End-to-End Non-Autoregressive Neural Machine Translation with Connectionist Temporal Classification
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Abstract (arXiv)
Autoregressive decoding is the only part of sequence-to-sequence models that prevents them from massive parallelization at inference time. Non-autoregressive models enable the decoder to generate all output symbols independently in parallel. We present a novel non-autoregressive architecture based on connectionist temporal classification and evaluate it on the task of neural machine translation. Unlike other non-autoregressive methods which operate in several steps, our model can be trained end-to-end. We conduct experiments on the WMT English-Romanian and English-German datasets. Our models achieve a significant speedup over the autoregressive models, keeping the translation quality comparable to other non-autoregressive models.
Key facts. Cited by 72 papers in the map (data through 7 Oct 2026). First posted on arXiv 12 Nov 2018.
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Citing papers per year: 2021: 15; 2022: 28; 2023: 16; 2024: 7; 2025: 3; 2026: 3.
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- 2022Speculative Decoding: Exploiting Speculative Execution for Accelerating Seq2seq Generationcited by 169
- 2022A Survey on Non-Autoregressive Generation for Neural Machine Translation and Beyondcited by 64
- 2021Order-Agnostic Cross Entropy for Non-Autoregressive Machine Translationcited by 57
- 2022Directed Acyclic Transformer for Non-Autoregressive Machine Translationcited by 44
- 2021A Comparative Study on Non-Autoregressive Modelings for Speech-to-Text Generationcited by 27
- 2022On the Learning of Non-Autoregressive Transformerscited by 27
- 2025A Survey on Parallel Text Generation: From Parallel Decoding to Diffusion Language Modelscited by 27
- 2022Revisiting End-to-End Speech-to-Text Translation From Scratchcited by 26
- 2022CTC Alignments Improve Autoregressive Translationcited by 25
- 2021Investigating the Reordering Capability in CTC-based Non-Autoregressive End-to-End Speech Translationcited by 23
- 2022One Reference Is Not Enough: Diverse Distillation with Reference Selection for Non-Autoregressive Translationcited by 20
- 2021Sequence-Level Training for Non-Autoregressive Neural Machine Translationcited by 18
38 more
- 2022Lossless Acceleration for Seq2seq Generation with Aggressive Decodingcited by 18
- 2022Non-Monotonic Latent Alignments for CTC-Based Non-Autoregressive Machine Translationcited by 16
- 2021Enriching Non-Autoregressive Transformer with Syntactic and SemanticStructures for Neural Machine Translationcited by 13
- 2022Viterbi Decoding of Directed Acyclic Transformer for Non-Autoregressive Machine Translationcited by 13
- 2023Candidate Soups: Fusing Candidate Results Improves Translation Quality for Non-Autoregressive Translationcited by 13
- 2023Non-autoregressive Streaming Transformer for Simultaneous Translationcited by 12
- 2021Streaming End-to-End ASR based on Blockwise Non-Autoregressive Modelscited by 11
- 2022Non-Autoregressive Machine Translation: It's Not as Fast as it Seemscited by 11
- 2023Fuzzy Alignments in Directed Acyclic Graph for Non-Autoregressive Machine Translationcited by 11
- 2025ToolACE-MT: Non-Autoregressive Generation for Agentic Multi-Turn Interactioncited by 11
- 2022ELMER: A Non-Autoregressive Pre-trained Language Model for Efficient and Effective Text Generationcited by 10
- 2021Duplex Sequence-to-Sequence Learning for Reversible Machine Translationcited by 9
- 2021Non-autoregressive End-to-end Speech Translation with Parallel Autoregressive Rescoringcited by 9
- 2022LegoNN: Building Modular Encoder-Decoder Modelscited by 9
- 2022SoftCorrect: Error Correction with Soft Detection for Automatic Speech Recognitioncited by 9
- 2023CTC-based Non-autoregressive Speech Translationcited by 9
- 2023DASpeech: Directed Acyclic Transformer for Fast and High-quality Speech-to-Speech Translationcited by 9
- 2023Simultaneous Machine Translation with Tailored Referencecited by 9
- 2021A Streaming End-to-End Framework For Spoken Language Understandingcited by 8
- 2022ngram-OAXE: Phrase-Based Order-Agnostic Cross Entropy for Non-Autoregressive Machine Translationcited by 8
- 2023Directed Acyclic Transformer Pre-training for High-quality Non-autoregressive Text Generationcited by 8
- 2023Non-autoregressive Text Editing with Copy-aware Latent Alignmentscited by 8
- 2022An Efficient Framework for Few-shot Skeleton-based Temporal Action Segmentationcited by 7
- 2024Beyond Next Token Prediction: Patch-Level Training for Large Language Modelscited by 7
