30 citations · 169 across the 28 of their papers we have counts for
4 papers · 1 filter
Marginal likelihood and model selection for Gaussian latent tree and forest models
Mathias Drton, Shaowei Lin, Luca Weihs +1
Gaussian latent tree models, or more generally, Gaussian latent forest models have Fisher-information matrices that become singular along interesting submodels, namely, models that…
Exponential Varieties
Mateusz Michałek, Bernd Sturmfels, Caroline Uhler +1
Exponential varieties arise from exponential families in statistics. These real algebraic varieties have strong positivity and convexity properties, familiar from toric varieties a…
Maximum Likelihood Estimation for Linear Gaussian Covariance Models
Piotr Zwiernik, Caroline Uhler, Donald Richards
We study parameter estimation in linear Gaussian covariance models, which are -dimensional Gaussian models with linear constraints on the covariance matrix. Maximum likelihood e…
Cremona linearizations of some classical varieties
Ciro Ciliberto, Maria Angelica Cueto, Massimiliano Mella +2
In this paper we present an effective method for linearizing rational varieties of codimension at least two under Cremona transformations, starting from a given parametrization. Us…