Create a graph for each document :param input_pad: list(list); [sentnum, wordnum] :param label: list(list); [sentnum, sentnum] :param w2s_w: dict(dict) {str: {str: float}}; for each sentence and each word, the tfidf between them :return: G: dgl.DGLGraph
(self, input_pad, label, w2s_w)
source not stored for this graph (policy: none)
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