tensorly.cp_tensor
.cp_to_vec
- cp_to_vec(cp_tensor)[source]
Turns the khatri-product of matrices into a vector
(the tensor
factors = [|U_1, ... U_n|]
is converted into a raveled mode-0 unfolding)- Parameters
- cp_tensorCPTensor = (weight, factors)
factors is a list of matrices, all with the same number of columns i.e.:
for u in U: u[i].shape == (s_i, R)
where R is fixed while s_i can vary with i
- Returns
- ndarray
vectorised tensor