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The advent of Large Language Models (LLM) has reformed the Automatic Speech Recognition (ASR). Prompting LLM with audio embeddings to generate transcriptions becomes the new state-of-the-art ASR. Despite LLMs being trained with an extensive…

Computation and Language · Computer Science 2024-12-11 Yingyi Ma , Zhe Liu , Ozlem Kalinli

High-quality human transcription is essential for training and improving Automatic Speech Recognition (ASR) models. Recent study~\cite{libricrowd} has found that every 1% worse transcription Word Error Rate (WER) increases approximately 2%…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-20 Hanbo Sun , Jian Gao , Xiaomin Wu , Anjie Fang , Cheng Cao , Zheng Du

We present a new method for computing ASR word confidences that effectively mitigates the effect of ASR errors for diverse downstream applications, improves the word error rate of the 1-best result, and allows better comparison of scores…

Computation and Language · Computer Science 2020-06-03 Woojay Jeon , Maxwell Jordan , Mahesh Krishnamoorthy

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

Rare word recognition can be improved by adapting ASR models to synthetic data that includes these words. Further improvements can be achieved through contextual biasing, which trains and adds a biasing module into the model architecture to…

Computation and Language · Computer Science 2025-09-12 Chin Yuen Kwok , Jia Qi Yip , Eng Siong Chng

Neural contextual biasing effectively improves automatic speech recognition (ASR) for crucial phrases within a speaker's context, particularly those that are infrequent in the training data. This work proposes contextual text injection…

Computation and Language · Computer Science 2024-06-12 Zhong Meng , Zelin Wu , Rohit Prabhavalkar , Cal Peyser , Weiran Wang , Nanxin Chen , Tara N. Sainath , Bhuvana Ramabhadran

In this article, we present an approach for non native automatic speech recognition (ASR). We propose two methods to adapt existing ASR systems to the non-native accents. The first method is based on the modification of acoustic models…

Computation and Language · Computer Science 2007-11-08 Ghazi Bouselmi , Dominique Fohr , Irina Illina , Jean-Paul Haton

This paper proposes an adaptation method for end-to-end speech recognition. In this method, multiple automatic speech recognition (ASR) 1-best hypotheses are integrated in the computation of the connectionist temporal classification (CTC)…

Computation and Language · Computer Science 2021-04-01 Cong-Thanh Do , Rama Doddipatla , Thomas Hain

Existing research suggests that automatic speech recognition (ASR) models can benefit from additional contexts (e.g., contact lists, user specified vocabulary). Rare words and named entities can be better recognized with contexts. In this…

Audio and Speech Processing · Electrical Eng. & Systems 2024-07-16 Ruizhe Huang , Mahsa Yarmohammadi , Sanjeev Khudanpur , Daniel Povey

Spelling correction is the task of identifying spelling mistakes, typos, and grammatical mistakes in a given text and correcting them according to their context and grammatical structure. This work introduces "AraSpell," a framework for…

Computation and Language · Computer Science 2024-05-14 Mahmoud Salhab , Faisal Abu-Khzam

When labeled data is insufficient, semi-supervised learning with the pseudo-labeling technique can significantly improve the performance of automatic speech recognition. However, pseudo-labels are often noisy, containing numerous incorrect…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-15 Han Zhu , Dongji Gao , Gaofeng Cheng , Daniel Povey , Pengyuan Zhang , Yonghong Yan

Scores from traditional confidence classifiers (CCs) in automatic speech recognition (ASR) systems lack universal interpretation and vary with updates to the underlying confidence or acoustic models (AMs). In this work, we build…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-02 Amber Afshan , Kshitiz Kumar , Jian Wu

We propose a new method for the calculation of error rates in Automatic Speech Recognition (ASR). This new metric is for languages that contain half characters and where the same character can be written in different forms. We implement our…

Computation and Language · Computer Science 2022-06-16 Priyanshi Shah , Harveen Singh Chadha , Anirudh Gupta , Ankur Dhuriya , Neeraj Chhimwal , Rishabh Gaur , Vivek Raghavan

Large-scale multilingual ASR models like Whisper excel in high-resource settings but face challenges in low-resource scenarios, such as rare languages and code-switching (CS), due to computational costs and catastrophic forgetting. We…

Computation and Language · Computer Science 2025-09-29 Hongli Yang , Yizhou Peng , Hao Huang , Sheng Li

It's challenging to customize transducer-based automatic speech recognition (ASR) system with context information which is dynamic and unavailable during model training. In this work, we introduce a light-weight contextual spelling…

Computation and Language · Computer Science 2021-08-29 Xiaoqiang Wang , Yanqing Liu , Sheng Zhao , Jinyu Li

Automatic Speech Recognition (ASR) plays an important role in speech-based automatic detection of Alzheimer's disease (AD). However, recognition errors could propagate downstream, potentially impacting the detection decisions. Recent…

Computation and Language · Computer Science 2024-12-10 Jiawen Kang , Junan Li , Jinchao Li , Xixin Wu , Helen Meng

In this work, we introduce a simple yet efficient post-processing model for automatic speech recognition (ASR). Our model has Transformer-based encoder-decoder architecture which "translates" ASR model output into grammatically and…

Computation and Language · Computer Science 2019-10-24 Oleksii Hrinchuk , Mariya Popova , Boris Ginsburg

This paper presents a semantic-enhanced receiver framework for transmitting natural language sentences over noisy wireless channels using multiple short block codes. After ASCII encoding, the sentence is divided into segments, each…

Information Theory · Computer Science 2026-04-30 Jiafu Hao , Chentao Yue , Wanchun Liu , Branka Vucetic , Yonghui Li

Recently, end-to-end speech recognition with a hybrid model consisting of the connectionist temporal classification(CTC) and the attention encoder-decoder achieved state-of-the-art results. In this paper, we propose a novel CTC decoder…

Sound · Computer Science 2018-11-02 Zhe Yuan , Zhuoran Lyu , Jiwei Li , Xi Zhou

In this work, we present the first study addressing automatic speech recognition (ASR) for children in an online learning setting. This is particularly important for both child-centric applications and the privacy protection of minors,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-07 Edem Ahadzi , Vishwanath Pratap Singh , Tomi Kinnunen , Ville Hautamaki