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D-separation for the strong extension and the main natural extension of a credal network
Proceedings of the Fourteenth International Symposium on Imprecise Probabilities: Theories and Applications, PMLR 290:23-32, 2025.
Abstract
In the paper, we consider two possible extensions of a credal network: the strong extension and the main natural extension. We prove that for both extensions the condition of the $d$-separation is preserved. The proof is based on some properties of conditional independence in such credal networks.