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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2603.27938 |
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| _version_ | 1866915898287194112 |
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| author | Kondo, Shuhei Sudoh, Katsuhito Matsumoto, Yuji |
| author_facet | Kondo, Shuhei Sudoh, Katsuhito Matsumoto, Yuji |
| contents | Most of modern neural machine translation (NMT) models are based on an encoder-decoder framework with an attention mechanism. While they perform well on standard datasets, they can have trouble in translation of long inputs that are rare or unseen during training. Incorporating target syntax is one approach to dealing with such length-related problems. We propose a novel syntactic decoder that generates a target-language dependency tree in a top-down, left-to-right order. Experiments show that the proposed top-down string-to-tree decoding generalizes better than conventional sequence-to-sequence decoding in translating long inputs that are not observed in the training data. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_27938 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Top-down string-to-dependency Neural Machine Translation Kondo, Shuhei Sudoh, Katsuhito Matsumoto, Yuji Computation and Language Most of modern neural machine translation (NMT) models are based on an encoder-decoder framework with an attention mechanism. While they perform well on standard datasets, they can have trouble in translation of long inputs that are rare or unseen during training. Incorporating target syntax is one approach to dealing with such length-related problems. We propose a novel syntactic decoder that generates a target-language dependency tree in a top-down, left-to-right order. Experiments show that the proposed top-down string-to-tree decoding generalizes better than conventional sequence-to-sequence decoding in translating long inputs that are not observed in the training data. |
| title | Top-down string-to-dependency Neural Machine Translation |
| topic | Computation and Language |
| url | https://arxiv.org/abs/2603.27938 |