Explanatory Data Analysis

Useful insights from data

Dr. Matthijs van Leeuwen, group leader
Dr. Matthijs van Leeuwen
Group leader
Assistant professor

The EDA group at LIACS, headed by dr. Matthijs van Leeuwen, develops algorithms and tools that enable domain experts to explain what is in their data by finding interpretable patterns and models.

Whether data analysis is exploratory or predictive, it is more useful if the methods are explainable and the results interpretable: explanatory data analysis. Our main focus is on data exploration, as people are often interested in discovering novel and unexpected patterns, but we also investigate prediction that is both accurate and transparent. More technically, our research builds on the state of the art in information theoretic data mining, statistical pattern mining, and interactive data exploration and analytics.

Apart from fundamental data mining research, we collaborate on multidisciplinary data science projects to demonstrate the impact of our research on society. Examples include the Leiden Data Science Research Programme on scientific data, and the SAPPAO project on airline data.

News and updates


26 March 2018

Clément Gautrais is visiting the EDA group for one week. Welcome!


13 February 2018

Daniela and Matthijs visited the group of Carolien Rieffe, at the Institute of Psychology, to discuss new opportunities to analyse sensor data collected on the playground.

New students

5 February 2018

Two Bachelor and two Master students have started their theses projects in the EDA group. Welcome Daniela, Lincen, Ruben, and Valérie!

New group member

1 December 2017

Manon Wintgens, also affiliated with the Law Faculty, has joined the EDA group as PhD student. Welcome!

New group member

1 November 2017

Shannon Kroes, affiliated with Sanquin, has joined the EDA group as external PhD student. Welcome!


4 September 2017

Sepinoud Azimi is visiting the EDA group for one month. Welcome!

EDA is part of

Leiden Institute of Advanced Computer Science

Data Science Research Programme

Leiden Centre of Data Science

Leiden University
Leiden, the Netherlands