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Automatic Speech Recognition (ASR) systems remain prone to errors that affect downstream applications. In this paper, we propose LIR-ASR, a heuristic optimized iterative correction framework using LLMs, inspired by human auditory…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-23 Yutong Liu , Ziyue Zhang , Cheng Huang , Yongbin Yu , Xiangxiang Wang , Yuqing Cai , Nyima Tashi

This paper presents a keystroke-based framework for detecting LLM-assisted cheating in Korean, addressing key gaps in prior research regarding language coverage, cognitive context, and the granularity of LLM involvement. Our proposed…

Machine Learning · Computer Science 2025-08-01 Dong Hyun Roh , Rajesh Kumar , An Ngo

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

Language models (LMs) have been commonly adopted to boost the performance of automatic speech recognition (ASR) particularly in domain adaptation tasks. Conventional way of LM training treats all the words in corpora equally, resulting in…

Computation and Language · Computer Science 2023-10-18 Yingyi Ma , Zhe Liu , Ozlem Kalinli

This paper proposes a method to relax the conditional independence assumption of connectionist temporal classification (CTC)-based automatic speech recognition (ASR) models. We train a CTC-based ASR model with auxiliary CTC losses in…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-11 Jumon Nozaki , Tatsuya Komatsu

Despite remarkable achievements, automatic speech recognition (ASR) in low-resource scenarios still faces two challenges: high-quality data scarcity and high computational demands. This paper proposes EThai-ASR, the first to apply large…

Sound · Computer Science 2025-05-29 Mingchen Shao , Xinfa Zhu , Chengyou Wang , Bingshen Mu , Hai Li , Ying Yan , Junhui Liu , Danming Xie , Lei Xie

This paper introduces Thunder-Tok, a new Korean tokenizer designed to reduce token fertility without compromising model performance. Our approach uses a rule-based pre-tokenization method that aligns with the linguistic structure of the…

Computation and Language · Computer Science 2025-06-19 Gyeongje Cho , Yeonkyoun So , Chanwoo Park , Sangmin Lee , Sungmok Jung , Jaejin Lee

In the realm of spoken language understanding (SLU), numerous natural language understanding (NLU) methodologies have been adapted by supplying large language models (LLMs) with transcribed speech instead of conventional written text. In…

Automatic Speech Recognition (ASR) has witnessed a profound research interest. Recent breakthroughs have given ASR systems different prospects such as faithfully transcribing spoken language, which is a pivotal advancement in building…

Computation and Language · Computer Science 2024-03-05 Ankitha Sudarshan , Vinay Samuel , Parth Patwa , Ibtihel Amara , Aman Chadha

Deep biasing (DB) enhances the performance of end-to-end automatic speech recognition (E2E-ASR) models for rare words or contextual phrases using a bias list. However, most existing methods treat bias phrases as sequences of subwords in a…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-02 Yui Sudo , Yosuke Fukumoto , Muhammad Shakeel , Yifan Peng , Shinji Watanabe

Automatic speech recognition (ASR) systems have achieved strong performance on general transcription tasks. However, they continue to struggle with recognizing rare named entities and adapting to domain mismatches. In contrast, large…

Computation and Language · Computer Science 2025-08-21 Shaoshi Ling , Guoli Ye

This paper describes a new baseline system for automatic speech recognition (ASR) in the CHiME-4 challenge to promote the development of noisy ASR in speech processing communities by providing 1) state-of-the-art system with a simplified…

Sound · Computer Science 2018-03-28 Szu-Jui Chen , Aswin Shanmugam Subramanian , Hainan Xu , Shinji Watanabe

Recently, self-supervised pre-training has gained success in automatic speech recognition (ASR). However, considering the difference between speech accents in real scenarios, how to identify accents and use accent features to improve ASR is…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-16 Keqi Deng , Songjun Cao , Long Ma

Attention-based sequence-to-sequence models for speech recognition jointly train an acoustic model, language model (LM), and alignment mechanism using a single neural network and require only parallel audio-text pairs. Thus, the language…

Audio and Speech Processing · Electrical Eng. & Systems 2019-02-20 Jinxi Guo , Tara N. Sainath , Ron J. Weiss

Automatic speech recognition (ASR) via call is essential for various applications, including AI for contact center (AICC) services. Despite the advancement of ASR, however, most publicly available call-based speech corpora such as…

A new label smoothing method that makes use of prior knowledge of a language at human level, homophone, is proposed in this paper for automatic speech recognition (ASR). Compared with its forerunners, the proposed method uses pronunciation…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-15 Yi Zheng , Xianjie Yang , Xuyong Dang

Only a handful of the world's languages are abundant with the resources that enable practical applications of speech processing technologies. One of the methods to overcome this problem is to use the resources existing in other languages to…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-19 Piotr Żelasko , Laureano Moro-Velázquez , Mark Hasegawa-Johnson , Odette Scharenborg , Najim Dehak

Neural sequence-to-sequence systems deliver state-of-the-art performance for automatic speech recognition (ASR). When using appropriate modeling units, e.g., byte-pair encoded characters, these systems are in principal open vocabulary…

Computation and Language · Computer Science 2021-07-07 Christian Huber , Juan Hussain , Sebastian Stüker , Alexander Waibel

Self-supervised pretraining for Automated Speech Recognition (ASR) has shown varied degrees of success. In this paper, we propose to jointly learn representations during pretraining from two different modalities: speech and text. The…

Computation and Language · Computer Science 2021-08-30 Zhehuai Chen , Yu Zhang , Andrew Rosenberg , Bhuvana Ramabhadran , Gary Wang , Pedro Moreno

User studies have shown that reducing the latency of our simultaneous lecture translation system should be the most important goal. We therefore have worked on several techniques for reducing the latency for both components, the automatic…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-24 Thai Son Nguyen , Jan Niehues , Eunah Cho , Thanh-Le Ha , Kevin Kilgour , Markus Muller , Matthias Sperber , Sebastian Stueker , Alex Waibel