[edit]
A Sound and Complete Algorithm for Learning Causal Models from Relational Data
Proceedings of the 29th Conference on Uncertainty in Artificial Intelligence, PMLR R11:510-519, 2013.
Abstract
The PC algorithm learns maximally oriented causal Bayesian networks. However, there is no equivalent complete algorithm for learning the structure of relational models, a more ex- pressive generalization of Bayesian networks. Recent developments in the theory and repre- sentation of relational models support lifted reasoning about conditional independence. This enables a powerful constraint for ori- enting bivariate dependencies and forms the basis of a new algorithm for learning struc- ture. We present the relational causal discov- ery (RCD) algorithm that learns causal rela- tional models. We prove that RCD is sound and complete, and we present empirical re- sults that demonstrate effectiveness.