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Pseudo-label based self training approaches are a popular method for source-free unsupervised domain adaptation. However, their efficacy depends on the quality of the labels generated by the source trained model. These labels may be…

计算机视觉与模式识别 · 计算机科学 2021-10-01 Deepti Hegde , Vishwanath Sindagi , Velat Kilic , A. Brinton Cooper , Mark Foster , Vishal Patel

The unsupervised pretraining of object detectors has recently become a key component of object detector training, as it leads to improved performance and faster convergence during the supervised fine-tuning stage. Existing unsupervised…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Ioannis Maniadis Metaxas , Adrian Bulat , Ioannis Patras , Brais Martinez , Georgios Tzimiropoulos

Semi-supervised learning has the potential to improve the data-efficiency of training data-hungry deep neural networks, which is especially important for medical image analysis tasks where labeled data is scarce. In this work, we present a…

计算机视觉与模式识别 · 计算机科学 2022-10-04 Boon Peng Yap , Beng Koon Ng

Semi-supervised learning lately has shown much promise in improving deep learning models when labeled data is scarce. Common among recent approaches is the use of consistency training on a large amount of unlabeled data to constrain model…

机器学习 · 计算机科学 2020-11-06 Qizhe Xie , Zihang Dai , Eduard Hovy , Minh-Thang Luong , Quoc V. Le

We tackle the problem of semantic boundary prediction, which aims to identify pixels that belong to object(class) boundaries. We notice that relevant datasets consist of a significant level of label noise, reflecting the fact that precise…

计算机视觉与模式识别 · 计算机科学 2019-06-11 David Acuna , Amlan Kar , Sanja Fidler

In this work, we introduce LEAD, an approach to discover landmarks from an unannotated collection of category-specific images. Existing works in self-supervised landmark detection are based on learning dense (pixel-level) feature…

计算机视觉与模式识别 · 计算机科学 2022-04-07 Tejan Karmali , Abhinav Atrishi , Sai Sree Harsha , Susmit Agrawal , Varun Jampani , R. Venkatesh Babu

Self-supervised learning, which learns by constructing artificial labels given only the input signals, has recently gained considerable attention for learning representations with unlabeled datasets, i.e., learning without any…

机器学习 · 计算机科学 2020-06-30 Hankook Lee , Sung Ju Hwang , Jinwoo Shin

Self-training is a powerful approach to deep learning. The key process is to find a pseudo-label for modeling. However, previous self-training algorithms suffer from the over-confidence issue brought by the hard labels, even some…

计算机视觉与模式识别 · 计算机科学 2024-05-03 Zijia Wang , Wenbin Yang , Zhisong Liu , Zhen Jia

Semi-supervised algorithms aim to learn prediction functions from a small set of labeled observations and a large set of unlabeled observations. Because this framework is relevant in many applications, they have received a lot of interest…

机器学习 · 计算机科学 2025-02-17 Massih-Reza Amini , Vasilii Feofanov , Loic Pauletto , Lies Hadjadj , Emilie Devijver , Yury Maximov

Regularization is an effective way to promote the generalization performance of machine learning models. In this paper, we focus on label smoothing, a form of output distribution regularization that prevents overfitting of a neural network…

机器学习 · 计算机科学 2020-07-07 Weizhi Li , Gautam Dasarathy , Visar Berisha

Monocular Depth Estimation (MDE) is a fundamental problem in computer vision with numerous applications. Recently, LIDAR-supervised methods have achieved remarkable per-pixel depth accuracy in outdoor scenes. However, significant errors are…

计算机视觉与模式识别 · 计算机科学 2024-04-04 Lior Talker , Aviad Cohen , Erez Yosef , Alexandra Dana , Michael Dinerstein

We focus on a specific use case in anomaly detection where the distribution of normal samples is supported by a lower-dimensional manifold. Here, regularized autoencoders provide a popular approach by learning the identity mapping on the…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Alexander Bauer , Shinichi Nakajima , Klaus-Robert Müller

Supervised machine learning provides state-of-the-art solutions to a wide range of computer vision problems. However, the need for copious labelled training data limits the capabilities of these algorithms in scenarios where such input is…

计算机视觉与模式识别 · 计算机科学 2022-09-02 András Kalapos , Bálint Gyires-Tóth

In this work, we propose a simple yet effective meta-learning algorithm in semi-supervised learning. We notice that most existing consistency-based approaches suffer from overfitting and limited model generalization ability, especially when…

机器学习 · 计算机科学 2021-03-18 Xin-Yu Zhang , Taihong Xiao , Haolin Jia , Ming-Ming Cheng , Ming-Hsuan Yang

In deep neural nets, lower level embedding layers account for a large portion of the total number of parameters. Tikhonov regularization, graph-based regularization, and hard parameter sharing are approaches that introduce explicit biases…

机器学习 · 计算机科学 2020-10-06 Liwei Wu , Shuqing Li , Cho-Jui Hsieh , James Sharpnack

We present a novel self-taught framework for unsupervised metric learning, which alternates between predicting class-equivalence relations between data through a moving average of an embedding model and learning the model with the predicted…

计算机视觉与模式识别 · 计算机科学 2022-05-05 Sungyeon Kim , Dongwon Kim , Minsu Cho , Suha Kwak

Consistency regularization is a commonly-used technique for semi-supervised and self-supervised learning. It is an auxiliary objective function that encourages the prediction of the network to be similar in the vicinity of the observed…

机器学习 · 计算机科学 2021-10-05 Erik Englesson , Hossein Azizpour

A recently-proposed technique called self-adaptive training augments modern neural networks by allowing them to adjust training labels on the fly, to avoid overfitting to samples that may be mislabeled or otherwise non-representative. By…

机器学习 · 计算机科学 2020-06-16 Daniel Chiu , Franklyn Wang , Scott Duke Kominers

We propose a semi-supervised text classifier based on self-training using one positive and one negative property of neural networks. One of the weaknesses of self-training is the semantic drift problem, where noisy pseudo-labels accumulate…

计算与语言 · 计算机科学 2024-01-02 Payam Karisani

Recent advances in semi-supervised learning (SSL) demonstrate that a combination of consistency regularization and pseudo-labeling can effectively improve image classification accuracy in the low-data regime. Compared to classification,…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Yuliang Zou , Zizhao Zhang , Han Zhang , Chun-Liang Li , Xiao Bian , Jia-Bin Huang , Tomas Pfister