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We present a state-of-the-art end-to-end Automatic Speech Recognition (ASR) model. We learn to listen and write characters with a joint Connectionist Temporal Classification (CTC) and attention-based encoder-decoder network. The encoder is…

Computation and Language · Computer Science 2017-06-12 Takaaki Hori , Shinji Watanabe , Yu Zhang , William Chan

In this paper, we introduce an enhanced textual adversarial attack method, known as Saliency Attention and Semantic Similarity driven adversarial Perturbation (SASSP). The proposed scheme is designed to improve the effectiveness of…

Cryptography and Security · Computer Science 2025-05-22 Hetvi Waghela , Jaydip Sen , Sneha Rakshit

Speech-aware LLMs (SLLMs) have recently achieved state-of-the-art ASR performance; however, they still fail to accurately transcribe bias words that appear rarely or never in the training data. Contextual biasing mechanisms are commonly…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-15 Sashi Novitasari , Takashi Fukuda , Kurata Gakuto , George Saon

We propose a semi-supervised learning method for building end-to-end rich transcription-style automatic speech recognition (RT-ASR) systems from small-scale rich transcription-style and large-scale common transcription-style datasets. In…

Computation and Language · Computer Science 2021-07-13 Tomohiro Tanaka , Ryo Masumura , Mana Ihori , Akihiko Takashima , Shota Orihashi , Naoki Makishima

It is difficult for an E2E ASR system to recognize words such as entities appearing infrequently in the training data. A widely used method to mitigate this issue is feeding contextual information into the acoustic model. Previous works…

Sound · Computer Science 2023-06-09 Zhanheng Yang , Sining Sun , Xiong Wang , Yike Zhang , Long Ma , Lei Xie

While speech recognition Word Error Rate (WER) has reached human parity for English, continuous speech recognition scenarios such as voice typing and meeting transcriptions still suffer from segmentation and punctuation problems, resulting…

Computation and Language · Computer Science 2023-01-11 Piyush Behre , Sharman Tan , Padma Varadharajan , Shuangyu Chang

In recent years, automatic speech recognition (ASR) models greatly improved transcription performance both in clean, low noise, acoustic conditions and in reverberant environments. However, all these systems rely on the availability of…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-18 Francesco Nespoli , Daniel Barreda , Patrick A. Naylor

In aspect-based sentiment analysis (ABSA), many neural models are equipped with an attention mechanism to quantify the contribution of each context word to sentiment prediction. However, such a mechanism suffers from one drawback: only a…

Computation and Language · Computer Science 2021-03-08 Jinsong Su , Jialong Tang , Hui Jiang , Ziyao Lu , Yubin Ge , Linfeng Song , Deyi Xiong , Le Sun , Jiebo Luo

End-to-end automatic speech recognition (ASR) commonly transcribes audio signals into sequences of characters while its performance is evaluated by measuring the word-error rate (WER). This suggests that predicting sequences of words…

Computation and Language · Computer Science 2018-12-07 Jan Kremer , Lasse Borgholt , Lars Maaløe

Accent variability has posed a huge challenge to automatic speech recognition~(ASR) modeling. Although one-hot accent vector based adaptation systems are commonly used, they require prior knowledge about the target accent and cannot handle…

Sound · Computer Science 2022-04-22 Xun Gong , Yizhou Lu , Zhikai Zhou , Yanmin Qian

The attention-based encoder-decoder modeling paradigm has achieved promising results on a variety of speech processing tasks like automatic speech recognition (ASR), text-to-speech (TTS) and among others. This paradigm takes advantage of…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-23 Shi-Yan Weng , Berlin Chen

Neural sequence-to-sequence systems deliver state-of-the-art performance for automatic speech recognition. When using appropriate modeling units, e.g., byte-pair encoding, these systems are in principle open vocabulary systems. In practice,…

Computation and Language · Computer Science 2026-03-05 Christian Huber , Alexander Waibel

Sequence-to-sequence attention-based models integrate an acoustic, pronunciation and language model into a single neural network, which make them very suitable for multilingual automatic speech recognition (ASR). In this paper, we are…

Audio and Speech Processing · Electrical Eng. & Systems 2018-06-15 Shiyu Zhou , Shuang Xu , Bo Xu

This paper addresses the problem of automatic speech recognition (ASR) of a target speaker in background speech. The novelty of our approach is that we focus on a wakeup keyword, which is usually used for activating ASR systems like smart…

Audio and Speech Processing · Electrical Eng. & Systems 2018-11-08 Yusuke Kida , Dung Tran , Motoi Omachi , Toru Taniguchi , Yuya Fujita

Multi-speaker automatic speech recognition (ASR) is crucial for many real-world applications, but it requires dedicated modeling techniques. Existing approaches can be divided into modular and end-to-end methods. Modular approaches separate…

Computation and Language · Computer Science 2023-06-22 Simon Berger , Peter Vieting , Christoph Boeddeker , Ralf Schlüter , Reinhold Haeb-Umbach

Accurately finding the wrong words in the automatic speech recognition (ASR) hypothesis and recovering them well-founded is the goal of speech error correction. In this paper, we propose a non-autoregressive speech error correction method.…

Computation and Language · Computer Science 2024-07-19 Yuchun Shu , Bo Hu , Yifeng He , Hao Shi , Longbiao Wang , Jianwu Dang

Non-autoregressive (NAR) automatic speech recognition (ASR) models predict tokens independently and simultaneously, bringing high inference speed. However, there is still a gap in the accuracy of the NAR models compared to the…

Sound · Computer Science 2025-01-10 Ziyang Zhuang , Chenfeng Miao , Kun Zou , Ming Fang , Tao Wei , Zijian Li , Ning Cheng , Wei Hu , Shaojun Wang , Jing Xiao

In this study, we propose a novel multi-modal end-to-end neural approach for automated assessment of non-native English speakers' spontaneous speech using attention fusion. The pipeline employs Bi-directional Recurrent Convolutional Neural…

Computation and Language · Computer Science 2021-11-30 Manraj Singh Grover , Yaman Kumar , Sumit Sarin , Payman Vafaee , Mika Hama , Rajiv Ratn Shah

The recognition of rare named entities, such as personal names and terminologies, is challenging for automatic speech recognition (ASR) systems, especially when they are not frequently observed in the training data. In this paper, we…

Artificial Intelligence · Computer Science 2024-06-07 Yuang Li , Min Zhang , Chang Su , Yinglu Li , Xiaosong Qiao , Mengxin Ren , Miaomiao Ma , Daimeng Wei , Shimin Tao , Hao Yang

Recently, cross-attention-based contextual automatic speech recognition (ASR) models have made notable advancements in recognizing personalized biasing phrases. However, the effectiveness of cross-attention is affected by variations in…

Computation and Language · Computer Science 2025-09-09 Yue Gu , Zhihao Du , Ying Shi , Shiliang Zhang , Qian Chen , Jiqing Han