Biography
◾ Ph.D. in Computer Science and Engineering, Seoul National University (SNU), Feb. 2023
◾ M.S. in Computer Science and Engineering, Seoul National University (SNU), Feb. 2018
◾ B.S. in Computer Science and Engineering, Pohang University of Science and Technology (POSTECH), Aug. 2006
Careers
◾ Assistant Professor, Dept. of Smart ICT Convergence Engineering, Seoul National University of Science and Technology (SeoulTech) (Aug. 2023 ~ current)
◾ Postdoctoral Researcher, Institute of Computer Technology, Seoul National University (Mar. 2023 ~ Jul. 2023)
◾ Senior Engineer, Samsung Research, Samsung Electronics (Jul. 2006 ~ Feb. 2018)
- For Master's degree, I received FULL financial support from the company (including tuition & salary)
Research Areas
◾ System Software
- Operating Systems
- File and Storage Systems
- Parallel and Distributed Systems
- Database Systems
Teaching
◾ Introduction to ICT Engineering
◾ Computer Programming
◾ Programming Methodology
◾ Computer Architecture
◾ System Programming
Selected Publications
◾ LPR: Learning-based Page Replacement Scheme for Scientific Applications, Hwajung Kim, Heon Y. Yeom, In Proceedings of the 23rd International Middleware Conference: Industrial Track (Middleware'22), Quebec, QC, Canada, pp. 36-42 (7 pages), Nov. 7-11. 2022
◾ Concurrent and Robust End-to-End Data Integrity Verification Scheme for Flash-Based Storage Devices, Hwajung Kim, Inhwi Hwang, Jeongeun Lee, Heon Y. Yeom, Hanul Sung, IEEE Access, vol. 10, pp. 36350-36361 (12 pages), Mar. 2022
◾ MulConn: User-Transparent I/O Subsystem for High-Performance Parallel File systems, Hwajung Kim, Jiwoo Bang, Dong Kyu Sung, Hyeonsang Eom, Heon Y. Yeom, Hanul Sung, In Proceedings of IEEE International Conference on High Performance Computing, Data, and Analytics (HiPC'21), Virtual Conference, pp. 53-62 (10 pages), Dec.17-18. 2021
◾ An Efficient Database Backup and Recovery Scheme using Write-Ahead Logging, Hwajung Kim, Heon Young Yeom, Yongseok Son, In Proceedings of IEEE 13th International Conference on Cloud Computing (CLOUD'20), Beijing, China / Virtual Conference, pp. 405-413 (9 pages), Oct. 19-23. 2020
◾ Design and Implementation of an I/O Isolation Scheme for Key-Value Store on Multiple Solid-State Drives, Hwajung Kim, Heon Young Yeom, Yongseok Son, Cluster Computing: The journal of Networks, Software Tools and Applications, vol. 23, iss.3, pp. 2301-2313 (13 pages), Sep. 2020
◾ Improving Small File I/O Performance for Massive Digital Archives, Hwajung Kim, Heon Young Yeom, In Proceedings of the IEEE 13th International Conference on e-Science (e-Science), Auckland, New Zealand, pp. 256-265 (10 pages), Oct. 2017
Journal Papers
◾ Efficient I/O Performance-Focused Scheduling in High-Performance Computing, Applied Sciences, vol.14 No.21, 2024김화정
◾ Compiler-assisted Data Placement for Heterogeneous Memory Systems, IEICE Electronics Express, vol.21 No.19, 2024김화정
◾ Improving Performance of Key-Value Stores for High-Performance Storage Devices, Applied Sciences, vol.14 No.17, 2024김화정
◾ Design and Implementation of a Slot Sharing Filter for Efficient Space Utilization, KIISE Transactions on Computing Practices, vol.28 No.7 pp.367~372, 2022김화정
◾ Concurrent and Robust End-to-End Data Integrity Verification Scheme for Flash-Based Storage Devices, IEEE ACCESS, vol.10 pp.36350~36361, 2022김화정
◾ Page Level Memory Tracing Scheme Using Software Exception Handling, KIISE Transactions on Computing Practices, vol.28 No.1 pp.16~23, 2022김화정
◾ Understanding the Performance Characteristics of Computational Storage Drives: A Case Study with SmartSSD, ELECTRONICS, vol.10 No.21, 2021김화정
