About

I work on database systems. My Ph.D. research built a performant and efficient database replay system for fast DBMSs, centered on generating dependency graphs quickly enough to replay production workloads faithfully. I have also worked on query compilation for continuous subgraph matching and on incremental graph analytics. I completed my Ph.D. at POSTECH under Prof. Wook-Shin Han and now continue there as a postdoctoral researcher.

Publications

• DoppelGanger++ in Action: A Database Replay System with Fast Dependency Graph GenerationWonseok Lee, Jaehyun Ha, Wook-Shin Han, Changgyoo Park, Myunggon Park, Juhyeng Han
  VLDB 2024 (Demo)
• In-depth Analysis of Continuous Subgraph Matching in a Common Delta Query Compilation FrameworkYukyoung Lee, Kyoungmin Kim, Wonseok Lee, Wook-Shin Han
  SIGMOD 2024
• DoppelGanger++: Towards Fast Dependency Graph Generation for Database ReplayWonseok Lee, Jaehyun Ha, Wook-Shin Han, Changgyoo Park, Myunggon Park, Juhyeng Han, Juchang Lee
  SIGMOD 2024
• iTurboGraph: Scaling and Automating Incremental Graph AnalyticsSeongyun Ko, Taesung Lee, Kijae Hong, Wonseok Lee, In Seo, Jiwon Seo, Wook-Shin Han
  SIGMOD 2021

Experience

• Postdoctoral Researcher, POSTECH

  2026 – Present

Education

• Ph.D. in IT Engineering, POSTECHThesis: A Performant and Efficient Database Replay System for Fast DBMSs. Advisor: Wook-Shin Han.

  2018 – 2026
• B.S. in IT Engineering, POSTECH

  2014 – 2018