About Me

I am a first-year CS Ph.D student at Northeastern University, advised by Prof. Ji-Yong Shin in the Systems Research Group.

Previously, I was a researcher at the Korea Electronics Technology Institute (KETI), where I work on large-scale data processing in distributed storage systems. I received my master’s degree in computer science from Sookmyung Women’s University, advised by Prof. Dongchul Park.

I am broadly interested in reliable computer systems;
Applying formal methods to reason about the correctness of distributed systems.

Education

• Northeastern University, Boston, MA, United States
  • Ph.D. in Computer Science
    • Sep. 2026 - Present
• Sookmyung Women’s University, Seoul, Republic of Korea
  • Master of Engineering in Computer Science
    • Thesis: Redesigning Hadoop YARN Architecture for Heterogeneous Single Board Computer Clusters
    • Mar. 2022 - Feb. 2024
  • Bachelor of Engineering in Software Convergence
    • Mar. 2017 - Feb. 2022

Journal Publications

[J3] AIR-YARN: Automatic Internal Parallelism Reconfiguration on Heterogeneous Low-Power Hadoop Clusters
S. Lim and D. Park
Future Generation Computer Systems, 2026 (under revision)
Preprint / DOI
[J2] Improving Hadoop MapReduce performance on heterogeneous single board computer clusters
S. Lim and D. Park
Future Generation Computer Systems, 2024
Paper / DOI
[J1] Efficient Stack Distance Approximation Based on Workload Characteristics
S. Lim and D. Park
IEEE Access, 2022
Paper / DOI

Conference Presentations

[C2] Accelerating I/O Performance for AI Frameworks on DAOS
S. Lim, T. Yoo, J. Son, and D. Kim
ICONI, Okinawa, Japan, 2025
Paper / Poster
[C1] Toward Heterogeneity-Aware Striping in Lustre
S. Lim, J. Son, and D. Kim
ICTC, Jeju Island, Republic of Korea, 2025
Paper / Poster