29 September 2022

BARC welcomes four new PhD students


BARC welcomes PhD students David Rasmussen Lolck, Hanwen Zhang, Joel Andersson, and Shuyi Yan

BARC welcomes four new PhD students this month.

Joel Daniel Andersson joined the team on September 15, 2022. He will be working at DIKU and supervised by Rasmus Pagh.

Joel holds an MSc in Engineering Physics from Lund University and wrote his thesis at CERN on the topic of efficient orbit correction in the High-Luminosity Large Hadron Collider. After graduating he spent two years as a software engineer.

At DIKU he will work within the Providentia project, trying to improve the theory and practice of differentially private algorithms. He looks forward to deepening his understanding of theoretical computer science and becoming a full-fledged member of the BARC community.

His favourite pastimes include amateur running, reading and live music.

Joel Andersson

For more information on the Providentia project click here

Shuyi Yan joined the team on September 15, 2022 and will be supervised by Mikkel Thorup.

Shuyi holds a BSc in Computer Science from Tsinghua University, China, where he did some research about the online stochastic matching problem, where he tried to maximize the online matching assuming all online vertices independently draw their types from a known distribution. 

He has broad interests on algorithms and complexity, and he’s looking forward to collaborating with people in BARC.

In his free time, Shuyi enjoys reading books, playing video games and learning history.

Shuyi Yan

David Rasmussen Lolck joined the team on September 1, 2022 and will be supervised by Mikkel Thorup and Rasmus Pagh.

David is currently working on a topic in differential privacy, though the primary focus of his research is still up in the air.

He holds a BSc from DIKU in Computer Science and is currently completing his MSc, also at DIKU. 

David is active in the Danish competitive programming community. In 2021 his team was the highest ranked Danish team at Northwestern Europe Regional Contest of the ACM International Collegiate Programming Contest, and in 2022 he was team leader of the Danish team at the International Olympiad in Informatics.

In his free time, David enjoys reading and playing board games.


Hanwen Zhang joined BARC on September 1, 2022 and will be supervised by Mikkel Abrahamsen.

Hanwen Zhang is a graduate of the “Yao class” at Tsinghua University, China. He has participated in top level programming and informatics contests, e.g. receiving a gold medal at the National Olympiad in Informatics in 2017 and first place in the Tsinghua Artificial Intelligence Programming Contest 2018.

Hanwen is also a skilled Chinese chess player, and became provincial master in 2014. Recently he has been doing research on tensor network contraction, the k-server problem as well as computational geometry.

Hanwen Zhang