Graduate School

Introduction Faculty Curriculum

Department of Smart ICT Convergence Engineering

홈 영문-일반대학원 Department Department of Smart ICT Convergence Engineering Faculty

Name	Hwajung Kim
MAJOR	System Software
TEL	02-970-6878
E-mail	hwajung.kim@seoultech.ac.kr

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

Journal Papers

◾ AS2: Adaptive sorting algorithm selection for heterogeneous workloads and systems, FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE, vol.172 No.172 pp.107860~107860, 2025김화정

◾ Improving database performance by leveraging network-assisted logging, FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE, vol.169 No.169 pp.107785~107785, 2025김화정

◾ LWMalloc: A Lightweight Dynamic Memory Allocator for Resource-Constrained Environments, IEEE INTERNET OF THINGS JOURNAL, vol.12 No.12 pp.19532~19548, 2025김화정

◾ Learning-based page replacement scheme for efficient I/O processing, SCIENTIFIC REPORTS, vol.15 No.1 pp.4721~4721, 2025김화정

◾ Near-Data Processing 연구 동향, Communications of the Korean Institute of Information Scientists and Engineers (Communications of KIISE), 2024김화정

◾ 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

◾ 최민호, 김화정, A Hybrid Line Tracking Method for Small-Scale Autonomous Vehicles: Immediate Sensor Start and Camera-Based Transition, Proceedings of Korea Computer Congress, ICC 제주, 2025김화정

◾ 김태현, 윤승서, 김화정, Performance Evaluation of File Systems for Smart Home Data Types, Proceedings of Korea Computer Congress, ICC 제주, 2025김화정

◾ 김태현, 김화정, Optimizing Dynamic Memory Management Algorithms for Resource-Constrained Environments, ICEIC 2025 Proceeding, Osaka International House, Japan, 2025김화정

◾ 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

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, 2025)