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Related papers: Contrast-PLC: Contrastive Learning for Packet Loss…

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As deep speech enhancement algorithms have recently demonstrated capabilities greatly surpassing their traditional counterparts for suppressing noise, reverberation and echo, attention is turning to the problem of packet loss concealment…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-13 Jean-Marc Valin , Ahmed Mustafa , Christopher Montgomery , Timothy B. Terriberry , Michael Klingbeil , Paris Smaragdis , Arvindh Krishnaswamy

Packet loss is a common problem in data transmission, including speech data transmission. This may affect a wide range of applications that stream audio data, like streaming applications or speech emotion recognition (SER). Packet Loss…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-19 Mostafa M. Mohamed , Björn W. Schuller

This paper introduces a real-time time-domain packet loss concealment (PLC) neural-network (tPLCnet). It efficiently predicts lost frames from a short context buffer in a sequence-to-one (seq2one) fashion. Because of its seq2one structure,…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-05 Nils L. Westhausen , Bernd T. Meyer

Real-time communications in packet-switched networks have become widely used in daily communication, while they inevitably suffer from network delays and data losses in constrained real-time conditions. To solve these problems, audio packet…

Sound · Computer Science 2022-07-05 Yuansheng Guan , Guochen Yu , Andong Li , Chengshi Zheng , Jie Wang

Packet-loss is a common problem in data transmission, using Voice over IP. The problem is an old problem, and there has been a variety of classical approaches that were developed to overcome this problem. However, with the rise of deep…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-19 Mostafa M. Mohamed , Mina A. Nessiem , Björn W. Schuller

Packet loss concealment (PLC) is a tool for enhancing speech degradation caused by poor network conditions or underflow/overflow in audio processing pipelines. We propose a real-time recurrent method that leverages previous outputs to…

Sound · Computer Science 2023-05-15 Viet-Anh Nguyen , Anh H. T. Nguyen , Andy W. H. Khong

This paper presents Prototypical Contrastive Learning (PCL), an unsupervised representation learning method that addresses the fundamental limitations of instance-wise contrastive learning. PCL not only learns low-level features for the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Junnan Li , Pan Zhou , Caiming Xiong , Steven C. H. Hoi

Communication technologies like voice over IP operate under constrained real-time conditions, with voice packets being subject to delays and losses from the network. In such cases, the packet loss concealment (PLC) algorithm reconstructs…

Sound · Computer Science 2021-07-09 Santiago Pascual , Joan Serrà , Jordi Pons

Deep neural networks (DNNs) have achieved remarkable success in computer vision tasks such as image classification, segmentation, and object detection. However, they are vulnerable to adversarial attacks, which can cause incorrect…

Computer Vision and Pattern Recognition · Computer Science 2025-11-03 Suklav Ghosh , Sonal Kumar , Arijit Sur

The success of deep learning heavily depends on the availability of large labeled training sets. However, it is hard to get large labeled datasets in medical image domain because of the strict privacy concern and costly labeling efforts.…

Computer Vision and Pattern Recognition · Computer Science 2021-09-30 Dewen Zeng , Yawen Wu , Xinrong Hu , Xiaowei Xu , Haiyun Yuan , Meiping Huang , Jian Zhuang , Jingtong Hu , Yiyu Shi

Convolutional neural networks (CNNs) have achieved state-of-the-art performance on various tasks in computer vision. However, recent studies demonstrate that these models are vulnerable to carefully crafted adversarial samples and suffer…

Machine Learning · Computer Science 2020-12-15 Xin Li , Xiangrui Li , Deng Pan , Dongxiao Zhu

Contrastive learning has recently emerged as a promising approach for learning data representations that discover and disentangle the explanatory factors of the data. Previous analyses of such approaches have largely focused on individual…

Machine Learning · Computer Science 2023-11-09 Stefan Matthes , Zhiwei Han , Hao Shen

We investigate the possibility of forcing a self-supervised model trained using a contrastive predictive loss to extract slowly varying latent representations. Rather than producing individual predictions for each of the future…

The contextual information is critical for various computer vision tasks, previous works commonly design plug-and-play modules and structural losses to effectively extract and aggregate the global context. These methods utilize fine-label…

Computer Vision and Pattern Recognition · Computer Science 2023-02-24 Jing Wang , Jiangyun Li , Wei Li , Lingfei Xuan , Tianxiang Zhang , Wenxuan Wang

Collecting labeled data for the task of semantic segmentation is expensive and time-consuming, as it requires dense pixel-level annotations. While recent Convolutional Neural Network (CNN) based semantic segmentation approaches have…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Xiangyun Zhao , Raviteja Vemulapalli , Philip Mansfield , Boqing Gong , Bradley Green , Lior Shapira , Ying Wu

To extract robust deep representations from long sequential modeling of speech data, we propose a self-supervised learning approach, namely Contrastive Separative Coding (CSC). Our key finding is to learn such representations by separating…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-02 Jun Wang , Max W. Y. Lam , Dan Su , Dong Yu

Recently, contrastive learning has been shown to be effective in improving pre-trained language models (PLM) to derive high-quality sentence representations. It aims to pull close positive examples to enhance the alignment while push apart…

Computation and Language · Computer Science 2022-05-03 Kun Zhou , Beichen Zhang , Wayne Xin Zhao , Ji-Rong Wen

In this paper, we propose the Generalized Parametric Contrastive Learning (GPaCo/PaCo) which works well on both imbalanced and balanced data. Based on theoretical analysis, we observe that supervised contrastive loss tends to bias…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Jiequan Cui , Zhisheng Zhong , Zhuotao Tian , Shu Liu , Bei Yu , Jiaya Jia

A great challenge in speaker representation learning using deep models is to design learning objectives that can enhance the discrimination of unseen speakers under unseen domains. This work proposes a supervised contrastive learning…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-18 Zhe Li , Man-Wai Mak

Learning discriminative image representations plays a vital role in long-tailed image classification because it can ease the classifier learning in imbalanced cases. Given the promising performance contrastive learning has shown recently in…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Peng Wang , Kai Han , Xiu-Shen Wei , Lei Zhang , Lei Wang
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