3 papers
math.ST2018
The Maximum Likelihood Threshold of a Path Diagram
Mathias Drton, Christopher Fox, Andreas Käufl +1
Linear structural equation models postulate noisy linear relationships between variables of interest. Each model corresponds to a path diagram, which is a mixed graph with directed…
stat.CO2016
Computation of maximum likelihood estimates in cyclic structural equation models
Mathias Drton, Christopher Fox, Y. Samuel Wang
Software for computation of maximum likelihood estimates in linear structural equation models typically employs general techniques from non-linear optimization, such as quasi-Newto…
math.ST2013
On the causal interpretation of acyclic mixed graphs under multivariate normality
Christopher J. Fox, Andreas Käufl, Mathias Drton
In multivariate statistics, acyclic mixed graphs with directed and bidirected edges are widely used for compact representation of dependence structures that can arise in the presen…