dmlc--dgl
Da Zheng
a0721405cf
* fix dgl data. * remove more. * fix. * fix. Co-authored-by: Ubuntu <ubuntu@ip-172-31-16-150.us-west-2.compute.internal>
32 行
1019 B
Python
32 行
1019 B
Python
"""KarateClub Dataset
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"""
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import numpy as np
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import networkx as nx
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from ..graph import DGLGraph
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class KarateClub(object):
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"""
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Zachary's karate club is a social network of a university karate club, described in the paper
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"An Information Flow Model for Conflict and Fission in Small Groups" by Wayne W. Zachary. The
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network became a popular example of community structure in networks after its use by Michelle
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Girvan and Mark Newman in 2002.
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This dataset has only one graph, with ndata 'label' means whether the node is belong to the "Mr. Hi" club.
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"""
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def __init__(self):
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kG = nx.karate_club_graph()
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self.label = np.asarray(
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[kG.nodes[i]['club'] != 'Mr. Hi' for i in kG.nodes]).astype(np.int64)
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g = DGLGraph(kG)
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g.ndata['label'] = self.label
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self.data = [g]
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def __getitem__(self, idx):
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assert idx == 0, "This dataset has only one graph"
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return self.data[0]
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def __len__(self):
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return len(self.data)
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