- 2022Multi-Granularity Optimization for Non-Autoregressive Translationcited by 6
- 2022Anticipation-Free Training for Simultaneous Machine Translationcited by 5
- 2022Non-Autoregressive Neural Machine Translation: A Call for Claritycited by 5
- 2022A Study of Syntactic Multi-Modality in Non-Autoregressive Machine Translationcited by 5
- 2022Integrating Translation Memories into Non-Autoregressive Machine Translationcited by 5
- 2024Non-autoregressive Sequence-to-Sequence Vision-Language Modelscited by 5
- 2021Modeling Coverage for Non-Autoregressive Neural Machine Translationcited by 4
- 2023Non-autoregressive Machine Translation with Probabilistic Context-free Grammarcited by 4
- 2021Can Latent Alignments Improve Autoregressive Machine Translation?cited by 3
- 2022DePA: Improving Non-autoregressive Machine Translation with Dependency-Aware Decodercited by 3
- 2022Improving Top-K Decoding for Non-Autoregressive Semantic Parsing via Intent Conditioningcited by 3
- 2022Rephrasing the Reference for Non-Autoregressive Machine Translationcited by 3
- 2022Diffusion Glancing Transformer for Parallel Sequence to Sequence Learningcited by 3
- 2023TreePiece: Faster Semantic Parsing via Tree Tokenizationcited by 2
50 most cited of 72 All 72 (JSON)
- 2026Fully Rotation-Equivariant Spectral-Spatial Learning for Multispectral Object Detection6 Jul 2026
- 2026Non-Autoregressive Minimum Bayes' Risk Decoding for Fast Speech Recognition16 Jun 2026
- 2026Reconsidering Positional Supervision in Masked Diffusion Language Model Training30 Jan 2026
- 2025Transformer-Encoder Trees for Efficient Multilingual Machine Translation and Speech Translation22 Sep 2025
- 2025ToolACE-MT: Non-Autoregressive Generation for Agentic Multi-Turn Interaction18 Aug 2025
- 2025A Survey on Parallel Text Generation: From Parallel Decoding to Diffusion Language Models12 Aug 2025
- 2024Beyond Next Token Prediction: Patch-Level Training for Large Language Models17 Jul 2024
- 2024PRoDeliberation: Parallel Robust Deliberation for End-to-End Spoken Language Understanding12 Jun 2024
- 2024CTC-based Non-autoregressive Textless Speech-to-Speech Translation11 Jun 2024
- 2024Scaling the Vocabulary of Non-autoregressive Models for Efficient Generative Retrieval10 Jun 2024
- 2024What Have We Achieved on Non-autoregressive Translation?21 May 2024
- 2024Non-autoregressive Sequence-to-Sequence Vision-Language Models4 Mar 2024
38 more
- 2024Surfing the modeling of PoS taggers in low-resource scenarios4 Feb 2024
- 2023Non-autoregressive Machine Translation with Probabilistic Context-free Grammar14 Nov 2023
- 2023Non-autoregressive Streaming Transformer for Simultaneous Translation23 Oct 2023
- 2023Simultaneous Machine Translation with Tailored Reference20 Oct 2023
- 2023Non-autoregressive Text Editing with Copy-aware Latent Alignments11 Oct 2023
- 2023DASpeech: Directed Acyclic Transformer for Fast and High-quality Speech-to-Speech Translation11 Oct 2023
- 2023Improving Non-autoregressive Translation Quality with Pretrained Language Model, Embedding Distillation and Upsampling Strategy for CTC10 Jun 2023
- 2023CTC-based Non-autoregressive Speech Translation27 May 2023
- 2023Optimizing Non-Autoregressive Transformers with Contrastive Learning23 May 2023
- 2023Extrapolating Multilingual Understanding Models as Multilingual Generators22 May 2023
- 2023Non-Autoregressive Document-Level Machine Translation22 May 2023
- 2023Shared Latent Space by Both Languages in Non-Autoregressive Neural Machine Translation2 May 2023
- 2023Directed Acyclic Transformer Pre-training for High-quality Non-autoregressive Text Generation24 Apr 2023
- 2023TreePiece: Faster Semantic Parsing via Tree Tokenization30 Mar 2023
- 2023Fuzzy Alignments in Directed Acyclic Graph for Non-Autoregressive Machine Translation12 Mar 2023
- 2023Efficient CTC Regularization via Coarse Labels for End-to-End Speech Translation21 Feb 2023
- 2023Candidate Soups: Fusing Candidate Results Improves Translation Quality for Non-Autoregressive Translation27 Jan 2023
- 2022Diffusion Glancing Transformer for Parallel Sequence to Sequence Learning20 Dec 2022
- 2022SoftCorrect: Error Correction with Soft Detection for Automatic Speech Recognition2 Dec 2022
- 2022CUNI Non-Autoregressive System for the WMT 22 Efficient Translation Shared Task1 Dec 2022
- 2022Rephrasing the Reference for Non-Autoregressive Machine Translation30 Nov 2022
- 2022Helping the Weak Makes You Strong: Simple Multi-Task Learning Improves Non-Autoregressive Translators11 Nov 2022
- 2022ELMER: A Non-Autoregressive Pre-trained Language Model for Efficient and Effective Text Generation24 Oct 2022
