Survey of Low-Resource Machine Translation
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Abstract (arXiv)
We present a survey covering the state of the art in low-resource machine translation research. There are currently around 7000 languages spoken in the world and almost all language pairs lack significant resources for training machine translation models. There has been increasing interest in research addressing the challenge of producing useful translation models when very little translated training data is available. We present a summary of this topical research field and provide a description of the techniques evaluated by researchers in several recent shared tasks in low-resource MT.
Key facts. Cited by 92 papers in the map (data through 7 Oct 2026). Builds on 171 of its 314 references that are in the map. First posted on arXiv 1 Sep 2021.
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171 of 314 references.
References · 171
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50 most cited of 171 All 171 (JSON)
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Citing papers per year: 2021: 1; 2022: 16; 2023: 11; 2024: 25; 2025: 24; 2026: 15.
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- 2022A Few Thousand Translations Go a Long Way! Leveraging Pre-trained Models for African News Translationcited by 97
- 2024LLMs are Good Sign Language Translatorscited by 76
- 2024(Perhaps) Beyond Human Translation: Harnessing Multi-Agent Collaboration for Translating Ultra-Long Literary Textscited by 49
- 2022On the Blind Spots of Model-Based Evaluation Metrics for Text Generationcited by 48
- 2023XTREME-UP: A User-Centric Scarce-Data Benchmark for Under-Represented Languagescited by 34
- 2023A Paradigm Shift: The Future of Machine Translation Lies with Large Language Modelscited by 19
- 2022SMaLL-100: Introducing Shallow Multilingual Machine Translation Model for Low-Resource Languagescited by 16
- 2024MORL-Prompt: An Empirical Analysis of Multi-Objective Reinforcement Learning for Discrete Prompt Optimizationcited by 16
- 2025Charting the Landscape of African NLP: Mapping Progress and Shaping the Road Aheadcited by 15
- 2024On Subjective Uncertainty Quantification and Calibration in Natural Language Generationcited by 14
- 2025Scaling Low-Resource MT via Synthetic Data Generation with LLMscited by 14
- 2024Lexically Grounded Subword Segmentationcited by 13
38 more
- 2022Domain-Specific Text Generation for Machine Translationcited by 12
- 2024Low-Resource Machine Translation through Retrieval-Augmented LLM Prompting: A Study on the Mambai Languagecited by 12
- 2025Understanding In-Context Machine Translation for Low-Resource Languages: A Case Study on Manchucited by 12
- 2023PAXQA: Generating Cross-lingual Question Answering Examples at Training Scalecited by 10
- 2022Low-Resource Authorship Style Transfer: Can Non-Famous Authors Be Imitated?cited by 9
- 2024Leveraging Synthetic Audio Data for End-to-End Low-Resource Speech Translationcited by 9
- 2025Bridging the Linguistic Divide: A Survey on Leveraging Large Language Models for Machine Translationcited by 8
- 2023On the Pareto Front of Multilingual Neural Machine Translationcited by 7
- 2023Neural Machine Translation for the Indigenous Languages of the Americas: An Introductioncited by 7
- 2022Improving Multilingual Neural Machine Translation System for Indic Languagescited by 6
- 2022Separating Grains from the Chaff: Using Data Filtering to Improve Multilingual Translation for Low-Resourced African Languagescited by 6
- 2023PuoBERTa: Training and evaluation of a curated language model for Setswanacited by 6
- 2022Geographical Distance Is The New Hyperparameter: A Case Study Of Finding The Optimal Pre-trained Language For English-isiZulu Machine Translationcited by 5
- 2022Exploring Diversity in Back Translation for Low-Resource Machine Translationcited by 5
- 2024No Train but Gain: Language Arithmetic for training-free Language Adapters enhancementcited by 5
- 2024A Systematic Review of NLP for Ghanaian Languages: Datasets, Models, and a Research Roadmapcited by 5
- 2024Rule-Based, Neural and LLM Back-Translation: Comparative Insights from a Variant of Ladincited by 5
- 2024Low-resource Machine Translation: what for? who for? An observational study on a dedicated Tetun language translation servicecited by 5
- 2025Evaluating Large Language Models for Cross-Lingual Retrievalcited by 5
- 2022Improving Neural Machine Translation of Indigenous Languages with Multilingual Transfer Learningcited by 4
- 2022Learning to translate by learning to communicatecited by 4
- 2023Enhancing Translation for Indigenous Languages: Experiments with Multilingual Modelscited by 4
- 2023Sheffield's Submission to the AmericasNLP Shared Task on Machine Translation into Indigenous Languagescited by 4
