People

Read more about our group members.
Michael Mathioudakis

Michael is an Associate Professor of Computer Science and leader of the group. His research has two aims: to make data analysis efficient end-to-end (from data management and processing to machine learning and inference); and to apply computing techniques in other disciplines (e.g., analysis of historical corpora or for data-based policy design). Previously, he taught at INSA Lyon for one semester (2017) and spent four years (2013-2017) as a postdoctoral researcher at Aalto University. He completed his doctoral studies at the University of Toronto (2013) and undergraduate studies at the National Technical University of Athens.

Jun Yang

Jun is a doctoral student in Computer Science. Her research focuses on Data Management for Efficient Machine Learning Pipelines.

Sachith Pai

Sachith is a doctoral student in Computer Science, working on learned index structures.

Other members
  • Tuuli Toivanen-Gripentrog. MSc Thesis on "Measuring and Reducing the Environmental Impact of Transformer-Based Recommendation Systems." 2025-
  • Kim Ståhlberg. MSc Thesis on "Efficient Computation of Travel-Time Matrices for Evolving Multi-Modal Transport Networks." 2025-
  • Bo Feng. MSc Thesis on "Evaluating Text Reuse Detection in Historical Corpora: A Comparative Study of BLAST-based and Language Model-based Methods." 2025-
Past members
Ananth Mahadevan, Ph.D.

Ananth completed a Ph.D. in Computer Science during 2020-2024. His research focused on developing efficient end-to-end ML pipelines. For a summary, see on the University webpage.  [, ]
Arpit Merchant, Ph.D.

Arpit completed a Ph.D. in Computer Science during 2019-2023; for a summary, see this on the University webpage. [, After his Ph.D., Arpit took the position of senior data scientist at the in Cambridgeshire, UK.
Other Researchers
  • Sean Xinyuan Zhou. Research assistant, on "Data exploration in VR." 2024.
  • Andreas Maniatis. National Technical University of Athens. Erasmus intern and research assistant. 2023.
  • Yanhao Wang. Postdoctoral researcher. 2020-21. Moved to East China Normal University as Associate Professor.
  • Francesco Fabbri. Doctoral student at UPF Barcelona. Research Assistant. 2020. Worked on "" and published the work at WWW'21; and on "," which received the best paper award at WWW'22.
  • Corinna Hertweck. Research Assistant. 2019. Her MSc thesis on " was published in the Journal of Learning Analytics.
  • Riku Laine. Research Assistant. 2019. Worked on "" and received the best paper at Discovery Science 2020.
MSc Theses
  • Shaiza Mann. . 2025.
  • Susanna Muhli, . 2024.
  • Edgars Gaisins. . 2024.
  • Abdelkader Belmostefa. . 2024.
  • Esa Kuivaniemi. . 2023.
  • Anniina Sainio. . 2023.
  • Eino Keningi. . 2022.
  • Samu Suomela. . 2021.
  • Andrei Comanescu. . 2020.
  • Corinna Hertweck. . 2020.
  • Antti Karikoski. . 2019.
  • Nikola Mandic. . 2018.