Leiden University Student Repository

Liolios, Ioannis (2026)

Co-clustering on binary hypergraphs

Master thesis | Mathematics (MSc)

This thesis investigates co-clustering in binary hypergraphs as a means to reduce complexity and improve interpretability in higher-order network data. We adapt a variational expectation–maximization (VEM) framework to jointly cluster nodes and hyperedges, providing a parsimonious representation of latent structure. Through simulation studies, we show that the method recovers parameters with high accuracy when group differences are pronounced, while closer parameter settings require larger sample sizes for reliable performance.

hypergraph

coclustering

expectation-maximization

EM

Variational EM

VEM

latent models

clustering

Author

Liolios, Ioannis

Faculty

Faculty of Science

Specialisation

Applied Mathematics

Supervisors

Signorelli, M.

ECTS Credits

40

Language

en