Mathias Drton

Nested covariance determinants and restricted trek separation in Gaussian graphical models

2020 · Bernoulli

Directed graphical models specify noisy functional relationships among a collection of random variables. In the Gaussian case, each such model corresponds to a semi-algebraic set of positive definite covariance matrices. The set is given via …

Confidence Sets for Causal Orderings

2025 · Journal of the American Statistical Association

Causal discovery procedures aim to deduce causal relationships among variables in a multivariate dataset. While various methods have been proposed for estimating a single causal model or a single equivalence class of models, less attention …