R1-T1: Fully Incentivizing Translation Capability in LLMs via Reasoning Learning
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arXiv
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866910968363089920 |
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| author | He, Minggui Liu, Yilun Tao, Shimin Luo, Yuanchang Zeng, Hongyong Su, Chang Zhang, Li Ma, Hongxia Wei, Daimeng Meng, Weibin Yang, Hao Chen, Boxing Yoshie, Osamu |
| author_facet | He, Minggui Liu, Yilun Tao, Shimin Luo, Yuanchang Zeng, Hongyong Su, Chang Zhang, Li Ma, Hongxia Wei, Daimeng Meng, Weibin Yang, Hao Chen, Boxing Yoshie, Osamu |
| contents | Despite recent breakthroughs in reasoning-enhanced large language models (LLMs) like DeepSeek-R1, incorporating inference-time reasoning into machine translation (MT), where human translators naturally employ structured, multi-layered reasoning chain-of-thoughts (CoTs), is yet underexplored. Existing methods either design a fixed CoT tailored for a specific MT sub-task (e.g., literature translation), or rely on synthesizing CoTs unaligned with humans and supervised fine-tuning (SFT) prone to overfitting, limiting their adaptability to diverse translation scenarios. This paper introduces R1-Translator (R1-T1), a novel framework to achieve inference-time reasoning for general MT via reinforcement learning (RL) with human-aligned CoTs comprising six common patterns. Our approach pioneers three innovations: (1) extending reasoning-based translation to broader MT scenarios (e.g., multilingual MT, domain MT) unseen in the training phase; (2) formalizing six expert-curated CoT templates that mirror hybrid human strategies like context-aware paraphrasing and back translation; and (3) enabling self-evolving CoT discovery through RL. Both human and automatic evaluation results indicate a steady translation performance improvement in a total of 10+ languages and 40+ translation directions on Flores-101 test set and four domain-specific MT tasks, especially on the languages unseen from training. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2502_19735 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | R1-T1: Fully Incentivizing Translation Capability in LLMs via Reasoning Learning He, Minggui Liu, Yilun Tao, Shimin Luo, Yuanchang Zeng, Hongyong Su, Chang Zhang, Li Ma, Hongxia Wei, Daimeng Meng, Weibin Yang, Hao Chen, Boxing Yoshie, Osamu Computation and Language Despite recent breakthroughs in reasoning-enhanced large language models (LLMs) like DeepSeek-R1, incorporating inference-time reasoning into machine translation (MT), where human translators naturally employ structured, multi-layered reasoning chain-of-thoughts (CoTs), is yet underexplored. Existing methods either design a fixed CoT tailored for a specific MT sub-task (e.g., literature translation), or rely on synthesizing CoTs unaligned with humans and supervised fine-tuning (SFT) prone to overfitting, limiting their adaptability to diverse translation scenarios. This paper introduces R1-Translator (R1-T1), a novel framework to achieve inference-time reasoning for general MT via reinforcement learning (RL) with human-aligned CoTs comprising six common patterns. Our approach pioneers three innovations: (1) extending reasoning-based translation to broader MT scenarios (e.g., multilingual MT, domain MT) unseen in the training phase; (2) formalizing six expert-curated CoT templates that mirror hybrid human strategies like context-aware paraphrasing and back translation; and (3) enabling self-evolving CoT discovery through RL. Both human and automatic evaluation results indicate a steady translation performance improvement in a total of 10+ languages and 40+ translation directions on Flores-101 test set and four domain-specific MT tasks, especially on the languages unseen from training. |
| title | R1-T1: Fully Incentivizing Translation Capability in LLMs via Reasoning Learning |
| topic | Computation and Language |
| url | https://arxiv.org/abs/2502.19735 |