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Navigating under non-stationary environment shifts poses a critical challenge for a Vision-and-Language Navigation (VLN) agent deployed in the wild. Yet, existing Test-Time Adaptation (TTA) methods for VLN largely treat online adaptation as…

机器人学 · 计算机科学 2026-05-25 Zixuan Hu , Xuantuo Huang , Yancheng Li , Yichun Hu , Shengyong Xu , Ling-Yu Duan

The vision transformer splits each image into a sequence of tokens with fixed length and processes the tokens in the same way as words in natural language processing. More tokens normally lead to better performance but considerably…

计算机视觉与模式识别 · 计算机科学 2021-12-07 Yichen Zhu , Yuqin Zhu , Jie Du , Yi Wang , Zhicai Ou , Feifei Feng , Jian Tang

Vision Language Models (VLMs) have become essential backbones for multimodal intelligence, yet significant safety challenges limit their real-world application. While textual inputs are often effectively safeguarded, adversarial visual…

计算机视觉与模式识别 · 计算机科学 2025-02-11 Yi Ding , Bolian Li , Ruqi Zhang

Test-time adaptation (TTA) aims to adapt a trained classifier using online unlabeled test data only, without any information related to the training procedure. Most existing TTA methods adapt the trained classifier using the classifier's…

计算机视觉与模式识别 · 计算机科学 2023-03-01 Minguk Jang , Sae-Young Chung , Hye Won Chung

Text understanding often suffers from domain shifts. To handle testing domains, domain adaptation (DA) is trained to adapt to a fixed and observed testing domain; a more challenging paradigm, test-time adaptation (TTA), cannot access the…

计算与语言 · 计算机科学 2026-01-05 Tianlun Liu , Zhiliang Tian , Zhen Huang , Xingzhi Zhou , Wanlong Yu , Tianle Liu , Feng Liu , Dongsheng Li

Test-time adaptation (TTA) updates the model weights during the inference stage using testing data to enhance generalization. However, this practice exposes TTA to adversarial risks. Existing studies have shown that when TTA is updated with…

机器学习 · 计算机科学 2025-03-03 Yongyi Su , Yushu Li , Nanqing Liu , Kui Jia , Xulei Yang , Chuan-Sheng Foo , Xun Xu

A conformal classifier produces a set of predicted classes and provides a probabilistic guarantee that the set includes the true class. Unfortunately, it is often the case that conformal classifiers produce uninformatively large sets. In…

机器学习 · 计算机科学 2025-05-30 Divya Shanmugam , Helen Lu , Swami Sankaranarayanan , John Guttag

In Test-time Adaptation (TTA), given a source model, the goal is to adapt it to make better predictions for test instances from a different distribution than the source. Crucially, TTA assumes no access to the source data or even any…

计算机视觉与模式识别 · 计算机科学 2022-09-08 Ansh Khurana , Sujoy Paul , Piyush Rai , Soma Biswas , Gaurav Aggarwal

Token merging has emerged as an effective strategy to accelerate Vision Transformers (ViT) by reducing computational costs. However, existing methods primarily rely on the visual token's feature similarity for token merging, overlooking the…

计算机视觉与模式识别 · 计算机科学 2025-06-26 Hsiang-Wei Huang , Wenhao Chai , Kuang-Ming Chen , Cheng-Yen Yang , Jenq-Neng Hwang

The practical utility of Speech Emotion Recognition (SER) systems is undermined by their fragility to domain shifts, such as speaker variability, the distinction between acted and naturalistic emotions, and cross-corpus variations. While…

音频与语音处理 · 电气工程与系统科学 2026-01-26 Jiaheng Dong , Hong Jia , Ting Dang

Test-Time Adaptation (TTA) adjusts models using unlabeled test data to handle dynamic distribution shifts. However, existing methods rely on frequent adaptation and high computational cost, making them unsuitable for resource-constrained…

机器学习 · 计算机科学 2025-11-20 Hyeongheon Cha , Dong Min Kim , Hye Won Chung , Taesik Gong , Sung-Ju Lee

In the training and inference of spiking neural networks (SNNs), direct training and lightweight computation methods have been orthogonally developed, aimed at reducing power consumption. However, only a limited number of approaches have…

人工智能 · 计算机科学 2024-08-23 Donghwa Kang , Youngmoon Lee , Eun-Kyu Lee , Brent Kang , Jinkyu Lee , Hyeongboo Baek

Machine learning surrogates are increasingly used in engineering to accelerate costly simulations, yet distribution shifts between training and deployment often cause severe performance degradation (e.g., unseen geometries or…

机器学习 · 计算机科学 2026-02-18 Anna Zimmel , Paul Setinek , Gianluca Galletti , Johannes Brandstetter , Werner Zellinger

Test-time adaptation (TTA) adapts the pre-trained models during inference using unlabeled test data and has received a lot of research attention due to its potential practical value. Unfortunately, without any label supervision, existing…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Longhui Yuan , Shuang Li , Zhuo He , Binhui Xie

Vision-Language-Action (VLA) models pretrained on large-scale multimodal datasets have emerged as powerful foundations for robotic perception and control. However, their massive scale, often billions of parameters, poses significant…

机器人学 · 计算机科学 2025-12-11 Yifan Ye , Jiaqi Ma , Jun Cen , Zhihe Lu

Image-to-image translation has emerged as a powerful technique in medical imaging, enabling tasks such as image denoising and cross-modality conversion. However, it suffers from limitations in handling out-of-distribution samples without…

计算机视觉与模式识别 · 计算机科学 2025-09-17 Irene Iele , Francesco Di Feola , Valerio Guarrasi , Paolo Soda

Test-time adaptation (TTA) of 3D point clouds is crucial for mitigating discrepancies between training and testing samples in real-world scenarios, particularly when handling corrupted point clouds. LiDAR data, for instance, can be affected…

计算机视觉与模式识别 · 计算机科学 2024-11-25 Hamidreza Dastmalchi , Aijun An , Ali Cheraghian , Shafin Rahman , Sameera Ramasinghe

Machine learning methods strive to acquire a robust model during the training process that can effectively generalize to test samples, even in the presence of distribution shifts. However, these methods often suffer from performance…

机器学习 · 计算机科学 2024-12-13 Jian Liang , Ran He , Tieniu Tan

Recent learning-based multi-view stereo (MVS) methods are data-driven and have achieved remarkable progress due to large-scale training data and advanced architectures. However, their generalization remains sub-optimal due to fixed model…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Hannuo Zhang , Zhixiang Chi , Yang Wang , Xinxin Zuo

Test-Time Adaptation (TTA) aims to tackle distribution shifts using unlabeled test data without access to the source data. In the context of multimodal data, there are more complex noise patterns than unimodal data such as simultaneous…

机器学习 · 计算机科学 2025-03-05 Zirun Guo , Tao Jin