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Related papers: Contrastive Regularization for Accent-Robust ASR

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Automatic delineation of organ-at-risk (OAR) and gross-tumor-volume (GTV) is of great significance for radiotherapy planning. However, it is a challenging task to learn powerful representations for accurate delineation under limited pixel…

Image and Video Processing · Electrical Eng. & Systems 2022-04-21 Jiacheng Wang , Xiaomeng Li , Yiming Han , Jing Qin , Liansheng Wang , Zhou Qichao

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

Dysarthric speech reconstruction is challenging due to its pathological sound patterns. Preserving speaker identity, especially without access to normal speech, is a key challenge. Our proposed approach uses contrastive learning to extract…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-08 Keshvari Fatemeh , Mahdian Toroghi Rahil , Zareian Hassan

Code-switching automatic speech recognition (CS-ASR) presents unique challenges due to language confusion introduced by spontaneous intra-sentence switching and accent bias that blurs the phonetic boundaries. Although the constituent…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-18 Hexin Liu , Haoyang Zhang , Qiquan Zhang , Xiangyu Zhang , Dongyuan Shi , Eng Siong Chng , Haizhou Li

In Automatic Speech Recognition (ASR) systems, a recurring obstacle is the generation of narrowly focused output distributions. This phenomenon emerges as a side effect of Connectionist Temporal Classification (CTC), a robust sequence…

Audio and Speech Processing · Electrical Eng. & Systems 2024-03-19 SooHwan Eom , Eunseop Yoon , Hee Suk Yoon , Chanwoo Kim , Mark Hasegawa-Johnson , Chang D. Yoo

Contrastive loss has significantly improved performance in supervised classification tasks by using a multi-viewed framework that leverages augmentation and label information. The augmentation enables contrast with another view of a single…

Machine Learning · Computer Science 2022-11-28 Sangmin Bae , Sungnyun Kim , Jongwoo Ko , Gihun Lee , Seungjong Noh , Se-Young Yun

The global reach of social media has amplified the spread of hateful content, including implicit sexism, which is often overlooked by conventional detection methods. In this work, we introduce an Adaptive Supervised Contrastive lEarning…

Computation and Language · Computer Science 2025-07-09 Mohammad Zia Ur Rehman , Aditya Shah , Nagendra Kumar

Accent variability has posed a huge challenge to automatic speech recognition~(ASR) modeling. Although one-hot accent vector based adaptation systems are commonly used, they require prior knowledge about the target accent and cannot handle…

Sound · Computer Science 2022-04-22 Xun Gong , Yizhou Lu , Zhikai Zhou , Yanmin Qian

Error correction in automatic speech recognition (ASR) aims to correct those incorrect words in sentences generated by ASR models. Since recent ASR models usually have low word error rate (WER), to avoid affecting originally correct tokens,…

Computation and Language · Computer Science 2023-12-21 Yichong Leng , Xu Tan , Wenjie Liu , Kaitao Song , Rui Wang , Xiang-Yang Li , Tao Qin , Edward Lin , Tie-Yan Liu

Self-supervised visual pretraining has shown significant progress recently. Among those methods, SimCLR greatly advanced the state of the art in self-supervised and semi-supervised learning on ImageNet. The input feature representations for…

Computation and Language · Computer Science 2021-07-06 Dongwei Jiang , Wubo Li , Miao Cao , Wei Zou , Xiangang Li

Contrastive learning has recently achieved compelling performance in unsupervised sentence representation. As an essential element, data augmentation protocols, however, have not been well explored. The pioneering work SimCSE resorting to a…

Computation and Language · Computer Science 2024-06-17 Dongsheng Zhu , Zhenyu Mao , Jinghui Lu , Rui Zhao , Fei Tan

Self-supervised learning (SSL)-based speech models are extensively used for full-stack speech processing. However, it has been observed that improving SSL-based speech representations using unlabeled speech for content-related tasks is…

Computation and Language · Computer Science 2024-06-14 Amit Meghanani , Thomas Hain

The information noise-contrastive estimation (InfoNCE) loss function provides the basis of many self-supervised deep learning methods due to its strong empirical results and theoretic motivation. Previous work suggests a supervised…

Computer Vision and Pattern Recognition · Computer Science 2024-11-11 Patrick Feeney , Michael C. Hughes

In contrastive self-supervised learning, the common way to learn discriminative representation is to pull different augmented "views" of the same image closer while pushing all other images further apart, which has been proven to be…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Kaiyou Song , Shan Zhang , Zihao An , Zimeng Luo , Tong Wang , Jin Xie

In open-domain Question Answering (QA), dense retrieval is crucial for finding relevant passages for answer generation. Typically, contrastive learning is used to train a retrieval model that maps passages and queries to the same semantic…

Computation and Language · Computer Science 2024-01-17 Shiqi Wang , Yeqin Zhang , Cam-Tu Nguyen

We present a contrasting learning approach with data augmentation techniques to learn document representations in an unsupervised manner. Inspired by recent contrastive self-supervised learning algorithms used for image and NLP pretraining,…

Computation and Language · Computer Science 2021-03-29 Dongsheng Luo , Wei Cheng , Jingchao Ni , Wenchao Yu , Xuchao Zhang , Bo Zong , Yanchi Liu , Zhengzhang Chen , Dongjin Song , Haifeng Chen , Xiang Zhang

Recently, contrastive learning has risen to be a promising approach for large-scale self-supervised learning. However, theoretical understanding of how it works is still unclear. In this paper, we propose a new guarantee on the downstream…

Machine Learning · Computer Science 2022-05-30 Yifei Wang , Qi Zhang , Yisen Wang , Jiansheng Yang , Zhouchen Lin

In this study, we proposed a novel semi-supervised training method that uses unlabeled data with a class distribution that is completely different from the target data or data without a target label. To this end, we introduce a contrastive…

Sound · Computer Science 2021-09-30 Donmoon Lee , Kyogu Lee

For real-world deployment of automatic speech recognition (ASR), the system is desired to be capable of fast inference while relieving the requirement of computational resources. The recently proposed end-to-end ASR system based on…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-17 Yosuke Higuchi , Hirofumi Inaguma , Shinji Watanabe , Tetsuji Ogawa , Tetsunori Kobayashi

Connectionist Temporal Classification (CTC) is a widely used approach for automatic speech recognition (ASR) that performs conditionally independent monotonic alignment. However for translation, CTC exhibits clear limitations due to the…

Computation and Language · Computer Science 2022-10-12 Brian Yan , Siddharth Dalmia , Yosuke Higuchi , Graham Neubig , Florian Metze , Alan W Black , Shinji Watanabe