Students

Prospective students

PhD students and postdocs

I do not have open vacancies in my group at the moment.

Feel free to contact me in case you are:

1. already pursuing a PhD or working as postdoc, and would like to explore the possibility of working together;
2. looking for a PhD or postdoc position, and would like to inquire about open vacancies or future opportunities.

BSc and MSc students

Are you interested in doing your bachelor’s / master’s thesis project with me? Feel free to get in touch to discuss this possibility! Before sending me a request for supervision, please have a look at this document where I detail the type of information that I need to be able to assess your request and come up with a project that best fits your profile and our shared interests.

PhD students

• Andrei Secuiu (2026+)
  PhD student in Statistics
  Mathematical Institute, Leiden University

• Xiang Li (2025+)
  PhD student in Statistics
  Mathematical Institute, Leiden University

• Lorenzo Carvisiglia (2023+, co-supervisor: Saverio Ranciati)
  PhD student in Statistics
  Department of Statistical Sciences, University of Bologna

• Daniel Gomon (2021-25; co-supervisors: Marta Fiocco and Hein Putter)
  PhD student in Statistics
  Mathematical Institute, Leiden University

Master students

• Erin Tran (2026)
  MSc in Methods and Statistics
  Tilburg University
  Project title: Assessing the impact of different summaries on the predictive performance of penalized regression calibration

• Ioannis Liolios (2024-25)
  MSc in Mathematics
  Mathematical Institute, Leiden University
  Thesis title: Co-clustering on binary hypergraphs

• Xiang Li (2025)
  MSc in Statistics and Data Science
  Mathematical Institute, Leiden University
  Thesis title: A Comparative Study of EstimationTechniques for Generalized Linear Mixed Models

• Astrid Stulemeijer (2023-25; external supervisor: Christian Steglich)
  MSc in Statistics and Data Science
  Mathematical Institute, Leiden University + Department of Sociology, University of Groningen
  Thesis title: Measurement error in longitudinal social network data: the sensitivity of stochastic actor-oriented models

• Jelle Hazenbosch (2023-25; external supervisor: Marjolijn Das)
  MSc in Statistics and Data Science
  Mathematical Institute, Leiden University + Centrale Bureau voor de Statistiek
  Thesis title: Using registration data to evaluate social induction of solar panel adoption

• Eugenia Driusso (2023-24; internal supervisor: Alessandra Brazzale, co-supervisor: Ernst Wit)
  MSc in Statistical Science
  Mathematical Institute, Leiden University + Department of Statistics, University of Padova
  Thesis title: Statistical modelling of time-stamped hypergraphs: a model-based clustering approach

• Lana Broer (2023-24; external supervisor: Alessio Crippa)
  MSc in Statistics and Data Science
  Mathematical Institute, Leiden University + Department of Medical Epidemiology and Biostatistics, Karolinska Institute
  Thesis title: Investigating the prognostic value of prostate-specific antigen in metastatic prostate cancer: a joint modeling and landmark approach

• Sophie Retif (2022-23; internal supervisor: Francesca Ieva)
  MSc in Mathematical Engineering
  Mathematical Institute, Leiden University + Department of Mathematics, Politecnico di Milano, Milan
  Thesis title: Dynamic prediction of survival with many longitudinal predictors: an empirical evaluation

• Henk van der Pol (2022-23)
  MSc in Mathematics
  Mathematical Institute, Leiden University
  Project title: A comparison of methods for the selection of the tuning parameters in penalized regression

• Yibin Feng (2022)
  MSc in Statistics and Data Science
  Mathematical Institute, Leiden University
  Thesis title: An empirical evaluation of methods for the prediction of survival with many longitudinally-measured predictors

• Gergely Talyigas (2021; co-supervisor: Marta Fiocco)
  MSc in Statistics for the Life and Behavioural Sciences
  Mathematical Institute, Leiden University
  Thesis title: A systematic comparison of methods for the validation of binary classification models

• Frank Lefeber (2017; co-supervisor: Ernst Wit)
  MSc in Education and Communication in Mathematics and Natural Sciences
  Johann Bernoulli Institute for Mathematics and Computer Science, University of Groningen
  Thesis title: Heterogeneity for the Stochastic Blockmodel and the Issue of Separation in Political Networks

• Harmen Dijkstra (2016; co-supervisor: Ernst Wit)
  MSc in Mathematics
  Johann Bernoulli Institute for Mathematics and Computer Science, University of Groningen
  Thesis title: Generalized linear models for network analysis

Bachelor students

• Wouter Ockers (2025)
  BSc in Mathematics
  Mathematical Institute, Leiden University
  Thesis title: A comparative study of estimation methods for clustered data: Evaluating the GLMM and HGLM frameworks

• Jana Krabbendam (2025; co-supervisor: Pietro Spitali)
  BSc in Mathematics
  Mathematical Institute, Leiden University + Department of Human Genetics, Leiden University Medical Center
  Thesis title: Identifying Potential Biomarkers for Duchenne Muscular Dystrophy in Urinary Metabolomics Data

• Eva Rovan (2022-24; co-supervisor: Salvatore Battaglia)
  BSc in Mathematics
  Mathematical Institute, Leiden University
  Thesis title: In the Shadows of History: A Competing Risks Analysis of Child Mortality in 19th Century Amsterdam