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
◾ Design and Implementation of a Slot Sharing Filter for Efficient Space Utilization, Hwajung Kim, Kwangjin Lee, Inseon Lee, Heon Y. Yeom, Jiwoong Park, KIISE Transactions on Computing Practices, 28(7) pp. 367-372 (6 pages), July 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
◾ Page Level Memory Tracing Scheme using Software Exception Handling, Inhwi Hwang, Hwajung Kim, Jeongeun Lee, Inseon Lee, Heon Y. Yeom, Jiwoong Park, KIISE Transactions on Computing Practices, 28(1) pp. 9-16 (8 pages), Jan. 2022
◾ Validity Tracking Based Log Management for In-Memory Databases, Kwangjin Lee, Hwajung Kim, Heon Y. Yeom, IEEE Access, vol. 9, pp. 111493-111504 (12 pages), Aug. 2021
◾ 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
◾ An Optimal Resource Allocation Scheme for Increasing RocksDB Parallelism on High-Performance Computing Systems, Hwajung Kim, Heon Y. Yeom, Yongseok Son, KIISE Transactions on Computing Practices, 26(3) pp. 144-149 (6 pages), Mar. 2020
◾ An Efficient File Distribution Scheme for Multiple Storage Devices based on I/O Characteristics of the Key-Value Store, Hwajung Kim, Heon Y. Yeom, Yongseok Son, KIISE Transactions on Computing Practices, 25(9) pp. 453-458 (6 pages), Sep. 2019
◾ Optimizing of Metadata Management in Large-scale File Systems, Nae Young Song, Hwajung Kim, Hyuck Han, Heon Young Yeom, Cluster Computing: The journal of Networks, Software Tools and Applications, vol. 21, iss.4, pp. 1865-1879 (15 pages), Jun. 2018
◾ 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
Conference Papers
◾ RocksDB Compaction Optimization by leveraging small zone ZNS, Heewon Shin, Heon Y. Yeom, Hwajung Kim, In Proceedings of Korea Computer Congress, pp. 13-15 (3 pages), Jun. 2023
◾ 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) (BK IF 2), Quebec, QC, Canada, pp. 36-42 (7 pages), Nov. 7-11. 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) (BK IF 1), Virtual Conference, pp. 53-62 (10 pages), Dec.17-18. 2021
◾ Space Efficient Cuckoo Filter through Slot Sharing, Kwangjin Lee, Hwajung Kim, Heon Y. Yeom, In Proceedings of Korea Computer Congress, pp. 4-6 (3 pages), Jun. 2021, Best Presentation Awards
◾ Page-Level Memory Tracing for Efficient Memory Usage Analysis, Inhwi Hwang, Jeongeun Lee, Hwajung Kim, Heon Y. Yeom, In Proceedings of Korea Computer Congress, pp. 25-27 (3 pages), Jun. 2021, Best Presentation Awards
◾ Competition-Based Adaptive Caching for Out-of-core Graph Processing, Kihyeon Myung, Hwajung Kim, Yunjae Lee, Heon Y. Yeom, In Proceedings of IEEE/ACM 21st International Symposium on Cluster, Cloud and Internet Computing (CCGrid'21) (BK IF 1), Virtual Conference, pp. 31-40 (10 pages), May 10-13. 2021
◾ Efficient and Robust Data Integrity Verification Scheme for High-Performance Storage Devices, Hwajung Kim, Inhwi Hwang, Heon Y. Yeom, In Proceedings of The 36th ACM/SIGAPP Symposium on Applied Computing (SAC'21) (BK IF 1), Virtual Conference, pp. 1199-1202 (4 pages), Mar. 22-26. 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) (BK IF 1), Beijing, China / Virtual Conference, pp. 405-413 (9 pages), Oct. 19-23. 2020
◾ An Efficient Data Integrity Verification through Pipelining, Hwajung Kim, Heon Y. Yeom, In Proceedings of Korea Computer Congress, pp. 12-14 (3 pages), Jul. 2020
◾ IsoKV: An Isolation Scheme for Key-Value Stores by Exploiting Internal Parallelism in SSD, Heerak Lim, Hwajung Kim, Kihyeon Myung, Heon Young Yeom, Yongseok Son, In Proceedings of IEEE International Conference on High Performance Computing, Data, and Analytics (HiPC'19) (BK IF 1), Hyderabad, India, pp. 247-256 (10 pages), Dec. 17-20. 2019
◾ Performance Evaluation of RocksDB Parallelism on High-Performance Computing System, Hwajung Kim, Sunggon Kim, Heon Y. Yeom, Yongseok Son, In Proceedings of Korea Computer Congress, pp. 56-58 (3 pages), Jun. 2019, Best Presentation Awards
◾ Verification of AutoML Usability in Optimizing Hyperparameters, Yoonseo Choi, Hwajung Kim, Heon Y. Yeom, In Proceedings of Korea Computer Congress, pp. 1050-1052 (3 pages), Jun. 2019
◾ Designing MyRocks based on I/O Patterns for High Performance SSD, Kihyeon Myung, Hwajung Kim, Heon Y. Yeom, In Proceedings of Korea Computer Congress, pp. 59-61 (3 pages), Jun. 2019
◾ An I/O Isolation Scheme for Key-value Store on Multiple Solid-State Drives, Hwajung Kim, Heon Young Yeom, Yongseok Son, In Proceedings of IEEE 4th International Workshops on Foundations and Applications of Self* Systems (FAS* W), Umea, Sweden, pp.170-175 (6 pages), Jun. 20, 2019
◾ Optimization of RocksDB through I/O Separation, Hwajung Kim, Heon Y. Yeom, Yongseok Son, In Proceedings of Korea Software Congress, pp. 10-12 (3 pages), Dec. 2018, Best Presentation Awards
◾ File Structuring Method for Efficient Small File I/O Performance, Hwajung Kim, Heon Y. Yeom, In Proceedings of Korea Computer Congress, pp. 25-27 (3 pages), Jun. 2018
◾ Efficient Dentry Lookup with Backward Finding Mechanism, Nae Young Song, Hwajung Kim, Hyuck Han, Heon Young Yeom, In Proceedings of the International Conference on High Performance Computing in Asia-Pacific Region (HPCAsia), Tokyo, Japan, pp.299-308 (10 pages), Jan. 2018
◾ 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
◾ Protocol and Optimization Mechanism for Transferring Many Files in a Network Environment, Hwajung Kim, Heon Y. Yeom, In Proceedings of Korea Software Congress, pp. 1530-1532 (3 pages), Dec. 2017
◾ IoT Log Collecting System for Understanding User Context at Home, Hwajung Kim, Heon Y. Yeom, In Proceedings of Korea Computer Congress, pp. 574-576 (3 pages), Jun. 2016
◾ UDP-DC2: User Data Processing Platform Based on Device-Centric Cloud, Inchul Hwang, Sunhee Youm, Soohong Park, Hwajung Kim, In Proceedings of the International Conference on Advanced Information Networking and Applications Workshops, Victoria, Canada, pp. 139-143 (5 pages), May 2014
◾ Implementation that Store Separating Metadata Created Dynamically of ISO based File Format, Juhee Seo, Hwajung Kim, In Proceedings of Autumn Annual Conference of IEIE, pp. 941-942 (2 pages), Nov. 2008
◾ 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
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
◾ 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)