About Me
I am a Systems Researcher at the Systems Research Group at Google.
I received my Ph.D. in Computer Science from the University of Wisconsin-Madison, where I was part of the Database Group. I was advised by Prof. Jignesh Patel and my research focuses on making data processing efficient for modern and emerging hardware. I am also interested in Query Optimization.
I received a Bachelor's and a Master's Degree on Computer Science from the University of Athens, Greece. During my studies in Athens, I was part of the MaDgIK group advised by Prof. Yannis Ioannidis.
If you came here looking for Ioannis Chronis, look no further. Ioannis is my official name that nobody uses :)
Publications
Databases in the Era of Memory-Centric Computing
Yannis Chronis, Anastasia Ailamaki, Lawrence Benson, Helena Caminal, Jana Giceva, Dave Patterson, Eric Sedlar, Lisa Wu Wills
CIDR 2025 (to appera)
Yannis Chronis, Yawen Yang, Yu Gan, Sami Abu-El-Haija, Chelsea Lin, Carsten Binnig, Fatma Ozcan
arxiv PDF Simple Adaptive Query Processing vs. Learned Query Optimizers: Observations and Analysis
Yunjia Zhang, Yannis Chronis, Jignesh Patel, Theodoros Rekatsinas
VLDB 2023
SPA: Economical and Workload-Driven Indexing for Data Analytics in the Cloud
Peter Boncz, Yannis Chronis, Jan Finis, Stefan Halfpap, Viktor Leis, Thomas Neumann, Anisoara Nica, Caetano Sauer, Knut Stolze, Marcin Zukowski
ICDE 2023
PDF
Accelerating Database Analytical Query Workloads using an Associative Processor
Helena Caminal*, Yannis Chronis*, Tianshu Wu, Jignesh M. Patel, José F. Martínez
ISCA 2022
PDF
How good is my HTAP system?
Elena Milkai, Yannis Chronis, Kevin P. Gaffney, Zhihan Guo, Jignesh M. Patel, Xiangyao Yu
SIGMOD 2022
PDF
Can Transfer Learning be used to build a Query Optimizer?
Yunjia Zhang, Yannis Chronis, Jignesh Patel, Theodoros Rekatsinas
CIDR 2022
PDF
External Merge Sort for Top-K Queries: Eager input filtering guided by histograms
Yannis Chronis, Thanh Do, Goetz Graefe, Keith Peters
SIGMOD 2020
PDF
Efficiently Searching In-Memory Sorted Arrays: Revenge of the Interpolation Search?
Peter VanSandt, Yannis Chronis, Jignesh M. Patel
SIGMOD 2019
PDF
Code
Fairness in dataflow scheduling in the cloud
Ilia Pietri, Yannis Chronis, Yannis Ioannidis
Information Systems 2019
PDF
Multi-objective optimization of scheduling dataflows on heterogeneous cloud resources
Ilia Pietri, Yannis Chronis, Yannis Ioannidis
IEEE Big Data 2017
PDF
A Relational Approach to Complex Dataflows
Yannis Chronis, Yannis Foufoulas, Vaggelis Nikolopoulos, Alexandros Papadopoulos, Lefteris Stamatogiannakis, Christoforos Svingos, Yannis Ioannidis
Medal @ EDBT 2016
PDF
Teaching
(Spring 2022) Instructor: CS 564 - Database Management Systems: Design and Implementation Canvas
Experience and Awards
2020 Facebook Fellowship Recipient Blog Post
Research Intern, Microsoft Research, Redmond, WA
Summer 2020
Software Engineer Intern, Google, Madison, WI
Summer 2018
Software Engineer Intern, Google, Irvine, CA
Summer 2017
Service
SIGMOD, VLDB, VLDBJ, MICRO, SOCC