Total positivity in Markov structures
We discuss properties of distributions that are multivariate totally positive of order two (MTP2) related to conditional independence. In particular, we show that any independence model generated by an MTP2 distribution is a compositional semi-graphoid which is upward-stable and singletontransitive....
Main Authors: | Fallat, Shaun, Lauritzen, Steffen, Sadeghi, Kayvan, Uhler, Caroline, Wermuth, Nanny, Zwiernik, Piotr |
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Format: | Article |
Language: | English |
Published: |
Institute of Mathematical Statistics
2021
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Online Access: | https://hdl.handle.net/1721.1/133956 |
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