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Recent work in speech-to-speech translation (S2ST) has focused primarily on offline settings, where the full input utterance is available before any output is given. This, however, is not reasonable in many real-world scenarios. In…

Computation and Language · Computer Science 2023-06-05 Liam Dugan , Anshul Wadhawan , Kyle Spence , Chris Callison-Burch , Morgan McGuire , Victor Zordan

Simultaneous Speech Translation (SimulST) requires balancing high translation quality with low latency. Recent work introduced REINA, a method that trains a Read/Write policy based on estimating the information gain of reading more audio.…

Machine Learning · Computer Science 2026-04-14 Joseph Liu , Nameer Hirschkind , Xiao Yu , Mahesh Kumar Nandwana

Simultaneous speech translation (SST) outputs translations in parallel with streaming speech input, balancing translation quality and latency. While large language models (LLMs) have been extended to handle the speech modality, streaming…

Computation and Language · Computer Science 2025-04-23 Keqi Deng , Wenxi Chen , Xie Chen , Philip C. Woodland

Simultaneous Machine Translation (SiMT) requires high-quality translations under strict real-time constraints, which traditional policies with only READ/WRITE actions cannot fully address. We extend the action space of SiMT with four…

Computation and Language · Computer Science 2026-01-19 Qianen Zhang , Zeyu Yang , Satoshi Nakamura

Simultaneous machine translation (SimulMT) speeds up the translation process by starting to translate before the source sentence is completely available. It is difficult due to limited context and word order difference between languages.…

Computation and Language · Computer Science 2022-05-05 Chih-Chiang Chang , Shun-Po Chuang , Hung-yi Lee

Incremental Decoding is an effective framework that enables the use of an offline model in a simultaneous setting without modifying the original model, making it suitable for Low-Latency Simultaneous Speech Translation. However, this…

Computation and Language · Computer Science 2024-01-12 Jiaxin Guo , Zhanglin Wu , Zongyao Li , Hengchao Shang , Daimeng Wei , Xiaoyu Chen , Zhiqiang Rao , Shaojun Li , Hao Yang

Recent advancements in large language models (LLMs) have demonstrated their remarkable capabilities across various language tasks. Inspired by the success of text-to-text translation refinement, this paper investigates how LLMs can improve…

Computation and Language · Computer Science 2025-01-28 Huaixia Dou , Xinyu Tian , Xinglin Lyu , Jie Zhu , Junhui Li , Lifan Guo

Simultaneous Machine Translation (SiMT) generates target translations while reading the source sentence. It relies on a policy to determine the optimal timing for reading sentences and generating translations. Existing SiMT methods…

Computation and Language · Computer Science 2024-06-13 Shoutao Guo , Shaolei Zhang , Zhengrui Ma , Min Zhang , Yang Feng

Simultaneous Speech Translation (SimulST) enables real-time cross-lingual communication by jointly optimizing speech recognition and machine translation under strict latency constraints. Existing systems struggle to balance translation…

Computation and Language · Computer Science 2025-10-30 Chenyang Le , Bing Han , Jinshun Li , Songyong Chen , Yanmin Qian

Simultaneous Machine Translation (SiMT) requires high-quality translations under strict real-time constraints, which traditional encoder-decoder policies with only READ/WRITE actions cannot fully address. We extend the action space of SiMT…

Computation and Language · Computer Science 2025-09-29 Qianen Zhang , Satoshi Nakamura

Simultaneous Machine Translation (SiMT) generates translations while reading the source sentence, necessitating a policy to determine the optimal timing for reading and generating words. Despite the remarkable performance achieved by Large…

Computation and Language · Computer Science 2024-02-21 Shoutao Guo , Shaolei Zhang , Zhengrui Ma , Min Zhang , Yang Feng

Streaming speech-to-text translation (StreamST) is the task of automatically translating speech while incrementally receiving an audio stream. Unlike simultaneous ST (SimulST), which deals with pre-segmented speech, StreamST faces the…

Sound · Computer Science 2024-06-11 Sara Papi , Marco Gaido , Matteo Negri , Luisa Bentivogli

Simultaneous machine translation (SiMT) starts to output translation while reading the source sentence and needs a precise policy to decide when to output the generated translation. Therefore, the policy determines the number of source…

Computation and Language · Computer Science 2023-05-30 Shoutao Guo , Shaolei Zhang , Yang Feng

How to solve the data scarcity problem for end-to-end speech-to-text translation (ST)? It's well known that data augmentation is an efficient method to improve performance for many tasks by enlarging the dataset. In this paper, we propose…

Computation and Language · Computer Science 2022-12-08 Xuxin Cheng , Qianqian Dong , Fengpeng Yue , Tom Ko , Mingxuan Wang , Yuexian Zou

Simultaneous machine translation (SMT) takes streaming input utterances and incrementally produces target text. Existing SMT methods mainly use the partial utterance that has already arrived at the input and the generated hypothesis.…

Computation and Language · Computer Science 2025-06-03 Siqi Ouyang , Oleksii Hrinchuk , Zhehuai Chen , Vitaly Lavrukhin , Jagadeesh Balam , Lei Li , Boris Ginsburg

This paper describes USTC-NELSLIP's submissions to the IWSLT2021 Simultaneous Speech Translation task. We proposed a novel simultaneous translation model, Cross Attention Augmented Transducer (CAAT), which extends conventional RNN-T to…

Computation and Language · Computer Science 2021-07-12 Dan Liu , Mengge Du , Xiaoxi Li , Yuchen Hu , Lirong Dai

Streaming speech translation (StreamST) requires determining appropriate timing, known as policy, to generate translations while continuously receiving source speech inputs, balancing low latency with high translation quality. However,…

Computation and Language · Computer Science 2025-07-15 Shoutao Guo , Xiang Li , Mengge Liu , Wei Chen , Yang Feng

Although neural machine translation (NMT) has achieved impressive progress recently, it is usually trained on the clean parallel data set and hence cannot work well when the input sentence is the production of the automatic speech…

Computation and Language · Computer Science 2018-11-05 Xiang Li , Haiyang Xue , Wei Chen , Yang Liu , Yang Feng , Qun Liu

Simultaneous machine translation (SiMT) outputs translation while reading source sentence and hence requires a policy to decide whether to wait for the next source word (READ) or generate a target word (WRITE), the actions of which form a…

Computation and Language · Computer Science 2022-03-23 Shaolei Zhang , Yang Feng

Simultaneous speech-to-speech translation (Simul-S2ST, a.k.a streaming speech translation) outputs target speech while receiving streaming speech inputs, which is critical for real-time communication. Beyond accomplishing translation…

Computation and Language · Computer Science 2024-06-06 Shaolei Zhang , Qingkai Fang , Shoutao Guo , Zhengrui Ma , Min Zhang , Yang Feng