◾ Validity Tracking Based Log Management for In-Memory Databases, IEEE ACCESS, vol.9 pp.111493~111504, 2021김화정
◾ Design and implementation of an I/O isolation scheme for key-value store on multiple solid-state drives, CLUSTER COMPUTING-THE JOURNAL OF NETWORKS SOFTWARE TOOLS AND APPLICATIONS, vol.23 No.3 pp.2301~2313, 2020김화정
◾ An Optimal Resource Allocation Scheme for Increasing RocksDB Parallelism on High-Performance Computing Systems, KIISE Transactions on Computing Practices, vol.26 No.3 pp.144~149, 2020김화정
◾ An Efficient File Distribution Scheme for Multiple Storage Devices based on I/O Characteristics of the Key-Value Store, KIISE Transactions on Computing Practices, vol.25 No.9 pp.453~458, 2019김화정
◾ Optimizing of metadata management in large-scale file systems, CLUSTER COMPUTING-THE JOURNAL OF NETWORKS SOFTWARE TOOLS AND APPLICATIONS, vol.21 No.4 pp.1865~1879, 2018김화정
Conference Papers
◾ 최봉석, 김화정, Service of the dashboard for predicting bearing life through CNN_LSTM deep learning model inference, 2024 The Korean Institute of Broadcast and Media Engineers Fall Conference, 서울, 2024김화정
◾ 김태현, 김화정, Optimization of Reallocation Algorithms in Dynamic Memory Allocation, 2024 The Korean Institute of Broadcast and Media Engineers Fall Conference, 서울, 2024김화정
◾ 김도영, 고병찬, 김화정, Optimizing Wafer Map Analysis by Data Preprocessing, Proceedings of Korea Computer Congress, ICC 제주, 2024김화정
◾ 고병찬, 김도영, 김화정, Improving Wafer Defect Detection Accuracy through Data Normalization, Proceedings of Korea Computer Congress, ICC 제주, 2024김화정
◾ 신희원, 염헌영, 김화정, RocksDB Compaction Optimization by leveraging small zone ZNS, Proceedings of Korea Computer Congress, 제주, 2023김화정
◾ Hwajung Kim, Heon Y. Yeom, LPR: Learning-based Page Replacement Scheme for Scientific Applications, In Proceedings of the 23rd International Middleware Conference: Industrial Track (Middleware'22), Quebec, Canada, 2022김화정
◾ Hwajung Kim, Jiwoo Bang, Dong Kyu Sung, Hyeonsang Eom, Heon Y. Yeom, Hanul Sung, MulConn: User-Transparent I/O Subsystem for High-Performance Parallel File systems, In Proceedings of IEEE International Conference on High Performance Computing, Data, and Analytics (HiPC'21), Virtual, 2021김화정
◾ 황인휘, 이정은, 김화정, 염헌영, Page-Level Memory Tracing for Efficient Memory Usage Analysis, Proceedings of Korea Computer Congress, 제주, 2021김화정
◾ 이광진, 김화정, 염헌영, Space Efficient Cuckoo filter through Slot sharing, Proceedings of Korea Computer Congress, 제주, 2021김화정
◾ Kihyeon Myung, Hwajung Kim, Yunjae Lee, Heon Y. Yeom, Competition-Based Adaptive Caching for Out-of-core Graph Processing, In Proceedings of IEEE/ACM 21st International Symposium on Cluster, Cloud and Internet Computing (CCGrid'21), Virtual, 2021김화정
◾ Hwajung Kim, Inhwi Hwang, Heon Y. Yeom, Efficient and Robust Data Integrity Verification Scheme for High-Performance Storage Devices, In Proceedings of The 36th ACM/SIGAPP Symposium on Applied Computing (SAC'21), Virtual, 2021김화정
◾ Hwajung Kim, Heon Young Yeom, Yongseok Son, An Efficient Database Backup and Recovery Scheme using Write-Ahead Logging, In Proceedings of IEEE 13th International Conference on Cloud Computing (CLOUD'20), Virtual, 2020김화정
◾ 김화정, 염헌영, An Efficient Data Integrity Verification through Pipelining, Proceedings of Korea Computer Congress, 제주, 2020김화정
◾ Heerak Lim, Hwajung Kim, Kihyeon Myung, Heon Young Yeom, Yongseok Son, IsoKV: An Isolation Scheme for Key-Value Stores by Exploiting Internal Parallelism in SSD, In Proceedings of IEEE International Conference on High Performance Computing, Data, and Analytics (HiPC'19), Hyderabad, India, 2019김화정
