Conference/Journal Papers

Benchmarking, Analyzing, and Optimizing WA of Partial Compaction in RocksDB.
Wei Ran*, Zichen Zhu*, Andrew Kryczka, Jay Zhuang, Manos Athanassoulis (* Equal Contribution)
EDBT, 2025.

NOCAP: Near-Optimal Correlation-Aware Partitioning Join
Zichen Zhu, Xiao Hu, Manos Athanassoulis
SIGMOD, 2024.

Enabling Timely and Persistent Deletion in LSM-Engines.
Subhadeep Sarkar, Tarikul Islam Papon, Zichen Zhu, Dimitris Staratzis, Manos Athanassoulis
TODS, 2023.

Multi-Task Processing in Vertex-Centric Graph Systems: Evaluations and Insights.
Siqiang Luo*, Zichen Zhu*, Xiaokui Xiao, Yin Yang, Chunbo Li, Ben Kao (* Equal Contribution)
EDBT, 2023.

Building Deletion-Compliant Data Systems.
Manos Athanassoulis, Subhadeep Sarkar, Tarikul Islam Papon, Zichen Zhu, Dimitris Staratzis
IEEE Data Engineering Bulletin (DEBull), 2022.

Constructing and Analyzing the LSM Compaction Design Space
Subhadeep Sarkar, Dimitris Staratzis, Zichen Zhu, Manos Athanassoulis
VLDB, 2021.

Effective and Efficient Discovery of Top-k Meta Paths in Heterogeneous Information Networks
Zichen Zhu, Tsz Nam Chan, Reynold Cheng, Loc Do, Zhipeng Huang, Hoaci Zhang
TKDE, 2020.

Evaluating Top-k Meta Path Queries on Large Heterogeneous Information Networks
Zichen Zhu, Reynold Cheng, Loc Do, Zhipeng Huang, Hoaci Zhang
ICDM, 2018.

Design Continuums and the Path Toward Self-Designing Key-Value Stores that Know and Learn
Stratos Idreos, Niv Dayan, Wilson Qin, Mali Akmanalp, Sophie Hilgard, Andrew Ross, James Lennon, Varun Jain, Harshita Gupta, David Li, Zichen Zhu
CIDR, 2019.

Workshop/Demo

KVBench: A Key-Value Benchmarking Suite
Zichen Zhu, Arpita Saha, Manos Athanassoulis, Subhadeep Sakar
DBTest, 2024.

SHaMBa: Reducing Bloom Filter Overhead in LSM Trees
Zichen Zhu
VLDB PhD Workshop, 2023.

Acheron: Persisting Tombstones in LSM Engines
Zichen Zhu, Subhadeep Sakar, Manos Athanassoulis
SIGMOD Demo, 2023.

LSM-Tree Under (Memory) Pressure
Ju Hyoung Mun, Zichen Zhu, Aneesh Raman, Manos Athanassoulis
ADMS, 2022.

VC-Tune: Tuning and Exploring Distributed Vertex-Centric Graph Systems
Zichen Zhu, Siqiang Luo, Xiaokui Xiao, Yin Yang, Dingheng Mo, Yufei Han
ICDE Demo, 2022.

Compactionary: A Dictionary for LSM compactions
Subhadeep Sakar, Kaijie Chen, Zichen Zhu, Manos Athanassoulis
SIGMOD Demo, 2022.

Reducing Bloom Filter CPU Overhead in LSM-Trees on Modern Storage Devices
Zichen Zhu, Ju Hyoung Mun, Aneesh Raman, Manos Athanassoulis
DaMoN, 2021.