On the completeness of an identifiability algorithm for semi-Markovian models

This journal issue, which pays tribute to the memory of Marco Somalvico, is part of a broader initiative, encompassing several journals, that each devoted to him a special issue. This is the result of a coordinated effort, and every different journal issue has its own specific profile. The issue of Annals of Mathematics and Artificial Intelligence you are holding only includes three articles, but they are dense, and provide an indepth treatment of their respective subjects. Yimin Huang and Marco Valtorta develop the mathematics of an identifiability problem in causal Bayesian networks. A causal Bayesian network consists of a causal