URL details: Rmomal.github.io/publication/nestor/
URL title:
Accounting for Missing Actors in Interaction Network Inference from Abundance Data | R. Momal
URL description:
Network inference aims at unraveling the dependency structure relating jointly observed variables. Graphical models provide a general framework to distinguish between marginal and conditional dependency. Unobserved variables (missing actors) may induce apparent conditional dependencies. In the context of count data, we introduce a mixture of Poisson log-normal distributions with tree-shaped graphical models, to recover the dependency structure, including missing actors. We design a variational EM algorithm
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