tch size, num classes, num latent pixels)) —
The log one-hot vectors of x_t


cumulative (bool) —
If cumulative is False, we use the single step transition matrix t-1->t. If cumulative is True,
we use the cumulative transition matrix 0->t.


Returns

torch.FloatTensor of shape (batch size, num classes - 1, num latent pixels)



Each column of the returned matrix is a row of log probabilities of the complete probability
transition matrix.
When n