PUBLICATION
International Journals
[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, Mar. 2022
[2021]
- Understanding the Performance Characteristics of Computational Storage Drives: A Case Study with SmartSSD
- Hwajung Kim, Heon Y. Yeom, Hanul Sung
- Electronics
- vol. 10, iss. 21, pp. 2617-2629, Oct. 2021
- Validity Tracking Based Log Management for In-Memory Databases
- Kwangjin Lee, Hwajung Kim, Heon Y. Yeom
- IEEE Access
- vol. 9, pp. 111493-111504, Aug. 2021
- Understanding the Performance Characteristics of Computational Storage Drives: A Case Study with SmartSSD
[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, Sep. 2020
[2018]
- 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, Jun. 2018
International Conferences
[2022]
- 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, Nov. 7-11. 2022
- LPR: Learning-based Page Replacement Scheme for Scientific Applications
[2021]
- 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, Dec.17-18. 2021
- 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)
- Virtual Conference, pp. 31-40, May 10-13. 2021
- MulConn: User-Transparent I/O Subsystem for High-Performance Parallel File systems
- 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)
- Virtual Conference, pp. 1199-1202, Mar. 22-26. 2021
[2020]
- 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, Oct. 19-23. 2020
- An Efficient Database Backup and Recovery Scheme using Write-Ahead Logging
[2019]
- 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)
- Hyderabad, India, pp. 247-256, Dec. 17-20. 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, Jun. 20, 2019
[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, Jan. 2018
- Efficient Dentry Lookup with Backward Finding Mechanism
[2017]
- 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, Oct. 2017
- Improving Small File I/O Performance for Massive Digital Archives
[2014]
- 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, May 2014
- UDP-DC2: User Data Processing Platform Based on Device-Centric Cloud
Domestic Journals (Republic of Korea, in Korean)
[2022]
- 효율적 공간 활용을 위한 슬롯 공유 필터의 설계 및 구현
- (English title) Design and Implementation of a Slot Sharing Filter for Efficient Space Utilization
- 김화정, 이광진, 이인선, 염헌영, 박지웅
- 정보과학회 컴퓨팅의 실제 논문지 (KIISE Transactions on Computing Practices)
- 28(7) pp. 367-372, July 2022
- 소프트웨어 예외 처리를 이용한 페이지 단위 메모리 추적 방법
- (English title) Page Level Memory Tracing Scheme using Software Exception Handling
- 황인휘, 김화정, 이정은, 이인선, 염헌영, 박지웅
- 정보과학회 컴퓨팅의 실제 논문지 (KIISE Transactions on Computing Practices)
- 28(1) pp. 9-16, Jan. 2022
- 효율적 공간 활용을 위한 슬롯 공유 필터의 설계 및 구현
[2020]
- 고성능 컴퓨팅 시스템에서의 RocksDB 병렬성 증대를 위한 최적의 자원 할당 기법
- (English title) An Optimal Resource Allocation Scheme for Increasing RocksDB Parallelism on High-Performance Computing Systems
- 김화정, 염헌영, 손용석
- 정보과학회 컴퓨팅의 실제 논문지 (KIISE Transactions on Computing Practices)
- 26(3) pp. 144-149, Mar. 2022
- 고성능 컴퓨팅 시스템에서의 RocksDB 병렬성 증대를 위한 최적의 자원 할당 기법
[2019]
- 키밸류 스토어의 파일 I/O 특성을 고려한 다중 저장장치로의 효율적 파일 배치 기법
- (English title) An Efficient File Distribution Scheme for Multiple Storage Devices based on I/O Characteristics of the Key-Value Store
- 김화정, 염헌영, 손용석
- 정보과학회 컴퓨팅의 실제 논문지 (KIISE Transactions on Computing Practices)
- 25(9) pp. 453-458, Sep. 2022
- 키밸류 스토어의 파일 I/O 특성을 고려한 다중 저장장치로의 효율적 파일 배치 기법
Domestic Conferences (Republic of Korea, in Korean)
[2023]
- Small zone ZNS를 활용한 RocksDB 컴팩션 최적화
- (English title) RocksDB Compaction Optimization by leveraging small zone ZNS
- 신희원, 염헌영, 김화정*
- 한국정보과학회 학술발표논문집 (In Proceedings of Korea Computer Congress), pp. 13-15, Jun. 2023 (*Corresponding Author)
- Small zone ZNS를 활용한 RocksDB 컴팩션 최적화
[2021]
- 버켓 간 슬롯 공유를 통한 쿠쿠 필터(Cuckoo Filter) 공간 효율화
