t3toolbox.OLD_uniform.get_uniform_structure#

t3toolbox.OLD_uniform.get_uniform_structure(cores: UniformTuckerTensorTrain) → UniformStructure#

Get padded structure of uniform Tucker tensor train.

Parameters:

cores (UniformTuckerTensorTrainCores) – Cores of the uniform Tucker tensor train

Returns:

  • num_cores (int) – Number of cores

  • N (int) – Size of each index

  • n (int) – padded Tucker rank

  • r (int) – padded TT-rank

Examples

>>> import numpy as np
>>> import t3toolbox.tucker_tensor_train as t3
>>> import t3toolbox.uniform_tucker_tensor_train as ut3
>>> x = t3.t3_corewise_randn(((14,15,16), (4,6,5), (1,3,2,1)))
>>> cores, masks = ut3.t3_to_ut3(x)
>>> print(ut3.get_uniform_structure(cores))
(3, 16, 6, 3)