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Learning from Pairwise Marginal Independencies
Proceedings of the 31st Conference on Uncertainty in Artificial Intelligence, PMLR R13:654-663, 2015.
Abstract
Dependency graphs (also called association graphs or bidirected graphs) represent marginal independencies amongst a set of variables. We give a characterization of the directed acyclic graphs (DAGs) that faithfully explain a given dependency graph in terms of their transitive closures, and use it to efficiently enumerate such structures. Our results map out the space of faithful causal models for given marginal independence relations, and show to which extent causal inference is possible without using conditional independence tests.