tensorly.tt_tensor.tt_to_unfolded

tt_to_unfolded(factors, mode)[source]

Returns the unfolding matrix of a tensor given in TT (or Tensor-Train) format

Reassembles a full tensor from ‘factors’ and returns its unfolding matrix with mode given by ‘mode’

Parameters:

factors: list of 3D-arrays

TT factors

mode: int

unfolding matrix to be computed along this mode

Returns:

2-D array

unfolding matrix at mode given by ‘mode’