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Test-time adaptation (TTA) aims to transfer knowledge from a source model to unknown test data with potential distribution shifts in an online manner. Many existing TTA methods rely on entropy as a confidence metric to optimize the model.…

机器学习 · 计算机科学 2025-10-07 Chang'an Yi , Xiaohui Deng , Shuaicheng Niu , Yan Zhou

Backpropagation provides a generalized configuration for overcoming catastrophic forgetting. Optimizers such as SGD and Adam are commonly used for weight updates in continual learning and continual pre-training. However, access to gradient…

计算机视觉与模式识别 · 计算机科学 2025-06-09 Tao Feng , Wei Li , Didi Zhu , Hangjie Yuan , Wendi Zheng , Dan Zhang , Jie Tang

Motivated by the superior performance of image diffusion models, more and more researchers strive to extend these models to the text-based video editing task. Nevertheless, current video editing tasks mainly suffer from the dilemma between…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Yutao Chen , Xingning Dong , Tian Gan , Chunluan Zhou , Ming Yang , Qingpei Guo

Integrating model-free and model-based approaches in reinforcement learning has the potential to achieve the high performance of model-free algorithms with low sample complexity. However, this is difficult because an imperfect dynamics…

机器学习 · 计算机科学 2019-06-10 Jacob Buckman , Danijar Hafner , George Tucker , Eugene Brevdo , Honglak Lee

Test-time Adaptation (TTA) adapts a given model to testing domain data with potential domain shifts through online unsupervised learning, yielding impressive performance. However, to date, existing TTA methods primarily focus on…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Chang'an Yi , Xiaohui Deng , Guohao Chen , Yan Zhou , Qinghua Lu , Shuaicheng Niu

Denoising-based diffusion transformers, despite their strong generation performance, suffer from inefficient training convergence. Existing methods addressing this issue, such as REPA (relying on external representation encoders) or SRA…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Mengmeng Wang , Dengyang Jiang , Liuzhuozheng Li , Yucheng Lin , Guojiang Shen , Xiangjie Kong , Yong Liu , Guang Dai , Jingdong Wang

Real-world time series often exhibit a non-stationary nature, degrading the performance of pre-trained forecasting models. Test-Time Adaptation (TTA) addresses this by adjusting models during inference, but existing methods typically update…

机器学习 · 计算机科学 2025-07-01 Heitor R. Medeiros , Hossein Sharifi-Noghabi , Gabriel L. Oliveira , Saghar Irandoust

We present a hybrid surrogate model for electric vehicle parameter estimation and power consumption. We combine our novel architecture Spectral Parameter Operator built on a Fourier Neural Operator backbone for global context and a…

机器学习 · 计算机科学 2025-08-26 Hansol Lim , Jongseong Brad Choi , Jee Won Lee , Haeseong Jeoung , Minkyu Han

Parameter-efficient fine-tuning methods, such as LoRA, reduces the number of trainable parameters. However, they often suffer from scalability issues and differences between their learning pattern and full fine-tuning. To overcome these…

机器学习 · 计算机科学 2025-01-22 Hamid Nasiri , Peter Garraghan

In zero-shot setting, test-time adaptation adjusts pre-trained models using unlabeled data from the test phase to enhance performance on unknown test distributions. Existing cache-enhanced TTA methods rely on a low-entropy criterion to…

计算机视觉与模式识别 · 计算机科学 2025-08-25 Xinyu Chen , Haotian Zhai , Can Zhang , Xiupeng Shi , Ruirui Li

If embedded with command filter properly, the implementation of backstepping design could be dramatically simplified. In this paper, we introduce a command filter with time-varying gain and integrate it with backstepping design, resulting…

系统与控制 · 电气工程与系统科学 2022-01-11 Hefu Ye , Yongduan Song

Domain shift is a common problem in the realistic world, where training data and test data follow different data distributions. To deal with this problem, fully test-time adaptation (TTA) leverages the unlabeled data encountered during test…

人工智能 · 计算机科学 2024-04-29 Guoliang Lin , Hanjiang Lai , Yan Pan , Jian Yin

Efficient real-time solvers for forward and inverse problems are essential in engineering and science applications. Machine learning surrogate models have emerged as promising alternatives to traditional methods, offering substantially…

机器学习 · 计算机科学 2026-05-04 Hai V. Nguyen , Tan Bui-Thanh , Clint Dawson

In this work, we consider learning-based applications in routing to solve a Vehicle Routing variant characterized by stochasticity and multiple objectives. Such problems are representative of practical settings where decision-makers have to…

机器学习 · 计算机科学 2025-12-02 Abdo Abouelrous , Laurens Bliek , Yaoxin Wu , Yingqian Zhang

Accurate object detection and prediction are critical to ensure the safety and efficiency of self-driving architectures. Predicting object trajectories and occupancy enables autonomous vehicles to anticipate movements and make decisions…

计算机视觉与模式识别 · 计算机科学 2026-04-06 Miguel Antunes-García , Luis M. Bergasa , Santiago Montiel-Marín , Rafael Barea , Fabio Sánchez-García , Ángel Llamazares

Variational autoencoder (VAE) architectures have the potential to develop reduced-order models (ROMs) for chaotic fluid flows. We propose a method for learning compact and near-orthogonal ROMs using a combination of a $\beta$-VAE and a…

Variational Auto-Encoders (VAEs) are known to generate blurry and inconsistent samples. One reason for this is the "prior hole" problem. A prior hole refers to regions that have high probability under the VAE's prior but low probability…

机器学习 · 计算机科学 2025-10-02 Debottam Dutta , Chaitanya Amballa , Zhongweiyang Xu , Yu-Lin Wei , Romit Roy Choudhury

Black-box optimization problems, which are common in many real-world applications, require optimization through input-output interactions without access to internal workings. This often leads to significant computational resources being…

神经与进化计算 · 计算机科学 2024-03-25 Hao Hao , Xiaoqun Zhang , Aimin Zhou

Advancements in vision-language models (VLMs) have propelled the field of computer vision, particularly in the zero-shot learning setting. Despite their promise, the effectiveness of these models often diminishes due to domain shifts in…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Elaine Sui , Xiaohan Wang , Serena Yeung-Levy

Models should be able to adapt to unseen data during test-time to avoid performance drops caused by inevitable distribution shifts in real-world deployment scenarios. In this work, we tackle the practical yet challenging test-time…

计算机视觉与模式识别 · 计算机科学 2022-12-02 Yunhe Gao , Xingjian Shi , Yi Zhu , Hao Wang , Zhiqiang Tang , Xiong Zhou , Mu Li , Dimitris N. Metaxas