Can LLMs Really Learn to Translate a Low-Resource Language from One Grammar Book?
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Abstract (arXiv)
Extremely low-resource (XLR) languages lack substantial corpora for training NLP models, motivating the use of all available resources such as dictionaries and grammar books. Machine Translation from One Book (Tanzer et al., 2024) suggests that prompting long-context LLMs with one grammar book enables English-Kalamang translation, an XLR language unseen by LLMs - a noteworthy case of linguistics helping an NLP task. We investigate the source of this translation ability, finding almost all improvements stem from the book's parallel examples rather than its grammatical explanations. We find similar results for Nepali and Guarani, seen low-resource languages, and we achieve performance comparable to an LLM with a grammar book by simply fine-tuning an encoder-decoder translation model. We then investigate where grammar books help by testing two linguistic tasks, grammaticality judgment and gloss prediction, and we explore what kind of grammatical knowledge helps by introducing a typological feature prompt that achieves leading results on these more relevant tasks. We thus emphasise the importance of task-appropriate data for XLR languages: parallel examples for translation, and grammatical data for linguistic tasks. As we find no evidence that long-context LLMs can make effective use of grammatical explanations for XLR translation, we conclude data collection for multilingual XLR tasks such as translation is best focused on parallel data over linguistic description.
Key facts. Cited by 23 papers in the map (data through 7 Oct 2026). Builds on 32 of its 71 references that are in the map. First posted on arXiv 27 Sep 2024.
Builds on
32 of 71 references.
References · 32
- 2020Language Models are Few-Shot Learnerscited by 32,199
- 2024The Llama 3 Herd of Modelscited by 14,192
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- 2024Gemini 1.5: Unlocking multimodal understanding across millions of tokens of contextcited by 3,175
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- 2024LLMs Are Few-Shot In-Context Low-Resource Language Learnerscited by 68
- 2018Modeling Language Variation and Universals: A Survey on Typological Linguistics for Natural Language Processingcited by 63
- 2022Some Languages are More Equal than Others: Probing Deeper into the Linguistic Disparity in the NLP Worldcited by 55
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- 2022Transformer Grammars: Augmenting Transformer Language Models with Syntactic Inductive Biases at Scalecited by 40
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- 2023Are Character-level Translations Worth the Wait? Comparing ByT5 and mT5 for Machine Translationcited by 14
- 2024Can we teach language models to gloss endangered languages?cited by 14
- 2024Quality or Quantity? On Data Scale and Diversity in Adapting Large Language Models for Low-Resource Translationcited by 13
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- 2024Low-Resource Machine Translation through Retrieval-Augmented LLM Prompting: A Study on the Mambai Languagecited by 12
- 2024Natural Language Processing RELIES on Linguisticscited by 9
- 2024LLM-Assisted Rule Based Machine Translation for Low/No-Resource Languagescited by 6
- 2019Using Interlinear Glosses as Pivot in Low-Resource Multilingual Machine Translationcited by 5
- 2023Robust Generalization Strategies for Morpheme Glossing in an Endangered Language Documentation Contextcited by 4
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Citing papers per year: 2025: 9; 2026: 14.
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- 2025Understanding In-Context Machine Translation for Low-Resource Languages: A Case Study on Manchucited by 12
- 2025Bridging the Linguistic Divide: A Survey on Leveraging Large Language Models for Machine Translationcited by 8
- 2025LingBench++: A Linguistically-Informed Benchmark and Reasoning Framework for Multi-Step and Cross-Cultural Inference with LLMscited by 5
- 2025Read it in Two Steps: Translating Extremely Low-Resource Languages with Code-Augmented Grammar Bookscited by 4
- 2025Compensating for Data with Reasoning: Low-Resource Machine Translation with LLMscited by 2
- 2025Explain-then-Process: Using Grammar Prompting to Enhance Grammatical Acceptability Judgmentscited by 2
- 2025Prompt and circumstance: A word-by-word LLM prompting approach to interlinear glossing for low-resource languagescited by 1
- 2026The Role of Mixed-Language Documents for Multilingual Large Language Model Pretrainingcited by 1
- 2026Massively Multilingual Joint Segmentation and Glossingcited by 1
- 2026Speaking of Language: Reflections on Metalanguage Research in NLPcited by 1
- 2025Testing the Limits of Machine Translation from One Bookcited by 0
- 2025Do Large Language Models Grasp The Grammar? Evidence from Grammar-Book-Guided Probing in Luxembourgishcited by 0
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- 2026Reinforcement Learning Elicits Contextual Learning of Unseen Language Translationcited by 0
- 2026LLMs in the Real World: Evaluating "AI" in Emergency Contextscited by 0
- 2026A POS Tier Is the Key to Automated Annotation for Low-Resource Language Documentation: Neural Interlinear Glossing for Irabu, a Southern Ryukyuan Languagecited by 0
