Kaie Kubjas

Kaie Kubjas

Assistant Professor

Aalto University


Since 2017 I am a tenure-track assistant professor in the Department of Mathematics and Systems Analysis at Aalto University. I received my PhD in mathematics in 2013 from Freie Universität Berlin under supervision of Christian Haase and Klaus Altmann. As a postdoctoral researcher I visited Max Planck Institute for Mathematics, Aalto Science Institute, Simons Institute for the Theory of Computing, Institute of Data, Systems and Society at MIT and PolSys Team at Sorbonne University.

I work in the field of applied nonlinear algebra. I am particularly interested in algebraic statistics and applications in biology, for example in phylogenetics and 3D genome reconstruction. I am also interested in questions about matrix and tensor decompositions, e.g. nonnegative and positive semidefinite factorizations, and low-rank matrix/tensor completion. Besides nonlinear algebra, I like to use tools from combinatorics, polyhedral geometry and convex optimization.

Academy of Finland is funding my research through project funding for early-career researchers.


  • Algebraic statistics
  • Nonlinear algebra in biology
  • Special matrix and tensor decompositions


  • PhD in Mathematics, 2013

    Free University of Berlin

  • BSc in Mathematics, 2007

    University of Tartu

Recent Publications

Model Embeddability for Symmetric Group-Based Models

Exact Solutions in Log-Concave Maximum Likelihood Estimation

Maximum Likelihood Estimation of Toric Fano Varieties


  • Aalto University
    Department of Mathematics and Systems Analysis
    P.O. Box 11100
    FI-00076 Aalto
  • Visiting address: Room Y237, Otakaari 1, 02150 Espoo