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cs.LG2021
Active-LATHE: An Active Learning Algorithm for Boosting the Error Exponent for Learning Homogeneous Ising Trees
Fengzhuo Zhang, Anshoo Tandon, Vincent Y. F. Tan
The Chow-Liu algorithm (IEEE Trans.~Inform.~Theory, 1968) has been a mainstay for the learning of tree-structured graphical models from i.i.d.\ sampled data vectors. Its theoretica…
stat.ML2021
Robustifying Algorithms of Learning Latent Trees with Vector Variables
Fengzhuo Zhang, Vincent Y. F. Tan
We consider learning the structures of Gaussian latent tree models with vector observations when a subset of them are arbitrarily corrupted. First, we present the sample complexiti…