- 2025Connecting the Persian-speaking World through Transliterationcited by 4
- 2025Parallel Corpora for Machine Translation in Low-resource Indic Languages: A Comprehensive Reviewcited by 4
- 2021BitextEdit: Automatic Bitext Editing for Improved Low-Resource Machine Translationcited by 3
- 2023Decomposed Prompting for Machine Translation Between Related Languages using Large Language Modelscited by 3
- 2023Textless Speech-to-Speech Translation With Limited Parallel Datacited by 3
- 2024UMBCLU at SemEval-2024 Task 1A and 1C: Semantic Textual Relatedness with and without machine translationcited by 3
- 2025Found in Translation: Measuring Multilingual LLM Consistency as Simple as Translate then Evaluatecited by 3
- 2026Do LLM hallucination detectors suffer from low-resource effect?cited by 3
- 2022Cost-Effective Training in Low-Resource Neural Machine Translationcited by 2
- 2024The Impact of Syntactic and Semantic Proximity on Machine Translation with Back-Translationcited by 2
- 2024Exploiting Domain-Specific Parallel Data on Multilingual Language Models for Low-resource Language Translationcited by 2
- 2025Limitations of Religious Data and the Importance of the Target Domain: Towards Machine Translation for Guinea-Bissau Creolecited by 2
- 2025Bangla-Bayanno: A 52K-Pair Bengali Visual Question Answering Dataset with LLM-Assisted Translation Refinementcited by 2
- 2026Improving Low-Resource Machine Translation via Round-Trip Reinforcement Learningcited by 2
- 2026SAGE: Sustainable Agent-Guided Expert-tuning for Culturally Attuned Translation in Low-Resource Southeast Asiacited by 2
50 most cited of 92 All 92 (JSON)
- 2026Precision over Scale: A Polish-Silesian Benchmark and a Translation System Outperforming Open-Source and Commercial Models1 Oct 2026
- 2026A Factorial Study of Synthetic Data Generation for Low-Resource Machine Translation using Grammar Books24 Jul 2026
- 2026Andha-Dhun: A First Look at Audio Descriptions in Hindi7 Jul 2026
- 2026Evaluating Large Language Models for Hausa and Fongbe Machine Translation: Benchmarks, Failures, and Metric Reliability20 Jun 2026
- 2026Lius: Translation Model Based Instructional Lingustic Using Continual Instruction Tuning In Kupang Malay10 Jun 2026
- 2026Open Machine Translation for Esperanto31 Mar 2026
- 2026Translation or Recitation? Calibrating Evaluation Scores for Machine Translation of Extremely Low-Resource Languages26 Mar 2026
- 2026SAGE: Sustainable Agent-Guided Expert-tuning for Culturally Attuned Translation in Low-Resource Southeast Asia20 Mar 2026
- 2026Mitigating Structural Noise in Low-Resource S2TT: An Optimized Cascaded Nepali-English Pipeline with Punctuation Restoration25 Feb 2026
- 2026Beyond Many-Shot Translation: Scaling In-Context Demonstrations For Low-Resource Machine Translation4 Feb 2026
- 2026Reflective Translation: Improving Low-Resource Machine Translation via Structured Self-Reflection27 Jan 2026
- 2026Exploring the Use of VLMs for Navigation Assistance for People with Blindness and Low Vision26 Jan 2026
38 more
- 2026Do LLM hallucination detectors suffer from low-resource effect?23 Jan 2026
- 2026Improving Low-Resource Machine Translation via Round-Trip Reinforcement Learning18 Jan 2026
- 2026Context Volume Drives Performance: Tackling Domain Shift in Extremely Low-Resource Translation via RAG15 Jan 2026
- 2025SEA-SafeguardBench: Evaluating AI Safety in SEA Languages and Cultures5 Dec 2025
- 2025Leveraging the Cross-Domain & Cross-Linguistic Corpus for Low Resource NMT: A Case Study On Bhili-Hindi-English Parallel Corpus1 Nov 2025
- 2025Toward Robust Multilingual Adaptation of LLMs for Low-Resource Languages16 Oct 2025
- 2025Evaluating Large Language Models for Cross-Lingual Retrieval18 Sep 2025
- 2025A comparison of pipelines for the translation of a low resource language based on transformers15 Sep 2025
- 2025MoVoC: Morphology-Aware Subword Construction for Geez Script Languages10 Sep 2025
- 2025From Scarcity to Efficiency: Investigating the Effects of Data Augmentation on African Machine Translation9 Sep 2025
- 2025Bangla-Bayanno: A 52K-Pair Bengali Visual Question Answering Dataset with LLM-Assisted Translation Refinement27 Aug 2025
- 2025A French Version of the OLDI Seed Corpus4 Aug 2025
- 2025Toxicity-Aware Few-Shot Prompting for Low-Resource Singlish Translation16 Jul 2025
- 2025The Saturation Point of Backtranslation in High Quality Low Resource English Gujarati Machine Translation12 Jun 2025
- 2025Automatic Correction of Writing Anomalies in Hausa Texts4 Jun 2025
- 2025Found in Translation: Measuring Multilingual LLM Consistency as Simple as Translate then Evaluate28 May 2025
- 2025Charting the Landscape of African NLP: Mapping Progress and Shaping the Road Ahead27 May 2025
