Browsing Department of Pure Mathematics and Mathematical Statistics (DPMMS) by Author "Wermuth, N"
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Pairwise Markov properties for regression graphs
Sadeghi, Kayvan; Wermuth, N (WileyStat, 2016-11-13)With a sequence of regressions, one may generate joint probability distributions. One starts with a joint, marginal distribution of context variables having possibly a concentration graph structure and continues with an ...
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Total Positivity in Markov Structures
Fallat, S; Lauritzen, S; Sadeghi, Kayvan; Uhler, C; Wermuth, N; Zwiernik, K (Institute of Mathematical StatisticsAnnals of Statistics, 2017-06)We discuss properties of distributions that are multivariate totally positive of order two (MTP$_{2}$) related to conditional independence. In particular, we show that any independence model generated by an MTP$_{2}$ ...