- 2026A Factorial Study of Synthetic Data Generation for Low-Resource Machine Translation using Grammar Bookscited by 0
- 2026The Interlingua Hypothesis: LLMs Translate via a Latent Task-agnostic Feature Spacecited by 0
- 2026Typological Feature Prediction with Large Language Models: An In-Context Learning Approachcited by 0
- 2026LLM Agents as Computational Typologistscited by 0
- 2026Leveraging Fine-grained Error Correction in Korean Speech Recognition for Consultation Servicescited by 0
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- 2026Typological Feature Prediction with Large Language Models: An In-Context Learning Approach3 Sep 2026
- 2026The Interlingua Hypothesis: LLMs Translate via a Latent Task-agnostic Feature Space1 Sep 2026
- 2026A Factorial Study of Synthetic Data Generation for Low-Resource Machine Translation using Grammar Books24 Jul 2026
- 2026A POS Tier Is the Key to Automated Annotation for Low-Resource Language Documentation: Neural Interlinear Glossing for Irabu, a Southern Ryukyuan Language15 Jul 2026
- 2026Reinforcement Learning Elicits Contextual Learning of Unseen Language Translation4 Jun 2026
- 2026LLMs in the Real World: Evaluating "AI" in Emergency Contexts29 May 2026
- 2026Evaluating In-Context Translation with Synchronous Context-Free Grammar Transduction8 Apr 2026
- 2026Speaking of Language: Reflections on Metalanguage Research in NLP3 Apr 2026
- 2026Open Machine Translation for Esperanto31 Mar 2026
- 2026Rashid: A Cipher-Based Framework for Exploring In-Context Language Learning23 Mar 2026
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- 2026Massively Multilingual Joint Segmentation and Glossing16 Jan 2026
- 2026The Role of Mixed-Language Documents for Multilingual Large Language Model Pretraining1 Jan 2026
- 2025Do Large Language Models Grasp The Grammar? Evidence from Grammar-Book-Guided Probing in Luxembourgish28 Oct 2025
- 2025Testing the Limits of Machine Translation from One Book8 Aug 2025
- 2025LingBench++: A Linguistically-Informed Benchmark and Reasoning Framework for Multi-Step and Cross-Cultural Inference with LLMs22 Jul 2025
- 2025Explain-then-Process: Using Grammar Prompting to Enhance Grammatical Acceptability Judgments2 Jun 2025
- 2025Read it in Two Steps: Translating Extremely Low-Resource Languages with Code-Augmented Grammar Books2 Jun 2025
- 2025Compensating for Data with Reasoning: Low-Resource Machine Translation with LLMs28 May 2025
- 2025Bridging the Linguistic Divide: A Survey on Leveraging Large Language Models for Machine Translation2 Apr 2025
- 2025Understanding In-Context Machine Translation for Low-Resource Languages: A Case Study on Manchu17 Feb 2025
- 2025Prompt and circumstance: A word-by-word LLM prompting approach to interlinear glossing for low-resource languages13 Feb 2025
- 2026LLM Agents as Computational Typologistscited by 0
- 2026LLM Agents as Computational Typologists7 Sep 2026
- 2025Understanding In-Context Machine Translation for Low-Resource Languages: A Case Study on Manchucited by 12
- 2025Bridging the Linguistic Divide: A Survey on Leveraging Large Language Models for Machine Translationcited by 8
- 2025Read it in Two Steps: Translating Extremely Low-Resource Languages with Code-Augmented Grammar Bookscited by 4
- 2025Explain-then-Process: Using Grammar Prompting to Enhance Grammatical Acceptability Judgmentscited by 2
- 2025Prompt and circumstance: A word-by-word LLM prompting approach to interlinear glossing for low-resource languagescited by 1
- 2026The Role of Mixed-Language Documents for Multilingual Large Language Model Pretrainingcited by 1
- 2026Massively Multilingual Joint Segmentation and Glossingcited by 1
- 2026Speaking of Language: Reflections on Metalanguage Research in NLPcited by 1
- 2025Testing the Limits of Machine Translation from One Bookcited by 0
- 2025Do Large Language Models Grasp The Grammar? Evidence from Grammar-Book-Guided Probing in Luxembourgishcited by 0
- 2026Rashid: A Cipher-Based Framework for Exploring In-Context Language Learningcited by 0
- 2026Open Machine Translation for Esperantocited by 0
12 most cited of 19 All 19 (JSON)
- 2026Leveraging Fine-grained Error Correction in Korean Speech Recognition for Consultation Services9 Sep 2026
- 2026Typological Feature Prediction with Large Language Models: An In-Context Learning Approach3 Sep 2026
- 2026The Interlingua Hypothesis: LLMs Translate via a Latent Task-agnostic Feature Space1 Sep 2026
- 2026A POS Tier Is the Key to Automated Annotation for Low-Resource Language Documentation: Neural Interlinear Glossing for Irabu, a Southern Ryukyuan Language15 Jul 2026
- 2026Reinforcement Learning Elicits Contextual Learning of Unseen Language Translation4 Jun 2026
- 2026LLMs in the Real World: Evaluating "AI" in Emergency Contexts29 May 2026
- 2026Evaluating In-Context Translation with Synchronous Context-Free Grammar Transduction8 Apr 2026
- 2026Speaking of Language: Reflections on Metalanguage Research in NLP3 Apr 2026
- 2026Open Machine Translation for Esperanto31 Mar 2026
- 2026Rashid: A Cipher-Based Framework for Exploring In-Context Language Learning23 Mar 2026
- 2026Massively Multilingual Joint Segmentation and Glossing16 Jan 2026
- 2026The Role of Mixed-Language Documents for Multilingual Large Language Model Pretraining1 Jan 2026
12 newest of 19 All 19 (JSON)