wehub-resource-sync
35 lines
986 B
Python
35 lines
986 B
Python
"""
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This code was copied from the GCN implementation in DGL examples.
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"""
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import torch
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import torch.nn as nn
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from dgl.nn.pytorch import GraphConv
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class GCN(nn.Module):
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def __init__(
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self, g, in_feats, n_hidden, n_classes, n_layers, activation, dropout
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):
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super(GCN, self).__init__()
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self.g = g
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self.layers = nn.ModuleList()
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# input layer
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self.layers.append(GraphConv(in_feats, n_hidden, activation=activation))
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# hidden layers
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for i in range(n_layers - 1):
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self.layers.append(
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GraphConv(n_hidden, n_hidden, activation=activation)
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)
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# output layer
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self.layers.append(GraphConv(n_hidden, n_classes))
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self.dropout = nn.Dropout(p=dropout)
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def forward(self, features):
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h = features
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for i, layer in enumerate(self.layers):
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if i != 0:
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h = self.dropout(h)
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h = layer(self.g, h)
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return h
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