Transforming the tensor H into a matrix H(n) is called the mode-n matricization
basic concept
Tensor is a generalization of the concept of vectors and matrices, scalar tensor is 0, the vector is a tensor, the matrix is a second order tensor, and the third-order tensor matrix like a cube.
Matrixed
Zhang is a matrix of quantitative change into a matrix. Sentences may be different depending on the direction of the fiber in the matrix.
If we have a tensor the following:
mode-1 Matricization:
mode-2 Matricization:
mode-3 Matricization:
