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Deep learning technologies have significantly advanced the performance of target speaker extraction (TSE) tasks. To enhance the generalization and robustness of these algorithms when training data is insufficient, data augmentation is a…

Sound · Computer Science 2024-09-17 Junjie Li , Ke Zhang , Shuai Wang , Haizhou Li , Man-Wai Mak , Kong Aik Lee

Neural network based speech recognition systems suffer from performance degradation due to accented speech, especially unfamiliar accents. In this paper, we study the supervised contrastive learning framework for accented speech…

Sound · Computer Science 2021-07-05 Tao Han , Hantao Huang , Ziang Yang , Wei Han

In this work, we present Con$^{2}$DA, a simple framework that extends recent advances in semi-supervised learning to the semi-supervised domain adaptation (SSDA) problem. Our framework generates pairs of associated samples by performing…

Machine Learning · Computer Science 2023-08-14 Manuel Pérez-Carrasco , Pavlos Protopapas , Guillermo Cabrera-Vives

Data augmentation (DA) is crucial to mitigate model training instability and over-fitting problems in low-resource open-domain dialogue generation. However, traditional DA methods often neglect semantic data diversity, restricting the…

Computation and Language · Computer Science 2024-04-02 Zhenhua Liu , Tong Zhu , Jianxiang Xiang , Wenliang Chen

In computer vision, contrastive learning is the most advanced unsupervised learning framework. Yet most previous methods simply apply fixed composition of data augmentations to improve data efficiency, which ignores the changes in their…

Computer Vision and Pattern Recognition · Computer Science 2023-04-20 Yuhan Zhang , He Zhu , Shan Yu

Rationales, snippets of extracted text that explain an inference, have emerged as a popular framework for interpretable natural language processing (NLP). Rationale models typically consist of two cooperating modules: a selector and a…

Computation and Language · Computer Science 2022-01-17 Mitchell Plyler , Michael Green , Min Chi

This paper proposes AEDA (An Easier Data Augmentation) technique to help improve the performance on text classification tasks. AEDA includes only random insertion of punctuation marks into the original text. This is an easier technique to…

Computation and Language · Computer Science 2021-08-31 Akbar Karimi , Leonardo Rossi , Andrea Prati

Data augmentation (DA) has gained widespread popularity in deep speaker models due to its ease of implementation and significant effectiveness. It enriches training data by simulating real-life acoustic variations, enabling deep neural…

Sound · Computer Science 2024-02-07 Zhenyu Zhou , Junhui Chen , Namin Wang , Lantian Li , Dong Wang

In sequential recommendation systems, data augmentation and contrastive learning techniques have recently been introduced using diffusion models to achieve robust representation learning. However, most of the existing approaches use random…

Information Retrieval · Computer Science 2025-07-17 Jinkyeong Choi , Yejin Noh , Donghyeon Park

Data augmentation is vital for deep learning neural networks. By providing massive training samples, it helps to improve the generalization ability of the model. Weakly supervised semantic segmentation (WSSS) is a challenging problem that…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Yukun Su , Ruizhou Sun , Guosheng Lin , Qingyao Wu

We propose reCSE, a self supervised contrastive learning sentence representation framework based on feature reshaping. This framework is different from the current advanced models that use discrete data augmentation methods, but instead…

Computation and Language · Computer Science 2024-08-27 Fufangchen Zhao , Jian Gao , Danfeng Yan

Most sentence embedding techniques heavily rely on expensive human-annotated sentence pairs as the supervised signals. Despite the use of large-scale unlabeled data, the performance of unsupervised methods typically lags far behind that of…

Computation and Language · Computer Science 2022-11-01 Yiming Chen , Yan Zhang , Bin Wang , Zuozhu Liu , Haizhou Li

Self-supervised learning (SSL) has potential for effective representation learning in medical imaging, but the choice of data augmentation is critical and domain-specific. It remains uncertain if general augmentation policies suit surgical…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Yuning Zhou , Henry Badgery , Matthew Read , James Bailey , Catherine E. Davey

In this paper, we propose a novel implicit semantic data augmentation (ISDA) approach to complement traditional augmentation techniques like flipping, translation or rotation. Our work is motivated by the intriguing property that deep…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Yulin Wang , Xuran Pan , Shiji Song , Hong Zhang , Cheng Wu , Gao Huang

As an essential branch of recommender systems, sequential recommendation (SR) has received much attention due to its well-consistency with real-world situations. However, the widespread data sparsity issue limits the SR model's performance.…

Information Retrieval · Computer Science 2024-09-23 Yizhou Dang , Enneng Yang , Yuting Liu , Guibing Guo , Linying Jiang , Jianzhe Zhao , Xingwei Wang

Unsupervised Data Augmentation (UDA) is a semi-supervised technique that applies a consistency loss to penalize differences between a model's predictions on (a) observed (unlabeled) examples; and (b) corresponding 'noised' examples produced…

Computation and Language · Computer Science 2020-10-26 David Lowell , Brian E. Howard , Zachary C. Lipton , Byron C. Wallace

Contrastive learning has been attracting much attention for learning unsupervised sentence embeddings. The current state-of-the-art unsupervised method is the unsupervised SimCSE (unsup-SimCSE). Unsup-SimCSE takes dropout as a minimal data…

Computation and Language · Computer Science 2022-09-13 Xing Wu , Chaochen Gao , Liangjun Zang , Jizhong Han , Zhongyuan Wang , Songlin Hu

Sequential recommender systems (SRS) are designed to predict users' future behaviors based on their historical interaction data. Recent research has increasingly utilized contrastive learning (CL) to leverage unsupervised signals to…

Information Retrieval · Computer Science 2024-03-19 Peilin Zhou , You-Liang Huang , Yueqi Xie , Jingqi Gao , Shoujin Wang , Jae Boum Kim , Sunghun Kim

Data augmentation (DA) has played a pivotal role in the success of deep speaker recognition. Current DA techniques primarily focus on speaker-preserving augmentation, which does not change the speaker trait of the speech and does not create…

Sound · Computer Science 2024-06-12 Zhenyu Zhou , Shibiao Xu , Shi Yin , Lantian Li , Dong Wang

Contrastive learning-based methods, such as unsup-SimCSE, have achieved state-of-the-art (SOTA) performances in learning unsupervised sentence embeddings. However, in previous studies, each embedding used for contrastive learning only…

Computation and Language · Computer Science 2023-05-19 Hongliang He , Junlei Zhang , Zhenzhong Lan , Yue Zhang