◾ 김화정, 김성곤, 염헌영, 손용석, Performance Evaluation of RocksDB Parallelism on High-Performance Computing system, Proceedings of Korea Computer Congress, 제주, 2019김화정
◾ 최윤서, 김화정, 염헌영, Verification of AutoML usability in Optimizing Hyperparameters, Proceedings of Korea Computer Congress, 제주, 2019김화정
◾ 명기현, 김화정, 염헌영, Designing MyRocks based on I/O Patterns for High Performance SSD, Proceedings of Korea Computer Congress, 제주, 2019김화정
◾ Hwajung Kim, Heon Young Yeom, Yongseok Son, An I/O Isolation Scheme for Key-value Store on Multiple Solid-State Drives, In Proceedings of IEEE 4th International Workshops on Foundations and Applications of Self* Systems (FAS* W), Umea, Sweden, 2019김화정
◾ 김화정, 염헌영, 손용석, Optimization of RocksDB through I/O Separation, Proceedings of Korea Software Congress, 부산, 2018김화정
◾ 김화정, 염헌영, File Structuring Method for Efficient Small File I/O Performance, Proceedings of Korea Computer Congress, 제주, 2018김화정
◾ Nae Young Song, Hwajung Kim, Hyuck Han, Heon Young Yeom, Efficient Dentry Lookup with Backward Finding Mechanism, In Proceedings of the International Conference on High Performance Computing in Asia-Pacific Region (HPCAsia), Tokyo, Japan, 2018김화정
◾ 김화정, 염헌영, Protocol and Optimization Mechanism for Transferring Many Files in a Network Environment, Proceedings of Korea Software Congress, 평창, 2017김화정
◾ Hwajung Kim, Heon Young Yeom, Improving Small File I/O Performance for Massive Digital Archives, In Proceedings of the IEEE 13th International Conference on e-Science (e-Science), Auckland, New Zealand, 2017김화정
◾ 김화정, 염헌영, IoT Log Collecting System for Understanding User Context at Home, Proceedings of Korea Computer Congress, 제주, 2016김화정
◾ Inchul Hwang, Sunhee Youm, Soohong Park, Hwajung Kim, UDP-DC2: User Data Processing Platform Based on Device-Centric Cloud, In Proceedings of the International Conference on Advanced Information Networking and Applications Workshops, Victoria, Canada, 2014김화정
Patents
◾ Cluster computing system and the operating method thereof, Korea Patent, 10-2021-0081824, Filed June 23, 2021 / United States Patent App., US17/846651, Filed June 22, 2022
◾ Electronic device, a method of compiling in an electronic device and a method of operating an electronic device, Korea Patent, KR10-2150386, Filed Aug. 26, 2020
◾ Method and Apparatus for Reproducing Content by using Metadata, Japan Patent, JP5580328B9, Filed July 18, 2014
◾ Method and Apparatus for Providing Remote UI Service, United States Patent App., US12/770226, Filed Apr. 29, 2010
◾ Method and Apparatus for Reproducing Content through Integrated Channel Management, United States Patent, US8966546, Filed Nov. 11, 2009
Projects
◾ Research on Intelligent Management Platform for Computing Resources using AI Techniques, Seoul National University of Science and Technology
◾ Research on Optimizing Database Logging, Checkpointing, and Recovery using Deep Packet Inspection, National Research Foundation of Korea
Awarded
◾ Optimization of Reallocation Algorithms in Dynamic Memory Allocation, Participation award, The Korean Institute of Broadcast and Media Engineers, 2024김화정
◾ Service of the dashboard for predicting bearing life through CNN_LSTM deep learning model inference, Participation award, The Korean Institute of Broadcast and Media Engineers, 2024김화정
◾ Excellence Award for Young Scientists based on Researches including System Software Optimization, Excellence Award for Young Scientists, Korea Federation of Women's Science & Technology Associations, 2023김화정
Miscellaneous
◾ Reviewer, Scientific Reports (2024)
◾ Reviewer, The Journal of Supercomputing (2023, 2024)
| Dept. of Smart ICT 
Faculty
