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資源簡介

gcn

資源截圖

代碼片段和文件信息

import?dgl
import?torch?as?th
import?torch.nn?as?nn
import?dgl.function?as?fn
import?torch.nn.functional?as?F
from?dgl?import?DGLGraph
import?os

gcn_msg?=?fn.copy_src(src=‘h‘?out=‘m‘)

gcn_reduce?=?fn.sum(msg=‘m‘?out=‘h‘)


class?NodeApplyModule(nn.Module):
????def?__init__(self?in_feats?out_feats?activation):
????????super(NodeApplyModule?self).__init__()
????????self.linear?=?nn.Linear(in_feats?out_feats)
????????self.activation?=?activation

????def?forward(self?node):
????????h?=?self.linear(node.data[‘h‘])
????????h?=?self.activation(h)
????????return?{‘h‘:?h}


class?GCN(nn.Module):
????def?__init__(self?in_feats?out_feats?activation):
????????super(GCN?self).__init__()
????????self.apply_mod?=?NodeApplyModule(in_feats?out_feats?activation)

????def?forward(self?g?feature):
????????g.ndata[‘h‘]?=?feature
????????g.update_all(gcn_msg?gcn_reduce)
????????g.apply_nodes(func=self.apply_mod)
????????return?g.ndata.pop(‘h‘)


class?Net(nn.Module):
????def?__init__(self):
????????super(Net?self).__init__()
????????self.gcn1?=?GCN(1433?16?F.relu)
????????self.gcn2?=?GCN(16?7?F.relu)

????def?forward(self?g?features):
????????x?=?self.gcn1(g?features)
????????x?=?self.gcn2(g?x)
????????return?x

GCnet?=?Net()

print(GCnet)


from?dgl.data?import?citat

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