XLS-R: Self-supervised Cross-lingual Speech Representation Learning at Scale
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Abstract (arXiv)
This paper presents XLS-R, a large-scale model for cross-lingual speech representation learning based on wav2vec 2.0. We train models with up to 2B parameters on nearly half a million hours of publicly available speech audio in 128 languages, an order of magnitude more public data than the largest known prior work. Our evaluation covers a wide range of tasks, domains, data regimes and languages, both high and low-resource. On the CoVoST-2 speech translation benchmark, we improve the previous state of the art by an average of 7.4 BLEU over 21 translation directions into English. For speech recognition, XLS-R improves over the best known prior work on BABEL, MLS, CommonVoice as well as VoxPopuli, lowering error rates by 14-34% relative on average. XLS-R also sets a new state of the art on VoxLingua107 language identification. Moreover, we show that with sufficient model size, cross-lingual pretraining can outperform English-only pretraining when translating English speech into other languages, a setting which favors monolingual pretraining. We hope XLS-R can help to improve speech processing tasks for many more languages of the world.
Key facts. Cited by 589 papers in the map (data through 7 Oct 2026). Builds on 52 of its 69 references that are in the map. First posted on arXiv 17 Nov 2021.
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52 of 69 references.
References · 52
- 2017Attention Is All You Needcited by 59,932
- 2018BERT: Pre-training of Deep Bidirectional Transformers for Language Understandingcited by 40,204
- 2014Adam: A Method for Stochastic Optimizationcited by 36,960
- 2020Language Models are Few-Shot Learnerscited by 32,199
- 2019Exploring the Limits of Transfer Learning with a Unified Text-to-Text Transformercited by 14,491
- 2020A Simple Framework for Contrastive Learning of Visual Representationscited by 11,979
- 2018Representation Learning with Contrastive Predictive Codingcited by 7,662
- 2019Momentum Contrast for Unsupervised Visual Representation Learningcited by 7,482
- 2021Emerging Properties in Self-Supervised Vision Transformerscited by 6,893
- 2019Unsupervised Cross-lingual Representation Learning at Scalecited by 3,907
- 2020wav2vec 2.0: A Framework for Self-Supervised Learning of Speech Representationscited by 3,853
- 2021Switch Transformers: Scaling to Trillion Parameter Models with Simple and Efficient Sparsitycited by 3,014
38 more
- 2015Neural Machine Translation of Rare Words with Subword Unitscited by 2,898
- 2016Categorical Reparameterization with Gumbel-Softmaxcited by 2,708
- 2020mT5: A massively multilingual pre-trained text-to-text transformercited by 1,813
- 2019fairseq: A Fast, Extensible Toolkit for Sequence Modelingcited by 1,486
- 2019Common Voice: A Massively-Multilingual Speech Corpuscited by 1,358
- 2019Cross-lingual Language Model Pretrainingcited by 1,088
- 2020Multilingual Denoising Pre-training for Neural Machine Translationcited by 1,028
- 2016Deep Networks with Stochastic Depthcited by 973
- 2018XNLI: Evaluating Cross-lingual Sentence Representationscited by 913
- 2016Training Deep Nets with Sublinear Memory Costcited by 825
- 2020XTREME: A Massively Multilingual Multi-task Benchmark for Evaluating Cross-lingual Generalizationcited by 738
- 2017VoxCeleb: a large-scale speaker identification datasetcited by 714
- 2021SUPERB: Speech processing Universal PERformance Benchmarkcited by 652
- 2019CCNet: Extracting High Quality Monolingual Datasets from Web Crawl Datacited by 544
- 2020Unsupervised Cross-lingual Representation Learning for Speech Recognitioncited by 496
- 2020MLS: A Large-Scale Multilingual Dataset for Speech Researchcited by 467
- 2019Libri-Light: A Benchmark for ASR with Limited or No Supervisioncited by 462
- 2021VoxPopuli: A Large-Scale Multilingual Speech Corpus for Representation Learning, Semi-Supervised Learning and Interpretationcited by 455
- 2019Reducing Transformer Depth on Demand with Structured Dropoutcited by 434
- 2021SpeechBrain: A General-Purpose Speech Toolkitcited by 404
- 2021W2v-BERT: Combining Contrastive Learning and Masked Language Modeling for Self-Supervised Speech Pre-Trainingcited by 340
- 2019vq-wav2vec: Self-Supervised Learning of Discrete Speech Representationscited by 335
- 2019Massively Multilingual Neural Machine Translation in the Wild: Findings and Challengescited by 253
- 2021ZeRO-Infinity: Breaking the GPU Memory Wall for Extreme Scale Deep Learningcited by 253
- 2020Pushing the Limits of Semi-Supervised Learning for Automatic Speech Recognitioncited by 185
- 2021XTREME-R: Towards More Challenging and Nuanced Multilingual Evaluationcited by 167
- 2021Robust wav2vec 2.0: Analyzing Domain Shift in Self-Supervised Pre-Trainingcited by 148
- 2020Multi-task self-supervised learning for Robust Speech Recognitioncited by 127
- 2020VoxLingua107: a Dataset for Spoken Language Recognitioncited by 118
- 2020Unsupervised pretraining transfers well across languagescited by 100
- 2020Self-training and Pre-training are Complementary for Speech Recognitioncited by 98
- 2021BigSSL: Exploring the Frontier of Large-Scale Semi-Supervised Learning for Automatic Speech Recognitioncited by 88
- 2021Larger-Scale Transformers for Multilingual Masked Language Modelingcited by 86
- 2018The challenge of realistic music generation: modelling raw audio at scalecited by 63
- 2021Scaling End-to-End Models for Large-Scale Multilingual ASRcited by 61
- 2019Cloze-driven Pretraining of Self-attention Networkscited by 41
- 2020Learning Robust and Multilingual Speech Representationscited by 39
- 2021Large-Scale Self- and Semi-Supervised Learning for Speech Translationcited by 36
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Citing papers per year: 2021: 1; 2022: 70; 2023: 139; 2024: 139; 2025: 116; 2026: 124.
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