I received my Ph.D. in Computer Science from Chungbuk National University in 2006. I joined the Department of Computer Science and Engineering at Konkuk University in 2007, where I am currently serving as an associate professor. My research interests include the Internet of Things (IoT), ICT convergence, machine learning, and big data analysis. 

• Chi JH, Lee BJ (2026). Association of hand grip strength with rheumatoid arthritis and osteoarthritis in the Korean population: A large-scale cross-sectional study. PLOS ONE 21(3): e0343150.

• Park, S., & Chi, J. (2025). V-MHESA: A Verifiable Masking and Homomorphic Encryption-Combined Secure Aggregation Strategy for Privacy-Preserving Federated Learning. Mathematics, 13(22), 3687. 

• Chi, J. H., & Lee, B. J. (2025). Association between Osteoarthritis and the Triglyceride–Glucose Index in the Korean Population: A Large-Scale Cross-Sectional Study. Journal of Clinical Medicine, 14(20), 7226. 

• Park, S., Lee, J., Harada, K., & Chi, J. (2025). Masking and Homomorphic Encryption-Combined Secure Aggregation for Privacy-Preserving Federated Learning. Electronics (2079-9292), 14(1). 

• Chi, J.H., & Lee, B.J. (2024). Association of relative hand grip strength with myocardial infarction and angina pectoris in the Korean population: a large-scale cross-sectional study. BMC Public Health 24, 941. 

• Lee, B.J., & Chi, J.H. (2023). Association between anemia and grip strength indices combined with anthropometry in the Korean population.  Scientific Reports, 13, 18517. 

• Chi, J. H., & Lee, B. J. (2023). Association between arthritis and hand grip strength indices combined with anthropometry in an older Korean population. Plos one, 18(8), e0291046 . 

• Hwang, J., Park, S., & Chi, J. (2023). Improving Multi-Class Motor Imagery Classification Using Overlapping Sliding Window and Deep Learning Model. Electronics, 12(5), 1186. 

• Chi, J. H., & Lee, B. J. (2022). Risk factors for hypertension and diabetes comorbidity in a Korean population: A cross-sectional study. Plos one, 17(1), e0262757. 

• Chi, J. H., & Lee, B. J. (2022). Association of myocardial infarction and angina pectoris with obesity and biochemical indices in the South Korean population. Scientific Reports, 12(1), 13769. 

• Hwang, J., & Chi, J. (2022). Association of Metabolic Syndrome with the Number of Breastfed Children in Postmenopausal Korean Women. Combinatorial Chemistry & High Throughput Screening, 25(4), 752-762. 

• Yeom, S., Choi, S., Chi, J., & Park, S. (2021). Blockchain-Based Employment Contract System Architecture Allowing Encrypted Keyword Searches. Electronics, 10(9), 1086. 

• Chi, J., Lee, J., Kim, N., Choi, J., & Park, S. (2020). Secure and reliable blockchain-based eBook transaction system for self-published eBook trading. PloS one, 15(2), e0228418.

• Chi, J. H., Shin, M. S., & Lee, B. J. (2019). Identification of hypertriglyceridemia based on bone density, body fat mass, and anthropometry in a Korean population. BMC Cardiovascular Disorders, 19(1), 1-12. 

• Chi, J. H., Shin, M. S., & Lee, B. J. (2019). Association of type 2 diabetes with anthropometrics, bone mineral density, and body composition in a large-scale screening study of Korean adults. Plos one, 14(7), e0220077. 

• Hwang, J. H., Chi, J., & Park, S. (2019). BHUI: A New Bitwise Operation-based High Utility Itemset Mining. 전기학회논문지, 68(11), 1417-1424. 

• Park, S., Han, H., Kim, B. S., Noh, J. H., Chi, J., & Choi, M. J. (2018). Real-time traffic risk detection model using smart mobile device. Sensors, 18(11), 3686. 

• Hwang, J. H., Kim, H., & Chi, J. H. (2018). Hierarchical Level Based Frequent Pattern Mining. INTERNATIONAL JOURNAL OF GRID AND DISTRIBUTED COMPUTING, 11(9), 1-12. 

• Whang, J., Park, S., & Chi, J. (2016). Influence maximized MCL based RSU deployment. International Journal of Future Generation Communication and Networking, 9(11), 229-238. 

• Hwang, J., & Chi, J. (2016). Discovering Frequent Service Patterns with Dynamic Weight. International Information Institute (Tokyo). Information, 19(11A), 5169. 

• Chi, J., Do, S., & Park, S. (2016, January). Traffic flow-based roadside unit allocation strategy for VANET. In 2016 International Conference on Big Data and Smart Computing (BigComp) (pp. 245-250).

• Chi, J., Park, H., Hwang, T., & Park, S. (2014). An Extended Intersection-Priority based RSU Allocation for VANET. International Information Institute (Tokyo). Information, 17(4), 1419. 

• Chi, J., Park, H., Hwang, T., & Park, S. (2014, July). The architecture for vehicular black-box image communication in VANET. In 2014 Sixth International Conference on Ubiquitous and Future Networks (ICUFN) (pp. 483-488).

• Chi, J., Jo, Y., Park, H., Hwang, T., & Park, S. (2013). An effective rsu allocation strategy for maximizing vehicular network connectivity. International Journal of Control and Automation, 6(4), 259-270.

• Chi, J., Jo, Y., Park, H., & Park, S. (2013, July). Intersection-priority based optimal RSU allocation for VANET. In 2013 Fifth international conference on ubiquitous and future networks (ICUFN) (pp. 350-355).