From this section onwards, we will refer to the Seq2Seq and Seq2Dep models with sentences of maximum length 50 and 80 tokens as Seq2Seq-50, Seq2Dep-50, Seq2Seq-80 and Seq2Dep-80.
the BLEU score of Seq2Dep-50 with post-processing was 20.88, which is higher than the BLEU score of 19.31 obtained by the attention-based Seq2Seq-50 model with a gain of up to 1.57 points.