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We summarize the results of a host of efforts using giant automatic speech recognition (ASR) models pre-trained using large, diverse unlabeled datasets containing approximately a million hours of audio. We find that the combination of…

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

While semi-supervised learning (SSL) algorithms provide an efficient way to make use of both labelled and unlabelled data, they generally struggle when the number of annotated samples is very small. In this work, we consider the problem of…

Computer Vision and Pattern Recognition · Computer Science 2020-04-23 Sylvestre-Alvise Rebuffi , Sebastien Ehrhardt , Kai Han , Andrea Vedaldi , Andrew Zisserman

For real-world speech recognition applications, noise robustness is still a challenge. In this work, we adopt the teacher-student (T/S) learning technique using a parallel clean and noisy corpus for improving automatic speech recognition…

Audio and Speech Processing · Electrical Eng. & Systems 2019-03-19 Ladislav Mošner , Minhua Wu , Anirudh Raju , Sree Hari Krishnan Parthasarathi , Kenichi Kumatani , Shiva Sundaram , Roland Maas , Björn Hoffmeister

Self-supervised learning (SSL) has been dramatically successful not only in monolingual but also in cross-lingual settings. However, since the two settings have been studied individually in general, there has been little research focusing…

Computation and Language · Computer Science 2023-05-10 Takanori Ashihara , Takafumi Moriya , Kohei Matsuura , Tomohiro Tanaka

In this work, we study the features extracted by English self-supervised learning (SSL) models in cross-lingual contexts and propose a new metric to predict the quality of feature representations. Using automatic speech recognition (ASR) as…

Computation and Language · Computer Science 2023-11-28 Shuyue Stella Li , Beining Xu , Xiangyu Zhang , Hexin Liu , Wenhan Chao , Leibny Paola Garcia

A typical fluency scoring system generally relies on an automatic speech recognition (ASR) system to obtain time stamps in input speech for either the subsequent calculation of fluency-related features or directly modeling speech fluency…

Audio and Speech Processing · Electrical Eng. & Systems 2023-03-14 Wei Liu , Kaiqi Fu , Xiaohai Tian , Shuju Shi , Wei Li , Zejun Ma , Tan Lee

While supervised quality predictors for synthesized speech have demonstrated strong correlations with human ratings, their requirement for in-domain labeled training data hinders their generalization ability to new domains. Unsupervised…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-08 Erica Cooper , Takuma Okamoto , Yamato Ohtani , Tomoki Toda , Hisashi Kawai

Semi-supervised training (SST) is a common approach to leverage untranscribed/unlabeled speech data to improve automatic speech recognition performance in low-resource languages. However, if the available unlabeled speech is mismatched to…

Computation and Language · Computer Science 2021-06-03 Jayadev Billa

Sign language recognition (SLR) is a machine learning task aiming to identify signs in videos. Due to the scarcity of annotated data, unsupervised methods like contrastive learning have become promising in this field. They learn meaningful…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Ariel Basso Madjoukeng , Jérôme Fink , Pierre Poitier , Edith Belise Kenmogne , Benoit Frenay

Unlabeled data learning has attracted considerable attention recently. However, it is still elusive to extract the expected high-level semantic feature with mere unsupervised learning. In the meantime, semi-supervised learning (SSL)…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Tao Han , Junyu Gao , Yuan Yuan , Qi Wang

While annotating decent amounts of data to satisfy sophisticated learning models can be cost-prohibitive for many real-world applications. Active learning (AL) and semi-supervised learning (SSL) are two effective, but often isolated, means…

Machine Learning · Computer Science 2022-06-08 Jiannan Guo , Yangyang Kang , Yu Duan , Xiaozhong Liu , Siliang Tang , Wenqiao Zhang , Kun Kuang , Changlong Sun , Fei Wu

Self-supervised learning (SSL) methods such as WavLM have shown promising speech separation (SS) results in small-scale simulation-based experiments. In this work, we extend the exploration of the SSL-based SS by massively scaling up both…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-29 Zhuo Chen , Naoyuki Kanda , Jian Wu , Yu Wu , Xiaofei Wang , Takuya Yoshioka , Jinyu Li , Sunit Sivasankaran , Sefik Emre Eskimez

Localizing keypoints of an object is a basic visual problem. However, supervised learning of a keypoint localization network often requires a large amount of data, which is expensive and time-consuming to obtain. To remedy this, there is an…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Can Wang , Sheng Jin , Yingda Guan , Wentao Liu , Chen Qian , Ping Luo , Wanli Ouyang

Self-supervised Transformer based models, such as wav2vec 2.0 and HuBERT, have produced significant improvements over existing approaches to automatic speech recognition (ASR). This is evident in the performance of the wav2vec 2.0 based…

Computation and Language · Computer Science 2022-07-05 Mitchell DeHaven , Jayadev Billa

Speaker representation learning is crucial for voice recognition systems, with recent advances in self-supervised approaches reducing dependency on labeled data. Current two-stage iterative frameworks, while effective, suffer from…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-03 Danwei Cai , Zexin Cai , Ze Li , Ming Li

In the recent years, speech representation learning is constructed primarily as a self-supervised learning (SSL) task, using the raw audio signal alone, while ignoring the side-information that is often available for a given speech…

Sound · Computer Science 2023-09-26 Anjali Raj , Shikhar Bharadwaj , Sriram Ganapathy , Min Ma , Shikhar Vashishth

Spoken language understanding (SLU) is a task aiming to extract high-level semantics from spoken utterances. Previous works have investigated the use of speech self-supervised models and textual pre-trained models, which have shown…

Computation and Language · Computer Science 2022-11-08 Jiatong Shi , Chan-Jan Hsu , Holam Chung , Dongji Gao , Paola Garcia , Shinji Watanabe , Ann Lee , Hung-yi Lee

In our today's information society more and more data emerges, e.g.~in social networks, technical applications, or business applications. Companies try to commercialize these data using data mining or machine learning methods. For this…

Machine Learning · Statistics 2016-10-17 Tobias Reitmaier , Adrian Calma , Bernhard Sick

Emotion recognition models using audio input data can enable the development of interactive systems with applications in mental healthcare, marketing, gaming, and social media analysis. While the field of affective computing using audio…

Sound · Computer Science 2023-07-25 Peranut Nimitsurachat , Peter Washington