If I don't have data.y?

[PeterDeSOM]

In the page https://github.com/sunfanyunn/InfoGraph/blob/master/unsupervised/gin.py

I don't have any labeled data.y, so how to learn? Is this unsupervised learning?
I'm finding a fully unsupervised graph-level clustering/classification method.

If data.y should be needed to train, how many graph-level data have to have its label?
I have millions of graph data that cannot be labeled by human efforts.

[sunfanyunn]

duplicate #11