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# Merge input and previous attentions into one vector of the right size. x = core_rnn_cell_impl._linear([inp, attns], cell.output_size, True) which attns = array_ops.zeros(batch_attn_size, dtype=dtype) why use zeros attns ？

y_pred[i] index start from 1?

4

temp = np.arange(len(y_pred[0])) * num_leaf - 1 + np.array(y_pred[i]) why u have -1 in the code, as i konw y_pred[i] is start from 0, so we can write it as...

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