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Semi-supervised learning has demonstrated promising results in automatic speech recognition (ASR) by self-training using a seed ASR model with pseudo-labels generated for unlabeled data. The effectiveness of this approach largely relies on…

Machine Learning · Computer Science 2021-02-17 Niko Moritz , Takaaki Hori , Jonathan Le Roux

Semi-supervised learning (SSL) has achieved great success in leveraging a large amount of unlabeled data to learn a promising classifier. A popular approach is pseudo-labeling that generates pseudo labels only for those unlabeled data with…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Qinyi Deng , Yong Guo , Zhibang Yang , Haolin Pan , Jian Chen

Fine-tuning a pre-trained language model via the contrastive learning framework with a large amount of unlabeled sentences or labeled sentence pairs is a common way to obtain high-quality sentence representations. Although the contrastive…

Computation and Language · Computer Science 2022-11-01 Tianduo Wang , Wei Lu

We present a novel technique for self-supervised video representation learning by: (a) decoupling the learning objective into two contrastive subtasks respectively emphasizing spatial and temporal features, and (b) performing it…

Computer Vision and Pattern Recognition · Computer Science 2021-09-02 Zehua Zhang , David Crandall

In step with the digitalization of transportation, we are witnessing a growing range of path-based smart-city applications, e.g., travel-time estimation and travel path ranking. A temporal path(TP) that includes temporal information, e.g.,…

Machine Learning · Computer Science 2022-04-18 Sean Bin Yang , Chenjuan Guo , Jilin Hu , Bin Yang , Jian Tang , Christian S. Jensen

Semi-supervised learning (SSL) has been a powerful strategy to incorporate few labels in learning better representations. In this paper, we focus on a practical scenario that one aims to apply SSL when unlabeled data may contain…

Computer Vision and Pattern Recognition · Computer Science 2022-08-22 Jongjin Park , Sukmin Yun , Jongheon Jeong , Jinwoo Shin

Recent advances in self-supervised learning with instance-level contrastive objectives facilitate unsupervised clustering. However, a standalone datum is not perceiving the context of the holistic cluster, and may undergo sub-optimal…

Computer Vision and Pattern Recognition · Computer Science 2022-01-24 Yuming Shen , Ziyi Shen , Menghan Wang , Jie Qin , Philip H. S. Torr , Ling Shao

Unsupervised domain adaptation (UDA) aims at learning a machine learning model using a labeled source domain that performs well on a similar yet different, unlabeled target domain. UDA is important in many applications such as medicine,…

Machine Learning · Computer Science 2023-02-08 Yilmazcan Ozyurt , Stefan Feuerriegel , Ce Zhang

In this paper, we present a simple and efficient method for training deep neural networks in a semi-supervised setting where only a small portion of training data is labeled. We introduce self-ensembling, where we form a consensus…

Neural and Evolutionary Computing · Computer Science 2017-03-16 Samuli Laine , Timo Aila

The supervised learning paradigm is limited by the cost - and sometimes the impracticality - of data collection and labeling in multiple domains. Self-supervised learning, a paradigm which exploits the structure of unlabeled data to create…

In computational pathology, we often face a scarcity of annotations and a large amount of unlabeled data. One method for dealing with this is semi-supervised learning which is commonly split into a self-supervised pretext task and a…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Manuel Tran , Sophia J. Wagner , Melanie Boxberg , Tingying Peng

Efficiently capturing the complex spatiotemporal representations from large-scale unlabeled traffic data remains to be a challenging task. In considering of the dilemma, this work employs the advanced contrastive learning and proposes a…

Machine Learning · Computer Science 2023-12-19 Lincan Li , Kaixiang Yang , Fengji Luo , Jichao Bi

Recent advances in supervised deep learning methods are enabling remote measurements of photoplethysmography-based physiological signals using facial videos. The performance of these supervised methods, however, are dependent on the…

Computer Vision and Pattern Recognition · Computer Science 2021-12-15 Hao Wang , Euijoon Ahn , Jinman Kim

Improving generalization is a major challenge in audio classification due to labeled data scarcity. Self-supervised learning (SSL) methods tackle this by leveraging unlabeled data to learn useful features for downstream classification…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-22 Melikasadat Emami , Dung Tran , Kazuhito Koishida

To improve performance in visual feature representation from photos or videos for practical applications, we generally require large-scale human-annotated labeled data while training deep neural networks. However, the cost of gathering and…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Zhenyuan Lu

Leveraging temporal information has been regarded as essential for developing video understanding models. However, how to properly incorporate temporal information into the recent successful instance discrimination based contrastive…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Yutong Bai , Haoqi Fan , Ishan Misra , Ganesh Venkatesh , Yongyi Lu , Yuyin Zhou , Qihang Yu , Vikas Chandra , Alan Yuille

Semi-supervised learning is attracting blooming attention, due to its success in combining unlabeled data. However, pseudo-labeling-based semi-supervised approaches suffer from two problems in image classification: (1) Existing methods…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Xuerong Zhang , Li Huang , Jing Lv , Ming Yang

Biologically inspired spiking neural networks (SNNs) have garnered considerable attention due to their low-energy consumption and spatio-temporal information processing capabilities. Most existing SNNs training methods first integrate…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Haonan Qiu , Zeyin Song , Yanqi Chen , Munan Ning , Wei Fang , Tao Sun , Zhengyu Ma , Li Yuan , Yonghong Tian

Contrastive pretraining techniques for text classification has been largely studied in an unsupervised setting. However, oftentimes labeled data from related tasks which share label semantics with current task is available. We hypothesize…

Computation and Language · Computer Science 2021-12-22 Samujjwal Ghosh , Subhadeep Maji , Maunendra Sankar Desarkar

Learning robust representations to discriminate cell phenotypes based on microscopy images is important for drug discovery. Drug development efforts typically analyse thousands of cell images to screen for potential treatments. Early works…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Alexis Perakis , Ali Gorji , Samriddhi Jain , Krishna Chaitanya , Simone Rizza , Ender Konukoglu