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Neural networks trained on distilled data often produce over-confident output and require correction by calibration methods. Existing calibration methods such as temperature scaling and mixup work well for networks trained on original…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Dongyao Zhu , Bowen Lei , Jie Zhang , Yanbo Fang , Ruqi Zhang , Yiqun Xie , Dongkuan Xu

Unsupervised Domain Adaptation (UDA) aims to learn a predictor model for an unlabeled domain by transferring knowledge from a separate labeled source domain. However, most of these conventional UDA approaches make the strong assumption of…

Machine Learning · Computer Science 2021-04-06 Sk Miraj Ahmed , Dripta S. Raychaudhuri , Sujoy Paul , Samet Oymak , Amit K. Roy-Chowdhury

Unsupervised domain adaptation (UDA) deals with the adaptation of models from a given source domain with labeled data to an unlabeled target domain. In this paper, we utilize the inherent prediction uncertainty of a model to accomplish the…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Tobias Ringwald , Rainer Stiefelhagen

Distribution shifts pose significant challenges for model calibration and model selection tasks in the unsupervised domain adaptation problem -- a scenario where the goal is to perform well in a distribution shifted domain without labels.…

Machine Learning · Computer Science 2024-07-18 Taejong Joo , Diego Klabjan

Unsupervised Domain Adaptive Object Detection (UDA-OD) uses unlabelled data to improve the reliability of robotic vision systems in open-world environments. Previous approaches to UDA-OD based on self-training have been effective in…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Nicolas Harvey Chapman , Feras Dayoub , Will Browne , Christopher Lehnert

Minimizing prediction uncertainty on unlabeled data is a key factor to achieve good performance in semi-supervised learning (SSL). The prediction uncertainty is typically expressed as the \emph{entropy} computed by the transformed…

Machine Learning · Computer Science 2021-12-16 Jing Li , Yuangang Pan , Ivor W. Tsang

Person Re-Identification (ReID) across non-overlapping cameras is a challenging task and, for this reason, most works in the prior art rely on supervised feature learning from a labeled dataset to match the same person in different views.…

Computer Vision and Pattern Recognition · Computer Science 2022-02-08 Gabriel Bertocco , Fernanda Andaló , Anderson Rocha

Unsupervised domain adaptation (UDA) aims to transfer the knowledge from the labeled source domain to the unlabeled target domain. Existing self-training based UDA approaches assign pseudo labels for target data and treat them as ground…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Xiaoqing Guo , Chen Yang , Baopu Li , Yixuan Yuan

A probabilistic model is said to be calibrated if its predicted probabilities match the corresponding empirical frequencies. Calibration is important for uncertainty quantification and decision making in safety-critical applications. While…

Machine Learning · Computer Science 2020-07-01 Anusri Pampari , Stefano Ermon

Domain adaptation (DA) aims to transfer knowledge learned from a labeled source domain to an unlabeled or a less labeled but related target domain. Ideally, the source and target distributions should be aligned to each other equally to…

Computer Vision and Pattern Recognition · Computer Science 2022-08-15 Jian Hu , Haowen Zhong , Junchi Yan , Shaogang Gong , Guile Wu , Fei Yang

The performance of automatic speech recognition (ASR) systems typically degrades significantly when the training and test data domains are mismatched. In this paper, we show that self-training (ST) combined with an uncertainty-based…

Computation and Language · Computer Science 2021-02-17 Sameer Khurana , Niko Moritz , Takaaki Hori , Jonathan Le Roux

Unsupervised Domain Adaptation (DA) is used to automatize the task of labeling data: an unlabeled dataset (target) is annotated using a labeled dataset (source) from a related domain. We cast domain adaptation as the problem of finding…

Machine Learning · Statistics 2018-03-22 Twan van Laarhoven , Elena Marchiori

We address the problem of uncertainty calibration. While standard deep neural networks typically yield uncalibrated predictions, calibrated confidence scores that are representative of the true likelihood of a prediction can be achieved…

Machine Learning · Computer Science 2021-06-24 Christian Tomani , Sebastian Gruber , Muhammed Ebrar Erdem , Daniel Cremers , Florian Buettner

Deep Neural Networks have significantly impacted many computer vision tasks. However, their effectiveness diminishes when test data distribution (target domain) deviates from the one of training data (source domain). In situations where…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Andrea Maracani , Lorenzo Rosasco , Lorenzo Natale

Existing deep neural network based salient object detection (SOD) methods mainly focus on pursuing high network accuracy. However, those methods overlook the gap between network accuracy and prediction confidence, known as the confidence…

Computer Vision and Pattern Recognition · Computer Science 2020-12-14 Jing Zhang , Yuchao Dai , Xin Yu , Mehrtash Harandi , Nick Barnes , Richard Hartley

Unsupervised Domain Adaptation (UDA) is essential for adapting machine learning models to new, unlabeled environments where data distribution shifts can degrade performance. Existing UDA algorithms are designed for single-label tasks and…

Artificial Intelligence · Computer Science 2025-11-17 Jihoon Yun , Chengzhang Li , Dhrubojyoti Roy , Anish Arora

Anomaly Detectors are trained on healthy operating condition data and raise an alarm when the measured samples deviate from the training data distribution. This means that the samples used to train the model should be sufficient in quantity…

Machine Learning · Computer Science 2021-02-24 Gabriel Michau , Olga Fink

Unsupervised Graph Domain Adaptation (UGDA) seeks to bridge distribution shifts between domains by transferring knowledge from labeled source graphs to given unlabeled target graphs. Existing UGDA methods primarily focus on aligning…

Machine Learning · Computer Science 2025-01-17 Wei Chen , Guo Ye , Yakun Wang , Zhao Zhang , Libang Zhang , Daixin Wang , Zhiqiang Zhang , Fuzhen Zhuang

In Self-Supervised Learning (SSL), models are typically pretrained, fine-tuned, and evaluated on the same domains. However, they tend to perform poorly when evaluated on unseen domains, a challenge that Unsupervised Domain Generalization…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Marin Scalbert , Maria Vakalopoulou , Florent Couzinié-Devy

Distribution shift between train (source) and test (target) datasets is a common problem encountered in machine learning applications. One approach to resolve this issue is to use the Unsupervised Domain Adaptation (UDA) technique that…