50 citations · 282 across the 58 of their papers we have counts for
6 papers · 1 filter
Maximum Likelihood Duality for Determinantal Varieties
Jan Draisma, Jose Rodriguez
In a recent paper, Hauenstein, Sturmfels, and the second author discovered a conjectural bijection between critical points of the likelihood function on the complex variety of matr…
Positivity for Gaussian graphical models
Jan Draisma, Seth Sullivant, Kelli Talaska
Gaussian graphical models are parametric statistical models for jointly normal random variables whose dependence structure is determined by a graph. In previous work, we introduced…
Groups acting on Gaussian graphical models
Jan Draisma, Sonja Kuhnt, Piotr Zwiernik
Gaussian graphical models have become a well-recognized tool for the analysis of conditional independencies within a set of continuous random variables. From an inferential point o…
Finiteness results for Abelian tree models
Jan Draisma, Rob H. Eggermont
Equivariant tree models are statistical models used in the reconstruction of phylogenetic trees from genetic data. Here equivariant refers to a symmetry group imposed on the root d…
Tropically Unirational Varieties
Jan Draisma, Bart Frenk
We introduce tropically unirational varieties, which are subvarieties of tori that admit dominant rational maps whose tropicalisation is surjective. The central (and unresolved) qu…
Tensor invariants for certain subgroups of the orthogonal group
Jan Draisma, Guus Regts
Let V be an n-dimensional vector space and let On be the orthogonal group. Motivated by a question of B. Szegedy (B. Szegedy, Edge coloring models and reflection positivity, Journa…