ther through syntactic encoders Eriguchi et al., 2016), multi-task learning objectives (Chen et al., 2017;Eriguchi et al., 2017), or direct addition of syntactic tokens to the target sequence (Nadejde et al., 2017;Aharoni and Goldberg, 2017).
these syntax-aware models only employ the standard decoding process of seq2seq models, i.e.