Keegan Evans

First pass: https://github.com/Keegan-Evans/mmvec/blob/pytorch-refactor/examples/refactor/041222pytorchdraft.ipynb

@mortonjt, In your original model, when constructing the ranks, you stack zeros onto the product of U and V [here](https://github.com/biocore/mmvec/blob/master/mmvec/multimodal.py#L214)? Is it necessary or expedient for how you performed the...

@mortonjt, I was working on it this morning and realized that might be the case, thanks for the reply!