- 2025TULUN: Transparent and Adaptable Low-resource Machine Translation24 May 2025
- 2025Scaling Low-Resource MT via Synthetic Data Generation with LLMs20 May 2025
- 2025LLM-Based Evaluation of Low-Resource Machine Translation: A Reference-less Dialect Guided Approach with a Refined Sylheti-English Benchmark18 May 2025
- 2025Bemba Speech Translation: Exploring a Low-Resource African Language5 May 2025
- 2025Limitations of Religious Data and the Importance of the Target Domain: Towards Machine Translation for Guinea-Bissau Creole3 Apr 2025
- 2025Bridging the Linguistic Divide: A Survey on Leveraging Large Language Models for Machine Translation2 Apr 2025
- 2025Parallel Corpora for Machine Translation in Low-resource Indic Languages: A Comprehensive Review2 Mar 2025
- 2025Connecting the Persian-speaking World through Transliteration27 Feb 2025
- 2025NaijaNLP: A Survey of Nigerian Low-Resource Languages27 Feb 2025
- 2025Understanding In-Context Machine Translation for Low-Resource Languages: A Case Study on Manchu17 Feb 2025
- 2024Exploiting Domain-Specific Parallel Data on Multilingual Language Models for Low-resource Language Translation27 Dec 2024
- 2024Towards Global AI Inclusivity: A Large-Scale Multilingual Terminology Dataset (GIST)24 Dec 2024
- 2024Language verY Rare for All18 Dec 2024
- 2024Low-resource Machine Translation: what for? who for? An observational study on a dedicated Tetun language translation service19 Nov 2024
- 2024SPRING Lab IITM's submission to Low Resource Indic Language Translation Shared Task1 Nov 2024
- 2024Dialectal and Low-Resource Machine Translation for Aromanian23 Oct 2024
- 2024A Comparative Study of Translation Bias and Accuracy in Multilingual Large Language Models for Cross-Language Claim Verification14 Oct 2024
- 2024A Systematic Survey of Natural Language Processing for the Greek Language13 Jul 2024
- 2024Rule-Based, Neural and LLM Back-Translation: Comparative Insights from a Variant of Ladin11 Jul 2024
- 2024Enhancing Low-Resource NMT with a Multilingual Encoder and Knowledge Distillation: A Case Study9 Jul 2024
- 2024Language Portability Strategies for Open-domain Dialogue with Pre-trained Language Models from High to Low Resource Languages1 Jul 2024
50 newest of 92 All 92 (JSON)
- 2022A Few Thousand Translations Go a Long Way! Leveraging Pre-trained Models for African News Translationcited by 97
- 2024LLMs are Good Sign Language Translatorscited by 76
- 2022On the Blind Spots of Model-Based Evaluation Metrics for Text Generationcited by 48
- 2023XTREME-UP: A User-Centric Scarce-Data Benchmark for Under-Represented Languagescited by 34
- 2023A Paradigm Shift: The Future of Machine Translation Lies with Large Language Modelscited by 19
- 2022SMaLL-100: Introducing Shallow Multilingual Machine Translation Model for Low-Resource Languagescited by 16
- 2024MORL-Prompt: An Empirical Analysis of Multi-Objective Reinforcement Learning for Discrete Prompt Optimizationcited by 16
- 2025Charting the Landscape of African NLP: Mapping Progress and Shaping the Road Aheadcited by 15
- 2024On Subjective Uncertainty Quantification and Calibration in Natural Language Generationcited by 14
- 2024Lexically Grounded Subword Segmentationcited by 13
- 2022Domain-Specific Text Generation for Machine Translationcited by 12
- 2025Understanding In-Context Machine Translation for Low-Resource Languages: A Case Study on Manchucited by 12
12 most cited of 85 All 85 (JSON)
- 2026Precision over Scale: A Polish-Silesian Benchmark and a Translation System Outperforming Open-Source and Commercial Models1 Oct 2026
- 2026Andha-Dhun: A First Look at Audio Descriptions in Hindi7 Jul 2026
- 2026Evaluating Large Language Models for Hausa and Fongbe Machine Translation: Benchmarks, Failures, and Metric Reliability20 Jun 2026
- 2026Lius: Translation Model Based Instructional Lingustic Using Continual Instruction Tuning In Kupang Malay10 Jun 2026
- 2026Open Machine Translation for Esperanto31 Mar 2026
- 2026Translation or Recitation? Calibrating Evaluation Scores for Machine Translation of Extremely Low-Resource Languages26 Mar 2026
- 2026Mitigating Structural Noise in Low-Resource S2TT: An Optimized Cascaded Nepali-English Pipeline with Punctuation Restoration25 Feb 2026
- 2026Beyond Many-Shot Translation: Scaling In-Context Demonstrations For Low-Resource Machine Translation4 Feb 2026
- 2026Reflective Translation: Improving Low-Resource Machine Translation via Structured Self-Reflection27 Jan 2026
- 2026Do LLM hallucination detectors suffer from low-resource effect?23 Jan 2026
- 2026Improving Low-Resource Machine Translation via Round-Trip Reinforcement Learning18 Jan 2026
- 2026Context Volume Drives Performance: Tackling Domain Shift in Extremely Low-Resource Translation via RAG15 Jan 2026
12 newest of 85 All 85 (JSON)