Department ofPhysics of Complex Systems

Computational biology & bioinformatics

Prof. Eytan Domany

01 / Research

Research

The group develops computational and statistical methods for extracting biological meaning from large, noisy, high-dimensional measurements — gene-expression profiles, mutation data, and other genomic and proteomic readouts. Drawing on ideas from statistical physics, the work treats clustering, dimensionality reduction, and classification as problems of finding robust structure in data where the number of measured features vastly exceeds the number of samples.

A central thread is the analysis of cancer at the level of biological pathways rather than individual genes. By aggregating molecular measurements onto known pathways and protein interaction networks, the group aims to obtain stable, interpretable signatures that distinguish disease subtypes and inform personalized characterization of tumors. The motivation is practical as well as conceptual: pathway-level representations tend to be more reproducible across cohorts than single-gene markers, and they connect statistical patterns to mechanism.

Unsupervised clusteringStatistical-physics methodsPathway enrichment analysisSupervised classificationNetwork analysisDimensionality reduction
Clustering of high-dimensional dataPhysics-inspired clustering algorithms, including superparamagnetic clustering, that identify stable groups in gene-expression and other genomic data without prior assumptions on cluster number.
Pathway-based cancer analysisMapping molecular measurements onto curated pathways and interaction networks to obtain interpretable, reproducible signatures of tumor subtypes.
Personalized tumor characterizationBuilding per-patient pathway and mutation profiles that support patient-specific stratification rather than population-average markers.
Robustness and reproducibility of signaturesAssessing the stability of molecular classifiers across cohorts and platforms, and quantifying when expression-derived signatures generalize.
Feature selection in genomic dataStatistical methods for selecting informative genes and features when the feature count greatly exceeds the sample size.
02 / People

Group members

Special contracts 1
  • Dr. Libi Hertzberg
Research support 1
  • Assif Yitzhaky

2 people are listed with this group, besides the principal investigator. Names and categories are as published in the Weizmann directory and on the group's own page; rooms, phone numbers and e-mail addresses are on the People page.

03 / Output

Recent publications

All publications