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Word error rate (WER) and character error rate (CER) are standard metrics in Speech Recognition (ASR), but one problem has always been alternative spellings: If one's system transcribes adviser whereas the ground truth has advisor, this…

Computation and Language · Computer Science 2023-06-08 Shigeki Karita , Richard Sproat , Haruko Ishikawa

We consider the task of personalizing ASR models while being constrained by a fixed budget on recording speaker-specific utterances. Given a speaker and an ASR model, we propose a method of identifying sentences for which the speaker's…

Sound · Computer Science 2021-06-03 Abhijeet Awasthi , Aman Kansal , Sunita Sarawagi , Preethi Jyothi

Improving the representation of contextual information is key to unlocking the potential of end-to-end (E2E) automatic speech recognition (ASR). In this work, we present a novel and simple approach for training an ASR context mechanism with…

Audio and Speech Processing · Electrical Eng. & Systems 2018-10-30 Uri Alon , Golan Pundak , Tara N. Sainath

State-of-the-art neural language models (LMs) represented by Transformers are highly complex. Their use of fixed, deterministic parameter estimates fail to account for model uncertainty and lead to over-fitting and poor generalization when…

Computation and Language · Computer Science 2021-02-10 Boyang Xue , Jianwei Yu , Junhao Xu , Shansong Liu , Shoukang Hu , Zi Ye , Mengzhe Geng , Xunying Liu , Helen Meng

We propose a bottom-up framework for automatic speech recognition (ASR) in syllable-based languages by unifying language-universal articulatory attribute modeling with syllable-level prediction. The system first recognizes sequences or…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-11 Hao Yen , Pin-Jui Ku , Sabato Marco Siniscalchi , Chin-Hui Lee

This paper considers the impact of automatic segmentation on the fully-automatic, semi-supervised training of automatic speech recognition (ASR) systems for five-lingual code-switched (CS) speech. Four automatic segmentation techniques were…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-15 N. Wilkinson , A. Biswas , E. Yılmaz , F. de Wet , E. van der Westhuizen , T. R. Niesler

Speech quality in online conferencing applications is typically assessed through human judgements in the form of the mean opinion score (MOS) metric. Since such a labor-intensive approach is not feasible for large-scale speech quality…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-04 Bastiaan Tamm , Helena Balabin , Rik Vandenberghe , Hugo Van hamme

In this paper, we formulate a blind source separation (BSS) framework, which allows integrating U-Net based deep learning source separation network with probabilistic spatial machine learning expectation maximization (EM) algorithm for…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-01 Sania Gul , Muhammad Salman Khan , Syed Waqar Shah

This paper investigates the in-context learning abilities of the Whisper automatic speech recognition (ASR) models released by OpenAI. A novel speech-based in-context learning (SICL) approach is proposed for test-time adaptation, which can…

Audio and Speech Processing · Electrical Eng. & Systems 2024-03-21 Siyin Wang , Chao-Han Huck Yang , Ji Wu , Chao Zhang

We evaluate the character-level translation method for neural semantic parsing on a large corpus of sentences annotated with Abstract Meaning Representations (AMRs). Using a sequence-to-sequence model, and some trivial preprocessing and…

Computation and Language · Computer Science 2017-10-10 Rik van Noord , Johan Bos

Spatial information is a critical clue for multi-channel multi-speaker target speech recognition. Most state-of-the-art multi-channel Automatic Speech Recognition (ASR) systems extract spatial features only during the speech separation…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-27 Yiwen Shao , Yong Xu , Sanjeev Khudanpur , Dong Yu

Automatic speech recognition (ASR) outcomes serve as input for downstream tasks, substantially impacting the satisfaction level of end-users. Hence, the diagnosis and enhancement of the vulnerabilities present in the ASR model bear…

Computation and Language · Computer Science 2024-01-29 Seonmin Koo , Chanjun Park , Jinsung Kim , Jaehyung Seo , Sugyeong Eo , Hyeonseok Moon , Heuiseok Lim

While Automatic Speech Recognition (ASR) is typically benchmarked by word error rate (WER), real-world applications ultimately hinge on semantic fidelity. This mismatch is particularly problematic for dysarthric speech, where articulatory…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-30 Xiuwen Zheng , Sixun Dong , Bornali Phukon , Mark Hasegawa-Johnson , Chang D. Yoo

Speech command recognition (SCR) has been commonly used on resource constrained devices to achieve hands-free user experience. However, in real applications, confusion among commands with similar pronunciations often happens due to the…

Sound · Computer Science 2022-07-05 Zhanheng Yang , Hang Lv , Xiong Wang , Ao Zhang , Lei Xie

Stochastic Gradient Boosting (SGB) is a widely used approach to regularization of boosting models based on decision trees. It was shown that, in many cases, random sampling at each iteration can lead to better generalization performance of…

Machine Learning · Statistics 2019-10-30 Bulat Ibragimov , Gleb Gusev

One challenging problem of robust automatic speech recognition (ASR) is how to measure the goodness of a speech enhancement algorithm (SEA) without calculating the word error rate (WER) due to the high costs of manual transcriptions,…

Audio and Speech Processing · Electrical Eng. & Systems 2018-11-29 Li Chai , Jun Du , Chin-Hui Lee

Speech accents present a serious challenge to the performance of state-of-the-art end-to-end Automatic Speech Recognition (ASR) systems. Even with self-supervised learning and pre-training of ASR models, accent invariance is seldom…

Computation and Language · Computer Science 2024-07-08 Darshan Prabhu , Abhishek Gupta , Omkar Nitsure , Preethi Jyothi , Sriram Ganapathy

Error correction techniques have been used to refine the output sentences from automatic speech recognition (ASR) models and achieve a lower word error rate (WER) than original ASR outputs. Previous works usually use a sequence-to-sequence…

Computation and Language · Computer Science 2022-11-30 Yichong Leng , Xu Tan , Linchen Zhu , Jin Xu , Renqian Luo , Linquan Liu , Tao Qin , Xiang-Yang Li , Ed Lin , Tie-Yan Liu

We study acquisition functions for active learning (AL) for text classification. The Expected Loss Reduction (ELR) method focuses on a Bayesian estimate of the reduction in classification error, recently updated with Mean Objective Cost of…

Machine Learning · Computer Science 2021-10-28 Wei Tan , Lan Du , Wray Buntine

We propose a modular pipeline for the single-channel separation, recognition, and diarization of meeting-style recordings and evaluate it on the Libri-CSS dataset. Using a Continuous Speech Separation (CSS) system with a TF-GridNet…

Audio and Speech Processing · Electrical Eng. & Systems 2024-05-07 Thilo von Neumann , Christoph Boeddeker , Tobias Cord-Landwehr , Marc Delcroix , Reinhold Haeb-Umbach
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