SumPoolingΒΆ

class dgl.nn.mxnet.glob.SumPooling[source]ΒΆ

Bases: mxnet.gluon.block.Block

Apply sum pooling over the nodes in the graph.

\[r^{(i)} = \sum_{k=1}^{N_i} x^{(i)}_k\]
forward(graph, feat)[source]ΒΆ

Compute sum pooling.

Parameters

  • graph (DGLGraph) – The graph.

  • feat (mxnet.NDArray) – The input feature with shape \((N, *)\) where \(N\) is the number of nodes in the graph.

Returns

The output feature with shape \((B, *)\), where \(B\) refers to the batch size.

Return type

mxnet.NDArray