How to add tensors of different shapes?

1

Hi,

I would like to know if it is possible to add a tensor of size [8, 55, 110] and a tensor of size [8, 20, 40] to be [8, 75, 150]. I tried using:

torch.cat

but the issue is:

All tensors must either have the same shape (except in the concatenating dimension) or be empty.

2

Hi Joey!

It’s not clear that your desired operation makes sense.

What would you expect the result of “adding” these tensors together to be?

You start with 8 * 55 * 110 + 8 * 20 * 40 individual numbers, but you
want your result to consist of 8 * 75 * 150 individual numbers – many more.
Where are all these extra numbers supposed to come from and what should
they be equal to?

Best.

K. Frank