Project 3: Comparison of heterogeneous or uncertain network structures

Diane Duroux

University of Liège
Advisor: Kristel Van Steen

Project description

Seeking reproducibility of findings is an essential part of research. This becomes a tedious and cumbersome task when big data with dependant features or multiple potentially interdependent data sources become available. Earlier work has shown that this is already the case for GWAIS compared to easier GWAS. The main problem is that replication studies make the assumption that research is repeated in all its important details, including population representation, but also analytic methodology and the type or number of measurements collected for sample. Here we will focus on study results in genetic epidemiology that can be represented as networks consisting of nodes and edges. By adopting a gene centric approach and by graphically presenting study results in a gene network, we aim to develop a generic strategy to compare results from studies that are analytically heterogeneous and for which different multi-space data panels are available. We will investigate how study specificity can be incorporated in the strategy, borrowing ideas from meta-analyses with random effects.


  1. Significant subnetwork discovery in uncertain network structures
    Host: ETH Zürich
  2. Discovery disease-related gene networks from multi-scale data
    Host: Roche


  1. Duroux Diane, Climente-González Héctor, Wienbrandt Lars, & Van Steen Kristel. (2020). Network Aggregation to Enhance Results Derived from Multiple Analytics. In Artificial Intelligence Applications and Innovations. AIAI 2020. IFIP Advances in Information and Communication Technology, vol 583. Springer, Cham.
  2. Diane Duroux, Héctor Climente-González, Chloé-Agathe Azencott, Kristel Van Steen, Interpretable network-guided epistasis detection, GigaScience, Volume 11, 2022, giab093,
  3. Andrew Walakira, Junior Ocira, Diane Duroux, Ramouna Fouladi, MihaMoškon, Damjana Rozman, and Kristel Van Steen. Detecting gene–gene interactions from GWAS using diffusion kernel principal components. BMC Bioinformatics 23, 57 (2022).
  4. Renzo J. M. Riemens, Gunter Kenis, Jennifer Nolz, Sonia C. Susano Chaves, Diane Duroux, Ehsan Pishva, Diego Mastroeni, Kristel Van Steen, Thomas Haaf, and Daniël L. A. van den Hove. Targeted Methylation Profiling of Single Laser-Capture Microdissected Post-Mortem Brain Cells by Adapted Limiting Dilution Bisulfite Pyrosequencing (LDBSP). International Journal of Molecular Sciences. 2022; 23(24):15571.