- (English title) Space Efficient Cuckoo filter through Slot sharing
- 이광진, 김화정, 염헌영
- 한국정보과학회 학술발표논문집 (In Proceedings of Korea Computer Congress), pp. 4-6, Jun. 2021
- Best Presentation Awards
- 효율적인 메모리 사용 분석을 위한 페이지 단위 메모리 트레이싱
- (English title) Page-Level Memory Tracing for Efficient Memory Usage Analysis
- 황인휘, 이정은, 김화정, 염헌영
- 한국정보과학회 학술발표논문집 (In Proceedings of Korea Computer Congress), pp. 25-27, Jun. 2021
- Best Presentation Awards
- 버켓 간 슬롯 공유를 통한 쿠쿠 필터(Cuckoo Filter) 공간 효율화
[2020]
- 파이프라이닝을 통한 효율적 데이터 무결성 검증
- (English title) An Efficient Data Integrity Verification through Pipelining
- 김화정, 염헌영
- 한국정보과학회 학술발표논문집 (In Proceedings of Korea Computer Congress), pp. 12-14, Jul. 2020
- 파이프라이닝을 통한 효율적 데이터 무결성 검증
[2019]
- 고성능 컴퓨팅 시스템에서의 RocksDB의 병렬성에 따른 성능 평가
- (English title) Performance Evaluation of RocksDB Parallelism on High-Performance Computing system
- 김화정, 김성곤, 염헌영, 손용석
- 한국정보과학회 학술발표논문집 (In Proceedings of Korea Computer Congress), pp. 56-58, Jun. 2019
- Best Presentation Awards
- AutoML의 Hyperparameter 최적화 유용성 검증
- (English title) Verification of AutoML usability in Optimizing Hyperparameters
- 최윤서, 김화정, 염헌영
- 한국정보과학회 학술발표논문집 (In Proceedings of Korea Computer Congress), pp. 1050-1052, Jun. 2019
- 고성능 SSD를 위한 MyRocks I/O 패턴 분석 및 최적화 기법 설계
- (English title) Designing MyRocks based on I/O Patterns for High Performance SSD
- 명기현, 김화정, 염헌영
- 한국정보과학회 학술발표논문집 (In Proceedings of Korea Computer Congress), pp. 59-61, Jun. 2019
- 고성능 컴퓨팅 시스템에서의 RocksDB의 병렬성에 따른 성능 평가
[2018]
- 읽기와 쓰기 연산 분리를 통한 RocksDB 최적화
- (English title) Optimization of RocksDB through I/O Separation
- 김화정, 염헌영, 손용석
- 한국정보과학회 학술발표논문집 (In Proceedings of Korea Software Congress), pp. 10-12, Dec. 2018
- Best Presentation Awards
- 소형 파일 처리 성능 향상을 위한 파일 저장 기법
- (English title) File Structuring Method for Efficient Small File I/O Performance
- 김화정, 염헌영
- 한국정보과학회 학술발표논문집 (In Proceedings of Korea Computer Congress), pp. 25-27, Jun. 2018
- 읽기와 쓰기 연산 분리를 통한 RocksDB 최적화
[2017]
- 네트워크 환경에서 대규모 파일의 효율적 전송을 위한 프로토콜 및 최적화 기법
- (English title) Protocol and Optimization Mechanism for Transferring Many Files in a Network Environment
- 김화정, 염헌영
- 한국정보과학회 학술발표논문집 (In Proceedings of Korea Software Congress), pp. 1530-1532, Dec. 2017
- 네트워크 환경에서 대규모 파일의 효율적 전송을 위한 프로토콜 및 최적화 기법
[2016]
- Home 환경에서 사용자의 상황 파악을 위한 IoT 로그 수집 시스템
- (English title) IoT Log Collecting System for Understanding User Context at Home
- 김화정, 염헌영
- 한국정보과학회 학술발표논문집 (In Proceedings of Korea Computer Congress), pp. 574-576, Jun. 2016
- Home 환경에서 사용자의 상황 파악을 위한 IoT 로그 수집 시스템
[2008]
- ISO 기반의 파일에서 동적으로 생성되는 메타데이터를 파일과 분리하여 저장하는 알고리즘 구현
- (English title) Implementation that Store Separating Metadata Created Dynamically of ISO based File Format
- 서주희, 김화정
- 대한전자공학회 학술대회 (In Proceedings of Autumn Annual Conference of IEIE), pp. 941-942, Nov. 2008
- ISO 기반의 파일에서 동적으로 생성되는 메타데이터를 파일과 분리하여 저장하는 알고리즘 구현
Patents
Cluster computing system and the operating method thereof
Heon Young Yeom, Hwajung Kim
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
Heon Young Yeom, Hwajung Kim
Korea Patent, KR10-2150386, Filed Aug. 26, 2020
Method and Apparatus for Reproducing Content by using Metadata
Sunhee Youm, Juhee Seo, SeungJi Yang, Hwajung Kim, Woosung Shim
Japan Patent, JP5580328B9, Filed July 18, 2014
Method and Apparatus for Providing Remote UI Service
Hwajung Kim, Ho Jin, Youngchul Sohn, Soomin Shin, Minjeong Moon
United States Patent App., US12/770226, Filed Apr. 29, 2010
Method and Apparatus for Reproducing Content through Integrated Channel Management
Juhee Seo, Sunhee Youm, SeungJi Yang, Hwajung Kim, Woosung Shim, Kyungsun Cho, IkHwan Cho, YoungHo Moon, Mihwa Park
United States Patent, US8966546, Filed Nov. 11, 2009