Systems with Applications, 2024.

Sarvar Hussain Nengroo*, Sangkeum Lee*, Mostafa F. Shaaban, Dongsoo Har, "Incorporating Energy Storage System into Grid Connected PV System with the Application of Wireless Sensor Network," Journal of Energy Storage, 2024.

Mimouna Abdullah Alkhonaini, Farhan A Alenizi, Yahia Hasan Jazyah, Sangkeum Lee, “A two-phase spatiotemporal chaos-based protocol for data integrity in IoT,” Scientific Reports, 2024.

Ting Xu, Mohammad Hosein Sabzalian, Ahmad Hammoud, Hamed Tahami, Ali Gholami, Sangkeum Lee, “An innovative machine learning based on feed-forward artificial neural network and equilibrium optimization for predicting solar irradiance,” Scientific Reports, 2024.

Wanqi Lai, Meixia Kuang, Xiaorou Wang, Parviz Ghafariasl, Mohammad Hosein Sabzalian, Sangkeum Lee, “Skin cancer diagnosis (SCD) using Artificial Neural Network (ANN) and Improved Gray Wolf Optimization (IGWO),” Scientific Reports, 2023.

Sui Zhihan, Ali Mohammadiounotikandi, Saeed Ghareh Khanlooei, Sepideh Monjezi, Mekhmonov Sultonali Umaralievich, Ali Ehsani, Sangkeum Lee, “A new conceptual model to investigate the role of hospital's capabilities on sustainable learning,” Heliyon, 2023.

Wajih El Hadj Youssef, Ali Abdelli, Fehmi Kharroubi, Fethi Dridi, Lazhar Khriji, Razzaqul Ahshan, Mohsen Machhout, Sarvar Hussain Nengroo, Sangkeum Lee, “A Secure Chaos-based Lightweight Cryptosystem for the Internet of Things,” IEEE Access, 2023.

Hisham M. Soliman, Ehab H. E. Bayoumi, Farag A. El-Sheikhi, Razzaqul Ahshan, Sarvar Hussain Nengroo, Sangkeum Lee, “Invariant set-based DC microgrid decentralized actuator fault-tolerant control,” IEEE Access, 2023.

Md. Sayed Hasan Rifat, Md. Ashaduzzaman Niloy, Mutasim Fuad Rizvi, Ashik Ahmed, Razzaqul Ahshan, Sarvar Hussain Nengroo, Sangkeum Lee, “Application of Binary Slime Mould Optimization Algorithm for solving Unit Commitment Problem,” IEEE Access, 2023.

Sangkeum Lee, Sarvar Hussain Nengroo, Hojun Jin, Yoonmee Doh, Chungho Lee, Taewook Heo, and Dongsoo Har, "Anomaly Detection of Smart Metering System for Power Management with Battery Storage System/Electric Vehicle,” ETRI Journal, 2023.

Hojun Jin, Sangkeum Lee, Sarvar Hussain Nengroo, Dongsoo Har, “Peer-to-peer energy trading between nanogrids with utilization of energy storage system considering battery degradation cost,” Energy and Buildings, 2023.

Shayan Bahadoran Baghbadorani, Seyed abdolhassan johari, Zahra Fakhri, Esmaeil Khaksar Shahmirzadi, Shav-katov Navruzbek Shavkatovich, Sangkeum Lee, “A New Version of African Vulture Optimizer for Apparel Supply Chain Management Based on Reorder Decision-Making,” Sustainability, 2022.

Sarvar Hussain Nengroo, Hojun Jin, and Sangkeum Lee, "Management of Distributed Renewable Energy Resources with the Help of a Wireless Sensor Network,” Applied Sciences, 2022.

Hojun Jin, Sangkeum Lee, Sarvar Hussain Nengroo, Dongsoo Har, "Development of Charging/Discharging Scheduling Algorithm for Economical and Energy-Efficient Operation of Multi-EV Charging Station," Applied Sciences, 2022.

Sangkeum Lee, Hojun Jin, Luiz Felipe Vecchietti, Junhee Hong, Ki-Bum Park, Pham Ngoc Son, and Dongsoo Har, "Cooperative decentralized peer-to-peer electricity trading of nanogrid clusters based on predictions of load demand and PV power generation using a gated recurrent unit model," IET Renewable Power Generation, 2021.

Taeyoung Kim, Luiz Felipe Vecchietti, Kyujin Choi, Sangkeum Lee, and Dongsoo Har, "Machine Learning for Advanced Wireless Sensor Networks: A Review," IEEE Sensors Journal, 2020.

Sangkeum Lee, Hojun Jin, Luiz Felipe Vecchietti, Junhee Hong, and Dongsoo Har. “Short-term Predictive Power Management of PV-powered Nanogrids,” IEEE Access, 2020.

Sangkeum Lee, Luiz Felipe Vecchietti, Hojun Jin, Junhee Hong, and Dongsoo Har. “Power Management by LSTM Network for Nanogrids,” IEEE Access, 2020.

