UI network design tool

[lukeyeager]

This has been mentioned many times, most recently at BVLC/caffe#481 (here).

Nice to have:

1. Be able to select TRAIN, VAL and TEST phases for each layer, not just caffe's TRAIN and TEST. Related to Replace input fields with a proper layer BVLC/caffe#1245.
2. Do this in a way that doesn't depend on caffe specifically, but which supports a list of layers from multiple backends. So if you choose caffe you have a certain list of layers and features to work with. If you choose another framework, the same UI tool should work.

[yankov]

What frameworks should be supported besides caffe?

[lukeyeager]

Torch and Theano would probably be the next frameworks added. Torch support is already in progress internally and we should be pushing out a branch with those changes before too long.

I wouldn't worry about actually supporting any Torch layers yet - we just want a design such that we can swap out the list of available layers and options at will. In other words, this should be abstracted away from caffe's NetParameter prototxt definition.

If you want to work on getting this added to DIGITS that would be great! If not, it would probably be a while before I got around to it.

[dzhwinter]

I wanna do that.

[man-sean]

Be able to select TRAIN, VAL and TEST phases for each layer, not just caffe's TRAIN and TEST. Related to BVLC/caffe#1245.

It will be nice if we could also specify weights for each layers from existing models