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Automatic detection of speaker confidence is critical for adaptive computing but remains constrained by limited labelled data and the subjectivity of paralinguistic annotations. This paper proposes a semi-supervised hybrid framework that…

Sound · Computer Science 2026-05-13 Adam Wynn , Jingyun Wang

Preference-based reinforcement learning (PbRL) has shown impressive capabilities in training agents without reward engineering. However, a notable limitation of PbRL is its dependency on substantial human feedback. This dependency stems…

Machine Learning · Computer Science 2024-05-30 Fengshuo Bai , Rui Zhao , Hongming Zhang , Sijia Cui , Ying Wen , Yaodong Yang , Bo Xu , Lei Han

Natural language processing of conversational speech requires the availability of high-quality transcripts. In this paper, we express our skepticism towards the recent reports of very low Word Error Rates (WERs) achieved by modern Automatic…

We investigate continued pretraining (CPT) for adapting wav2vec2-bert-2.0 to Swahili automatic speech recognition (ASR). Our approach combines unlabeled audio with limited labeled data through pseudo-labeled CPT followed by supervised…

Sound · Computer Science 2026-03-13 Hillary Mutisya , John Mugane

Voice activity detection is an essential pre-processing component for speech-related tasks such as automatic speech recognition (ASR). Traditional supervised VAD systems obtain frame-level labels from an ASR pipeline by using, e.g., a…

Sound · Computer Science 2021-05-11 Heinrich Dinkel , Shuai Wang , Xuenan Xu , Mengyue Wu , Kai Yu

Voice technology has become ubiquitous recently. However, the accuracy, and hence experience, in different languages varies significantly, which makes the technology not equally inclusive. The availability of data for different languages is…

Computation and Language · Computer Science 2023-05-24 Jan Silovsky , Liuhui Deng , Arturo Argueta , Tresi Arvizo , Roger Hsiao , Sasha Kuznietsov , Yiu-Chang Lin , Xiaoqiang Xiao , Yuanyuan Zhang

This paper proposes a novel, resource-efficient approach to Visual Speech Recognition (VSR) leveraging speech representations produced by any trained Automatic Speech Recognition (ASR) model. Moving away from the resource-intensive trends…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 Hendrik Laux , Emil Mededovic , Ahmed Hallawa , Lukas Martin , Arne Peine , Anke Schmeink

We propose a simple method for automatic speech recognition (ASR) by fine-tuning BERT, which is a language model (LM) trained on large-scale unlabeled text data and can generate rich contextual representations. Our assumption is that given…

Sound · Computer Science 2021-02-02 Wen-Chin Huang , Chia-Hua Wu , Shang-Bao Luo , Kuan-Yu Chen , Hsin-Min Wang , Tomoki Toda

In this paper, we aim to improve the performance of in-the-wild Facial Expression Recognition (FER) by exploiting semi-supervised learning. Large-scale labeled data and deep learning methods have greatly improved the performance of image…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Jing Jiang , Weihong Deng

Self-training provides an effective means of using an extremely small amount of labeled data to create pseudo-labels for unlabeled data. Many state-of-the-art self-training approaches hinge on different regularization methods to prevent…

Computation and Language · Computer Science 2022-02-08 Hazel Kim , Jaeman Son , Yo-Sub Han

We present improvements in automatic speech recognition (ASR) for Somali, a currently extremely under-resourced language. This forms part of a continuing United Nations (UN) effort to employ ASR-based keyword spotting systems to support…

Computation and Language · Computer Science 2019-07-09 Astik Biswas , Raghav Menon , Ewald van der Westhuizen , Thomas Niesler

The performances of automatic speech recognition (ASR) systems are usually evaluated by the metric word error rate (WER) when the manually transcribed data are provided, which are, however, expensively available in the real scenario. In…

Computation and Language · Computer Science 2020-09-01 Kai Fan , Jiayi Wang , Bo Li , Shiliang Zhang , Boxing Chen , Niyu Ge , Zhijie Yan

Building Automatic Speech Recognition (ASR) systems from scratch is significantly challenging, mostly due to the time-consuming and financially-expensive process of annotating a large amount of audio data with transcripts. Although several…

Audio and Speech Processing · Electrical Eng. & Systems 2020-09-22 Mengli Cheng , Chengyu Wang , Xu Hu , Jun Huang , Xiaobo Wang

Text-only and semi-supervised training based on audio-only data has gained popularity recently due to the wide availability of unlabeled text and speech data. In this work, we propose incorporating text-only and semi-supervised training…

Computation and Language · Computer Science 2022-06-30 Ke Hu , Tara N. Sainath , Yanzhang He , Rohit Prabhavalkar , Trevor Strohman , Sepand Mavandadi , Weiran Wang

New-age conversational agent systems perform both speech emotion recognition (SER) and automatic speech recognition (ASR) using two separate and often independent approaches for real-world application in noisy environments. In this paper,…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-29 Lokesh Bansal , S. Pavankumar Dubagunta , Malolan Chetlur , Pushpak Jagtap , Aravind Ganapathiraju

Speech is a rich signal, and labeled audio-text pairs are costly, making self-supervised learning essential for scalable representation learning. A core challenge in speech SSL is generating pseudo-labels that are both informative and…

Computation and Language · Computer Science 2025-09-22 Liuyuan Jiang , Xiaodong Cui , Brian Kingsbury , Tianyi Chen , Lisha Chen

Recent advances in deep neural models allow us to build reliable named entity recognition (NER) systems without handcrafting features. However, such methods require large amounts of manually-labeled training data. There have been efforts on…

Computation and Language · Computer Science 2018-09-12 Jingbo Shang , Liyuan Liu , Xiang Ren , Xiaotao Gu , Teng Ren , Jiawei Han

The transcription quality of automatic speech recognition (ASR) systems degrades significantly when transcribing audios coming from unseen domains. We propose an unsupervised error correction method for unsupervised ASR domain adaption,…

Sound · Computer Science 2022-09-27 Long Mai , Julie Carson-Berndsen

Training state-of-the-art Automated Speech Recognition (ASR) models typically requires a substantial amount of transcribed speech. In this work, we demonstrate that a modality-matched joint speech and text model can be leveraged to train a…

Computation and Language · Computer Science 2022-10-24 Zhehuai Chen , Ankur Bapna , Andrew Rosenberg , Yu Zhang , Bhuvana Ramabhadran , Pedro Moreno , Nanxin Chen

Attention-based encoder-decoder architectures such as Listen, Attend, and Spell (LAS), subsume the acoustic, pronunciation and language model components of a traditional automatic speech recognition (ASR) system into a single neural…