Sangkeum Lee, Suil Kim, Minah Seo, Dongsoo Har. "Synchronization of Frequency Hopping by LSTM Network for Satellite Communication System," IEEE Communications Letters, 2019.

Minah Seo, Luiz Felipe Vecchietti, Sangkeum Lee, and Dongsoo Har. "Rewards Prediction-Based Credit Assignment for Reinforcement Learning with Sparse Binary Rewards," IEEE Access, 2019.

Sangkeum Lee, Junho Lee, Heedae Jung, Jintae Cho, Junhee Hong, Sangmin Lee, and Dongsoo Har. "Optimal Power Management for Nanogrids Based on Technical Information of Electric Appliances," Energy and Buildings, 2019.

Sangkeum Lee, Hong-Yeon Cho, and Dongsoo Har. "Operation Optimization with Jointly Controlled Modules Powered by Hybrid Energy Source: A Case Study of Desalination," Renewable and Sustainable Energy Reviews, 2018.

Celso Moraes, Sunghee Myung, Sangkeum Lee, and Dongsoo Har. "Distributed Sensor Nodes Charged by Mobile Charger with Directional Antenna and by Energy Trading for Balancing," Sensors, 2017.

Sangkeum Lee, Junhee Hong, and Dongsoo Har. "Jointly Optimized Control for Reverse Osmosis Desalination Process with Different Types of Energy Resource," Energy, 2016.

Sangkeum Lee, Sunghee Myung, Junhee Hong, and Dongsoo Har. "Reverse Osmosis Desalination Process Optimized for Maximum Permeate Production with Renewable Energy," Desalination, 2016.

Ryu, Hyun-Gyu, Sang-Keum Lee, and Dongsoo Har. "Data transmission with reduced delay for distributed acoustic sensors," International Journal of Distributed Sensor Networks, 2015.

Beomdo Park, Hyeonseok Jang, Junseong Park, Minu Baek, Gihun Gil, Minsung Jung, Woohyeon Kwon, Harin Jang, Yeojin Jang, Hoon Jeong, Taewook Heo and Sangkeum Lee, "Multi-Stage Reinforcement Learning for Robust Charging of Quantum Batteries (Student Abstract)," Proceedings of the AAAI Conference on Artificial Intelligence, 2026.(Poster)

Sangkeum Lee, Sarvar Nengroo, Hojun Jin, Yoonmee Doh, Chungho Lee, Taewook Heo, Dongsoo Har, “Power Management in Smart Residential Building with Deep Learning Model for Occupancy Detection by Usage Pattern of Electric Appliances,” 2023 5th International Electronics Communication Conference (IECC 2023), 2023. (Talk)

Seongkwon Cho, Chungho Lee, Sangkeum Lee, Jin-Hong Kim, Yoonmee  Doh, Cheol-Soo Park, “Integrated control of radiant floor heating system in residential buildings,” Building Simulation 2023, 2023. (Talk)

Sangkeum Lee, Sarvar Hussain Nengroo, Yeonji Jung, Seonhyeog Kim, Soonhyun Kwon, Youngmee Shin, Yoonmee Doh, Taewook Heo, Dongsoo Har, “Factory Energy Management by Steam Energy Cluster Modeling in Paper-Making,” 11th International Conference on Smart Grid 2023 (icsmartgrid 2023), 2023(Talk)

Sangkeum Lee, Sarvar Hussain Nengroo, Hojun Jin, Yoonmee Doh, Chungho Lee, Taewook Heo, and Dongsoo Har. “Smart Metering System Capable of Anomaly Detection by Bi-Directional LSTM Autoencoder,” IEEE International Conference on Consumer Electronics (ICCE) 2022, 2022. (Talk)

Sarvar Hussain Nengroo, Sangkeum Lee, Hojun Jin, Dongsoo Har. " Optimal Scheduling of Energy Storage for Power System with Capability of Sensing Short-Term Future PV Power Production," 2021 International Conference on Power and Energy Systems (IECES), 2021. (Talk)

Sangkeum Lee, Hojun Jin, Sarvar Hussain Nengroo, Dongsoo Har. " P2P Power Trading between Nanogrid Clusters Exploiting Electric Vehicles and Renewable Energy Sources," 2021 International Conference on Computational Science and Computational Intelligence (CSCI), 2021. (Talk)

Hojun Jin, Sarvar Hussain Nengroo, Sangkeum Lee, Dongsoo Har. " Power Management of Microgrid Integrated with Electric Vehicles in Residential Parking Station," 10th International Conference on Renewable Energy Research and Applications (ICRERA), 2021. (Talk)

Sangkeum Lee, Dongsoo Har. “Optimal Energy Management in Nanogrids,” SENSORCOMM 2017: The Eleventh International Conference on Sensor Technologies and Applications, 2017. (Talk)