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math.ST2024
Learning latent tree models with small query complexity
Luc Devroye, Gabor Lugosi, Piotr Zwiernik
We consider the problem of structure recovery in a graphical model of a tree where some variables are latent. Specifically, we focus on the Gaussian case, which can be reformulated…
math.ST2024
Property testing in graphical models: testing small separation numbers
Luc Devroye, Gábor Lugosi, Piotr Zwiernik
In many statistical applications, the dimension is too large to handle for standard high-dimensional machine learning procedures. This is particularly true for graphical models, wh…