Publications

SIGMOD 2027

CADENZA: Compiling Natural-Language Intent into Task-Specific Operator DAGs for Semantic Query Processing

Jaehyun Ha, Yongjoo Park, and Wook-Shin Han

First Author

VLDB 2026 Demo

CADENZA in Action: Breaking the Monolith with Intent-Dependent Plan Spaces for Semantic Queries

Jaehyun Ha, Yongjoo Park, and Wook-Shin Han

First Author

VLDB 2026

TurboLynx: Schemaless Graph Engine Strikes Back for General-Purpose Analytics

Taesung Lee, Jaehyun Ha, Byungchul Tak, and Wook-Shin Han

2nd Author

VLDB 2026 Demo

TurboLynx in Action: A Schemaless Graph Engine for General-Purpose Analytics

Taesung Lee, Jaehyun Ha, Byungchul Tak, and Wook-Shin Han

2nd Author

VLDB 2024 Demo

DoppelGanger++ in Action: A Database Replay System with Fast Dependency Graph Generation

Wonseok Lee, Jaehyun Ha, Wook-Shin Han, Changgyoo Park, Myunggon Park, and Juhyeng Han

2nd Author

SIGMOD 2024 (*equal contribution)

DoppelGanger++: Towards Fast Dependency Graph Generation for Database Replay

Wonseok Lee*, Jaehyun Ha*, Wook-Shin Han, Changgyoo Park, Myunggon Park, Juhyeng Han, and Juchang Lee

Co-first Author

PODS 2023

Guaranteeing the O(AGM/OUT) Runtime for Uniform Sampling and Size Estimation over Joins

Kyoungmin Kim, Jaehyun Ha, George Fletcher, Wook-Shin Han

2nd Author
First Korean recipient of the PODS Paper!