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Often, constraints arise in deployment settings where even lightweight parameter updates e.g. parameter-efficient fine-tuning could induce model shift or tuning instability. We study test-time adaptation of foundation models for few-shot…

Machine Learning · Statistics 2026-02-04 Tahir Qasim Syed , Behraj Khan

In this paper, we explore techniques centered around periodic sampling of model weights that provide convergence improvements on gradient update methods (vanilla \acs{SGD}, Momentum, Adam) for a variety of vision problems (classification,…

Machine Learning · Computer Science 2020-03-23 Samarth Tripathi , Jiayi Liu , Unmesh Kurup , Mohak Shah , Sauptik Dhar

We consider the problem of learning linear prediction models with model misspecification bias. In such case, the collinearity among input variables may inflate the error of parameter estimation, resulting in instability of prediction…

Machine Learning · Computer Science 2019-12-02 Zheyan Shen , Peng Cui , Tong Zhang , Kun Kuang

Wearable human activity recognition (WHAR) models often suffer from performance degradation under real-world cross-user distribution shifts. Test-time adaptation (TTA) mitigates this degradation by adapting models online using unlabeled…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Zishu Zhou , Zaipeng Xie , Xuanyao Jie

Controllable video generation has emerged as a versatile tool for autonomous driving, enabling realistic synthesis of traffic scenarios. However, existing methods depend on control signals at inference time to guide the generative model…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Mirlan Karimov , Teodora Spasojevic , Markus Braun , Julian Wiederer , Vasileios Belagiannis , Marc Pollefeys

Video stabilization remains a fundamental problem in computer vision, particularly pixel-level synthesis solutions for video stabilization, which synthesize full-frame outputs, add to the complexity of this task. These methods aim to…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Muhammad Kashif Ali , Eun Woo Im , Dongjin Kim , Tae Hyun Kim , Vivek Gupta , Haonan Luo , Tianrui Li

Federated Learning enables collaborative model training without centralising data, but its effectiveness varies with the selection of the aggregation strategy. This choice is non-trivial, as performance varies widely across datasets,…

Machine Learning · Computer Science 2026-04-10 Dian S. Y. Pang , Endrias Y. Ergetu , Eric Topham , Ahmed E. Fetit

Distribution shifts, which often occur in the real world, degrade the accuracy of deep learning systems, and thus improving robustness to distribution shifts is essential for practical applications. To improve robustness, we study an image…

Computer Vision and Pattern Recognition · Computer Science 2024-10-23 Shohei Enomoto , Monikka Roslianna Busto , Takeharu Eda

Iterative-based methods have become mainstream in stereo matching due to their high performance. However, these methods heavily rely on labeled data and face challenges with unlabeled real-world data. To this end, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Jingyi Zhou , Peng Ye , Haoyu Zhang , Jiakang Yuan , Rao Qiang , Liu YangChenXu , Wu Cailin , Feng Xu , Tao Chen

The ability to scene understanding in adverse visual conditions, e.g., nighttime, has sparked active research for RGB-Thermal (RGB-T) semantic segmentation. However, it is essentially hampered by two critical problems: 1) the day-night gap…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Yexin Liu , Weiming Zhang , Guoyang Zhao , Jinjing Zhu , Athanasios Vasilakos , Lin Wang

Test-time adaptation with pre-trained vision-language models (VLMs) has attracted increasing attention for tackling the issue of distribution shift during the test phase. While prior methods have shown effectiveness in addressing…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Baoshun Tong , Kaiyu Song , Hanjiang Lai

This paper presents a simple yet effective approach that improves continual test-time adaptation (TTA) in a memory-efficient manner. TTA may primarily be conducted on edge devices with limited memory, so reducing memory is crucial but has…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Junha Song , Jungsoo Lee , In So Kweon , Sungha Choi

Data augmentation has been actively studied for robust neural networks. Most of the recent data augmentation methods focus on augmenting datasets during the training phase. At the testing phase, simple transformations are still widely used…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Ildoo Kim , Younghoon Kim , Sungwoong Kim

Consistency models imitate the multi-step sampling of score-based diffusion in a single forward pass of a neural network. They can be learned in two ways: consistency distillation and consistency training. The former relies on the true…

Machine Learning · Computer Science 2025-07-03 Thibaut Issenhuth , Sangchul Lee , Ludovic Dos Santos , Jean-Yves Franceschi , Chansoo Kim , Alain Rakotomamonjy

Visual-based perception is the key module for autonomous driving. Among those visual perception tasks, video object detection is a primary yet challenging one because of feature degradation caused by fast motion or multiple poses. Current…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Yiming Cui , Cheng Han , Dongfang Liu

Recent test-time reasoning methods improve performance by generating more candidate chains or searching over larger reasoning trees, but they typically lack explicit control over when to expand, what to prune, how to repair, and when to…

Artificial Intelligence · Computer Science 2026-03-31 Siyuan Ma , Bo Gao , Zikai Xiao , Hailong Wang , Xinlei Yu , Rui Qian , Jiayu Qian , Luqi Gong , Yang Liu

Consistency Training (CT) has recently emerged as a strong alternative to diffusion models for image generation. However, non-distillation CT often suffers from high variance and instability, motivating ongoing research into its training…

Machine Learning · Computer Science 2025-06-05 Gianluigi Silvestri , Luca Ambrogioni , Chieh-Hsin Lai , Yuhta Takida , Yuki Mitsufuji

Vision-language-action (VLA) models have demonstrated exceptional performance in natural language-driven perception and control. However, the high computational cost of VLA models poses significant efficiency challenges, particularly for…

Recent advances in test-time adaptation (TTA) for Vision-Language Models (VLMs) have garnered increasing attention, particularly through the use of multiple augmented views of a single image to boost zero-shot generalization. Unfortunately,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Zhaohong Huang , Yuxin Zhang , Jingjing Xie , Fei Chao , Rongrong Ji

Existing test-time prompt tuning (TPT) methods focus on single-modality data, primarily enhancing images and using confidence ratings to filter out inaccurate images. However, while image generation models can produce visually diverse…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Chun-Mei Feng , Yuanyang He , Jian Zou , Salman Khan , Huan Xiong , Zhen Li , Wangmeng Zuo , Rick Siow Mong Goh , Yong Liu