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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

Self-Supervised Learning (SSL) enables us to pre-train foundation models without costly labeled data. Among SSL methods, Contrastive Learning (CL) methods are better at obtaining accurate semantic representations in noise interference.…

Image and Video Processing · Electrical Eng. & Systems 2026-02-06 Hengtong Shen , Haiyan Gu , Haitao Li , Yi Yang , Agen Qiu

Adversarial attacks exploit the vulnerabilities of convolutional neural networks by introducing imperceptible perturbations that lead to misclassifications, exposing weaknesses in feature representations and decision boundaries. This paper…

Machine Learning · Computer Science 2024-12-30 Longwei Wang , Navid Nayyem , Abdullah Rakin

This paper presents an end-to-end text-independent speaker verification framework by jointly considering the speaker embedding (SE) network and automatic speech recognition (ASR) network. The SE network learns to output an embedding vector…

Audio and Speech Processing · Electrical Eng. & Systems 2019-08-08 Sungrack Yun , Janghoon Cho , Jungyun Eum , Wonil Chang , Kyuwoong Hwang

Better disentanglement of speech representation is essential to improve the quality of voice conversion. Recently contrastive learning is applied to voice conversion successfully based on speaker labels. However, the performance of model…

Sound · Computer Science 2023-11-16 Yimin Deng , Xulong Zhang , Jianzong Wang , Ning Cheng , Jing Xiao

Unsupervised representation learning has shown remarkable achievement by reducing the performance gap with supervised feature learning, especially in the image domain. In this study, to extend the technique of unsupervised learning to the…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-23 Jangho Lee , Jaihyun Koh , Sungroh Yoon

Systems based on automatic speech recognition (ASR) technology can provide important functionality in computer assisted language learning applications. This is a young but growing area of research motivated by the large number of students…

Sound · Computer Science 2016-02-29 Zhenhao Ge , Sudhendu R. Sharma , Mark J. T. Smith

State-of-the-art speaker verification systems are inherently dependent on some kind of human supervision as they are trained on massive amounts of labeled data. However, manually annotating utterances is slow, expensive and not scalable to…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-25 Théo Lepage , Réda Dehak

Multi-party dialogue generation presents significant challenges due to the complex interplay of multiple speakers and interwoven conversational threads. Traditional approaches often fall short in capturing these complexities, particularly…

Computation and Language · Computer Science 2025-03-13 Tianyu Sun , Kun Qian , Wenhong Wang

Extracting generalized and robust representations is a major challenge in emotion recognition in conversations (ERC). To address this, we propose a supervised adversarial contrastive learning (SACL) framework for learning class-spread…

Computation and Language · Computer Science 2023-07-11 Dou Hu , Yinan Bao , Lingwei Wei , Wei Zhou , Songlin Hu

Large language models (LLMs) excel in natural language processing but adapting these LLMs to speech processing tasks efficiently is not straightforward. Direct task-specific fine-tuning is limited by overfitting risks, data requirements,…

Computation and Language · Computer Science 2025-06-02 Maike Züfle , Jan Niehues

Contrastive learning has emerged as an essential approach for self-supervised learning in visual representation learning. The central objective of contrastive learning is to maximize the similarities between two augmented versions of an…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Hengkui Dong , Xianzhong Long , Yun Li , Lei Chen

Contrastive learning (CL) is one of the most successful paradigms for self-supervised learning (SSL). In a principled way, it considers two augmented "views" of the same image as positive to be pulled closer, and all other images as…

Machine Learning · Computer Science 2023-06-21 Chun-Hsiao Yeh , Cheng-Yao Hong , Yen-Chi Hsu , Tyng-Luh Liu , Yubei Chen , Yann LeCun

Code-switching (CS) refers to the switching of languages within a speech signal and results in language confusion for automatic speech recognition (ASR). To address language confusion, we propose a language alignment loss (LAL) that aligns…

Audio and Speech Processing · Electrical Eng. & Systems 2025-11-04 Hexin Liu , Xiangyu Zhang , Haoyang Zhang , Leibny Paola Garcia , Andy W. H. Khong , Eng Siong Chng , Shinji Watanabe

We introduce Condition-Aware Self-Supervised Learning Representation (CA-SSLR), a generalist conditioning model broadly applicable to various speech-processing tasks. Compared to standard fine-tuning methods that optimize for downstream…

Audio and Speech Processing · Electrical Eng. & Systems 2024-12-06 Yen-Ju Lu , Jing Liu , Thomas Thebaud , Laureano Moro-Velazquez , Ariya Rastrow , Najim Dehak , Jesus Villalba

Fine-tuning pre-trained language models (PLMs) has demonstrated its effectiveness on various downstream NLP tasks recently. However, in many low-resource scenarios, the conventional fine-tuning strategies cannot sufficiently capture the…

Computation and Language · Computer Science 2021-11-15 Yusheng Su , Xu Han , Yankai Lin , Zhengyan Zhang , Zhiyuan Liu , Peng Li , Jie Zhou , Maosong Sun

Large Language Models (LLMs) are powerful tools with profound societal impacts, yet their ability to generate responses to diverse and uncontrolled inputs leaves them vulnerable to adversarial attacks. While existing defenses often struggle…

Computation and Language · Computer Science 2025-12-30 Samuel Simko , Mrinmaya Sachan , Bernhard Schölkopf , Zhijing Jin

Automatic speaker verification (ASV) technology is recently finding its way to end-user applications for secure access to personal data, smart services or physical facilities. Similar to other biometric technologies, speaker verification is…

Sound · Computer Science 2016-09-16 Cemal Hanilci , Tomi Kinnunen , Md Sahidullah , Aleksandr Sizov

We are interested in representation learning from labeled or unlabeled data. Inspired by recent success of self-supervised learning (SSL), we develop a non-contrastive representation learning method that can exploit additional knowledge.…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Ajinkya Tejankar , Soroush Abbasi Koohpayegani , Hamed Pirsiavash

This paper studies learning fair encoders in a self-supervised learning (SSL) setting, in which all data are unlabeled and only a small portion of them are annotated with sensitive attribute. Adversarial fair representation learning is well…

Machine Learning · Computer Science 2024-06-11 Qi Qi , Quanqi Hu , Qihang Lin , Tianbao Yang