Biography

I am a fourth-year PhD student at IIIS, Tsinghua University. My advisor is Huanchen Zhang. I also work closely with Andy Pavlo. I received my B.S. degree in Computer Science and Mathematics from University of Wisconsin-Madison, advised by Xiangyao Yu. My research interests include columnar storage formats, cloud OLAP databases, and databases on new hardwares/platforms (SIMD, GPU, Wasm).

Publications

NULLS! Revisiting Null Representation in Modern Columnar Formats [paper] [code] [slides]
Xinyu Zeng, Ruijun Meng, Andrew Pavlo, Wes McKinney, and Huanchen Zhang
DaMoN’2024

LeCo: Lightweight Compression via Learning Serial Correlations [paper] [double-column version] [code]
Yihao Liu, Xinyu Zeng, Huanchen Zhang
SIGMOD’2024

An Empirical Evaluation of Columnar Storage Formats [paper] [extended version] [code] [slides]
Xinyu Zeng, Yulong Hui, Jiahong Shen, Andrew Pavlo, Wes McKinney, Huanchen Zhang
VLDB’2023

Cornus: Atomic Commit for Cloud DBMS with Storage Disaggregation [paper] [extended version] [code]
Zhihan Guo, Xinyu Zeng, Kan Wu, Wuh-Chwen Hwang, Ziwei Ren, Xiangyao Yu, Mahesh Balakrishnan, Philip A. Bernstein
VLDB’2022

Teaching

Tsinghua University:

• TA - Intro to Database Systems (Yao Class), Spring 2023

UW-Madison:

• Peer mentor - CS537 Intro to Operating System, Spring 2020
• Peer mentor - CS577 Intro to Algorithms, Fall 2019

Experiences

Software Engineer Intern - RisingWave 02/2021 - 07/2021

Software Engineer Intern - Huawei Cloud 06/2019 - 08/2019

Site last updated: October 2024