Yannis Chronis
chronis [at] cs.wisc.edu
Computer Sciences Department
University of Wisconsin–Madison

About Me

I am a Ph.D. student in the Computer Sciences Department at the University of Wisconsin-Madison and part of the Database Group. My advisor is 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 :)

This fall I will be joining the Systems Research Group at Google!


Accelerating Database Analytical Query Workloads using an Associative Processor
Helena Caminal*, Yannis Chronis*, Tianshu Wu, Jignesh M. Patel, José F. Martínez

How good is my HTAP system?
Elena Milkai, Yannis Chronis, Kevin P. Gaffney, Zhihan Guo, Jignesh M. Patel, Xiangyao Yu

Can Transfer Learning be used to build a Query Optimizer?
Yunjia Zhang, Yannis Chronis, Jignesh Patel, Theodoros Rekatsinas

External Merge Sort for Top-K Queries: Eager input filtering guided by histograms
Yannis Chronis, Thanh Do, Goetz Graefe, Keith Peters

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


(Spring 2022) 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