Add gcn package to environment

[SaeedFarahani]

add gcn package to standard environment

gcn
https://github.com/parisots/gcn

and dependencies of this package

tensorflow (>0.12)
networkx
joblib

[glemaitre]

The repo that you mentioned is a fork. Why shall installed a fork repository and not the original one?

[SaeedFarahani]

We use "Deep_GCN" model that implement in this version.

[kegl]

We added gcn to the backend.

[SaeedFarahani]

thanks a lot.

[aboucaud]

We added gcn to the backend.

Still, as described in #5, we should make sure we keep track of the software stack installed networkx, joblib, tensorflow on top of the gcn code, so others participants don't have to request it.

[glemaitre]

We can see the following error while using GCN:

absl.flags._exceptions.UnrecognizedFlagError: Unknown command line flag 'save-y-preds'

In case that you are passing flags be aware that the test submission is called on the backend with an extra argument:

ramp_test_submission --submission my_submission --save-y-preds

So if you are catching all arguments be aware that save-y-preds is also there and you need to filter it.