How to Implement GCN layers above on LSTM in BatchedDGLGraph

[chosenone75]

I am new to dgl, and I am confused about how to stack a GCN layer over LSTM layer, for example, given a batch of sentences, how to implement such models.

[mufeili]

You can either

• fetch graph related features from DGLGraph objects and perform LSTM computation independent of dgl and then put them back into DGLGraph objects if necessary.

Or

• Use APIs like apply_edges or apply_nodes to update edge or node features within DGLGraph objects.