J. Q. SMITH

Department of Statistics, The University of Warwick, Warwick Preprint n. 394

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Algebraic geometry is used to study properties of a class of discrete distributions defined on trees and called algebraically constrained statistical models. This structure has advantages in studying marginal models as it is closed under learning marginal mass functions. Furthermore, it allows a more expressive and general definition of causal...

Department of Statistics, The University of Warwick, Warwick Preprint n. 411

As the Chain Event Graph has a topology which represents sets of conditional independence statements, it becomes especially useful when problems lie naturally in a discrete asymmetric non-product space domain, or when much context-specific information is present. In this paper we show that it can also be a powerful representational tool for a...