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cs.LG2022
EM's Convergence in Gaussian Latent Tree Models
Yuval Dagan, Constantinos Daskalakis, Anthimos Vardis Kandiros
We study the optimization landscape of the log-likelihood function and the convergence of the Expectation-Maximization (EM) algorithm in latent Gaussian tree models, i.e. tree-stru…
cs.LG2022★ 1 cited
Learning and Testing Latent-Tree Ising Models Efficiently
Davin Choo, Yuval Dagan, Constantinos Daskalakis +1
We provide time- and sample-efficient algorithms for learning and testing latent-tree Ising models, i.e. Ising models that may only be observed at their leaf nodes. On the learning…