gcn_basis.py 文件源码

def combine_messages(self, forward_messages, backward_messages, self_loop_messages, previous_code, mode='train'):
        mtr_f = self.get_graph().forward_incidence_matrix(normalization=('global', 'recalculated'))
        mtr_b = self.get_graph().backward_incidence_matrix(normalization=('global', 'recalculated'))

        collected_messages_f = tf.sparse_tensor_dense_matmul(mtr_f, forward_messages)
        collected_messages_b = tf.sparse_tensor_dense_matmul(mtr_b, backward_messages)

        updated_vertex_embeddings = collected_messages_f + collected_messages_b

        if self.use_nonlinearity:
            activated = tf.nn.relu(updated_vertex_embeddings + self_loop_messages)
        else:
            activated = updated_vertex_embeddings + self_loop_messages

        return activated