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This paper investigates test-time adaptation (TTA) for regression, where a regression model pre-trained in a source domain is adapted to an unknown target distribution with unlabeled target data. Although regression is one of the…

Machine Learning · Computer Science 2025-01-24 Kazuki Adachi , Shin'ya Yamaguchi , Atsutoshi Kumagai , Tomoki Hamagami

In self-supervised learning, a model is trained to solve a pretext task, using a data set whose annotations are created by a machine. The objective is to transfer the trained weights to perform a downstream task in the target domain. We…

Machine Learning · Computer Science 2021-10-22 Prathamesh Sonawane , Sparsh Drolia , Saqib Shamsi , Bhargav Jain

Conventional supervised super-resolution (SR) approaches are trained with massive external SR datasets but fail to exploit desirable properties of the given test image. On the other hand, self-supervised SR approaches utilize the internal…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Seobin Park , Jinsu Yoo , Donghyeon Cho , Jiwon Kim , Tae Hyun Kim

As supervised learning still dominates most AI applications, test-time performance is often unexpected. Specifically, a shift of the input covariates, caused by typical nuisances like background-noise, illumination variations or…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Tomer Cohen , Noy Shulman , Hai Morgenstern , Roey Mechrez , Erez Farhan

Turn-level user satisfaction is one of the most important performance metrics for conversational agents. It can be used to monitor the agent's performance and provide insights about defective user experiences. Moreover, a powerful…

Machine Learning · Computer Science 2021-04-13 Mohammad Kachuee , Hao Yuan , Young-Bum Kim , Sungjin Lee

Test-time adaptation (TTA) is an effective approach to mitigate performance degradation of trained models when encountering input distribution shifts at test time. However, existing TTA methods often suffer significant performance drops…

Machine Learning · Computer Science 2025-02-06 Minguk Jang , Hye Won Chung

Recent years have witnessed an abundance of new publications and approaches on meta-learning. This community-wide enthusiasm has sparked great insights but has also created a plethora of seemingly different frameworks, which can be hard to…

Machine Learning · Computer Science 2020-02-04 Wei-Lun Chao , Han-Jia Ye , De-Chuan Zhan , Mark Campbell , Kilian Q. Weinberger

Due to the existence of dataset shifts, the distributions of data acquired from different working conditions show significant differences in real-world industrial applications, which leads to performance degradation of traditional machine…

Signal Processing · Electrical Eng. & Systems 2021-01-28 Huanjie Wang , Jie Tan , Xiwei Bai , Jiechao Yang

Large pre-trained models are usually fine-tuned on downstream task data, and tested on unseen data. When the train and test data come from different domains, the model is likely to struggle, as it is not adapted to the test domain. We…

Computation and Language · Computer Science 2022-06-02 Omer Antverg , Eyal Ben-David , Yonatan Belinkov

Test-time adaptation (TTA) is a task that continually adapts a pre-trained source model to the target domain during inference. One popular approach involves fine-tuning model with cross-entropy loss according to estimated pseudo-labels.…

Machine Learning · Computer Science 2024-01-26 Guowei Wang , Changxing Ding , Wentao Tan , Mingkui Tan

The performance of machine learning algorithms is known to be negatively affected by possible mismatches between training (source) and test (target) data distributions. In fact, this problem emerges whenever an acoustic scene classification…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-04 Alessandro Ilic Mezza , Emanuël A. P. Habets , Meinard Müller , Augusto Sarti

Data samples generated by several real world processes are dynamic in nature \textit{i.e.}, their characteristics vary with time. Thus it is not possible to train and tackle all possible distributional shifts between training and inference,…

Machine Learning · Computer Science 2021-10-22 Prabhu Teja Sivaprasad , François Fleuret

In self-supervised learning, one trains a model to solve a so-called pretext task on a dataset without the need for human annotation. The main objective, however, is to transfer this model to a target domain and task. Currently, the most…

Computer Vision and Pattern Recognition · Computer Science 2018-05-02 Mehdi Noroozi , Ananth Vinjimoor , Paolo Favaro , Hamed Pirsiavash

When there is a mismatch between the training and test domains, current speech recognition systems show significant performance degradation. Self-training methods, such as noisy student teacher training, can help address this and enable the…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-21 Robert Flynn , Anton Ragni

Recent work on time-series models has leveraged self-supervised training to learn meaningful features and patterns in order to improve performance on downstream tasks and generalize to unseen modalities. While these pretraining methods have…

Machine Learning · Computer Science 2026-04-10 Paul Quinlan , Qingguo Li , Xiaodan Zhu

Neural networks have achieved remarkable success in time series classification, but their reliance on large amounts of labeled data for training limits their applicability in cold-start scenarios. Moreover, they lack interpretability,…

Machine Learning · Computer Science 2025-07-15 Jintao Qu , Zichong Wang , Chenhao Wu , Wenbin Zhang

We propose a new methodology for parameterized constrained robust optimization, an important class of optimization problems under uncertainty, based on learning with a self-supervised penalty-based loss function. Whereas supervised learning…

Optimization and Control · Mathematics 2025-03-10 Wyame Benslimane , Paul Grigas

Continual test-time adaptation aims to continuously adapt a pre-trained model to a stream of target domain data without accessing source data. Without access to source domain data, the model focuses solely on the feature characteristics of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Wenting Yin , Han Sun , Xinru Meng , Ningzhong Liu , Huiyu Zhou

Domain shift is a major problem for deploying deep networks in clinical practice. Network performance drops significantly with (target) images obtained differently than its (source) training data. Due to a lack of target label data, most…

Computer Vision and Pattern Recognition · Computer Science 2020-07-08 Yufan He , Aaron Carass , Lianrui Zuo , Blake E. Dewey , Jerry L. Prince

Hyper-parameters of time series models play an important role in time series analysis. Slight differences in hyper-parameters might lead to very different forecast results for a given model, and therefore, selecting good hyper-parameter…

Machine Learning · Computer Science 2021-02-12 Peiyi Zhang , Xiaodong Jiang , Ginger M Holt , Nikolay Pavlovich Laptev , Caner Komurlu , Peng Gao , Yang Yu