- 2022Multi-Granularity Optimization for Non-Autoregressive Translation20 Oct 2022
- 2022Integrating Translation Memories into Non-Autoregressive Machine Translation12 Oct 2022
- 2022CTC Alignments Improve Autoregressive Translation11 Oct 2022
- 2022Viterbi Decoding of Directed Acyclic Transformer for Non-Autoregressive Machine Translation11 Oct 2022
- 2022ngram-OAXE: Phrase-Based Order-Agnostic Cross Entropy for Non-Autoregressive Machine Translation8 Oct 2022
- 2022Non-Monotonic Latent Alignments for CTC-Based Non-Autoregressive Machine Translation8 Oct 2022
- 2022An Efficient Framework for Few-shot Skeleton-based Temporal Action Segmentation20 Jul 2022
- 2022A Study of Syntactic Multi-Modality in Non-Autoregressive Machine Translation9 Jul 2022
- 2022On the Learning of Non-Autoregressive Transformers13 Jun 2022
- 2022Revisiting End-to-End Speech-to-Text Translation From Scratch9 Jun 2022
- 2022LegoNN: Building Modular Encoder-Decoder Models7 Jun 2022
- 2022DiMS: Distilling Multiple Steps of Iterative Non-Autoregressive Transformers for Machine Translation7 Jun 2022
- 2022One Reference Is Not Enough: Diverse Distillation with Reference Selection for Non-Autoregressive Translation28 May 2022
- 2022Non-Autoregressive Neural Machine Translation: A Call for Clarity21 May 2022
- 2022Lossless Acceleration for Seq2seq Generation with Aggressive Decoding20 May 2022
50 newest of 72 All 72 (JSON)
- 2022Speculative Decoding: Exploiting Speculative Execution for Accelerating Seq2seq Generationcited by 169
- 2022ELMER: A Non-Autoregressive Pre-trained Language Model for Efficient and Effective Text Generationcited by 10
- 2021Modeling Coverage for Non-Autoregressive Neural Machine Translationcited by 4
- 2022Helping the Weak Makes You Strong: Simple Multi-Task Learning Improves Non-Autoregressive Translatorscited by 1
- 2022Helping the Weak Makes You Strong: Simple Multi-Task Learning Improves Non-Autoregressive Translators11 Nov 2022
- 2022ELMER: A Non-Autoregressive Pre-trained Language Model for Efficient and Effective Text Generation24 Oct 2022
- 2022Speculative Decoding: Exploiting Speculative Execution for Accelerating Seq2seq Generation30 Mar 2022
- 2021Modeling Coverage for Non-Autoregressive Neural Machine Translation24 Apr 2021
- 2022A Survey on Non-Autoregressive Generation for Neural Machine Translation and Beyondcited by 64
- 2021Order-Agnostic Cross Entropy for Non-Autoregressive Machine Translationcited by 57
- 2022Directed Acyclic Transformer for Non-Autoregressive Machine Translationcited by 44
- 2021A Comparative Study on Non-Autoregressive Modelings for Speech-to-Text Generationcited by 27
- 2022On the Learning of Non-Autoregressive Transformerscited by 27
- 2022Revisiting End-to-End Speech-to-Text Translation From Scratchcited by 26
- 2022CTC Alignments Improve Autoregressive Translationcited by 25
- 2021Investigating the Reordering Capability in CTC-based Non-Autoregressive End-to-End Speech Translationcited by 23
- 2022One Reference Is Not Enough: Diverse Distillation with Reference Selection for Non-Autoregressive Translationcited by 20
- 2021Sequence-Level Training for Non-Autoregressive Neural Machine Translationcited by 18
- 2022Lossless Acceleration for Seq2seq Generation with Aggressive Decodingcited by 18
- 2022Non-Monotonic Latent Alignments for CTC-Based Non-Autoregressive Machine Translationcited by 16
12 most cited of 64 All 64 (JSON)
- 2026Fully Rotation-Equivariant Spectral-Spatial Learning for Multispectral Object Detection6 Jul 2026
- 2026Non-Autoregressive Minimum Bayes' Risk Decoding for Fast Speech Recognition16 Jun 2026
- 2025Transformer-Encoder Trees for Efficient Multilingual Machine Translation and Speech Translation22 Sep 2025
- 2024Beyond Next Token Prediction: Patch-Level Training for Large Language Models17 Jul 2024
- 2024PRoDeliberation: Parallel Robust Deliberation for End-to-End Spoken Language Understanding12 Jun 2024
- 2024CTC-based Non-autoregressive Textless Speech-to-Speech Translation11 Jun 2024
- 2024Scaling the Vocabulary of Non-autoregressive Models for Efficient Generative Retrieval10 Jun 2024
- 2024What Have We Achieved on Non-autoregressive Translation?21 May 2024
- 2024Surfing the modeling of PoS taggers in low-resource scenarios4 Feb 2024
- 2023Non-autoregressive Machine Translation with Probabilistic Context-free Grammar14 Nov 2023
- 2023Non-autoregressive Streaming Transformer for Simultaneous Translation23 Oct 2023
- 2023Simultaneous Machine Translation with Tailored Reference20 Oct 2023
12 newest of 64 All 64 (JSON)