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Most time series foundation models are pretrained by directly predicting future observations, which often yields weakly structured latent representations that capture surface noise rather than coherent and predictable temporal dynamics. In…

Machine Learning · Computer Science 2026-02-17 Xinxing Zhou , Qingren Yao , Yiji Zhao , Chenghao Liu , Flora Salim , Xiaojie Yuan , Yanlong Wen , Ming Jin

Sensing is a universal task in science and engineering. Downstream tasks from sensing include inferring full state estimates of a system (system identification), control decisions, and forecasting. These tasks are exceptionally challenging…

Dynamical Systems · Mathematics 2024-06-06 Jan P. Williams , Olivia Zahn , J. Nathan Kutz

Assessment of voice signals has long been performed with the assumption of periodicity as this facilitates analysis. Near periodicity of normal voice signals makes short-time harmonic modeling an appealing choice to extract vocal feature…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-10 Takeshi Ikuma , Andrew J. McWhorter , Lacey Adkins , Melda Kunduk

Existing few-shot segmentation (FSS) methods mainly focus on designing novel support-query matching and self-matching mechanisms to exploit implicit knowledge in pre-trained backbones. However, the performance of these methods is often…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Shijie Chang , Lihe Zhang , Huchuan Lu

Foundation models constitute a significant advancement in computer vision: after a single, albeit costly, training phase, they can address a wide array of tasks. In the field of Earth observation, over 75 remote sensing vision foundation…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Pierre Adorni , Minh-Tan Pham , Stéphane May , Sébastien Lefèvre

Encoding models are used for predicting brain activity in response to sensory stimuli with the objective of elucidating how sensory information is represented in the brain. Encoding models typically comprise a nonlinear transformation of…

Neurons and Cognition · Quantitative Biology 2017-03-13 Umut Güçlü , Marcel A. J. van Gerven

Frequency discrimination is a fundamental task of the auditory system. The mammalian inner ear, or cochlea, provides a place code in which different frequencies are detected at different spatial locations. However, a temporal code based on…

Neurons and Cognition · Quantitative Biology 2015-06-05 Tobias Reichenbach , A. J. Hudspeth

Neural operators extend data-driven models to map between infinite-dimensional functional spaces. While these operators perform effectively in either the time or frequency domain, their performance may be limited when applied to…

Machine Learning · Computer Science 2024-06-06 Karn Tiwari , N M Anoop Krishnan , A P Prathosh

Imaging by aperture synthesis from interferometric data is a well-known, but is a strong ill-posed inverse problem. Strong and faint radio sources can be imaged unambiguously using time and frequency integration to gather more Fourier…

Instrumentation and Methods for Astrophysics · Physics 2015-12-22 M. Jiang , J. N. Girard , J. -L. Starck , S. Corbel , C. Tasse

Diffusion models have emerged as state-of-the-art generative methods for image synthesis, yet their potential as general-purpose feature encoders remains underexplored. Trained for denoising and generation without labels, they can be…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 A. Nieto Juscafresa , Á. Mazcuñán Herreros , J. Sullivan

This report will explore and answer fundamental questions about taking Fourier Transforms and tying it with recent advances in AI and neural architecture. One interpretation of the Fourier Transform is decomposing a signal into its…

Sound · Computer Science 2023-08-22 Prateek Verma

Wearable foundation models (WFMs), trained on large volumes of data collected by affordable, always-on devices, have demonstrated strong performance on short-term, well-defined health monitoring tasks, including activity recognition,…

Machine Learning · Computer Science 2026-03-23 Yu Yvonne Wu , Yuwei Zhang , Hyungjun Yoon , Ting Dang , Dimitris Spathis , Tong Xia , Qiang Yang , Jing Han , Dong Ma , Sung-Ju Lee , Cecilia Mascolo

EEG foundation models, pre-trained on large-scale unlabelled EEG data, have emerged as a promising direction towards learning generalizable EEG representations. Despite showing positive results in data-rich regimes, they often fail to…

Astronomical surveys produce time-series data by observing stellar objects across multiple wavelength bands. Foundational transformer-based models, such as Astromer, encode each time-series as a sequence of embeddings of uniform dimensions.…

Instrumentation and Methods for Astrophysics · Physics 2025-06-16 Gabriel Chiong , Ignacio Becker , Pavlos Protopapas

Music is a structured and perceptually rich sequence of sounds in time, whose perception is shaped by the interplay of expectation and uncertainty about what comes next. Yet the uncertainty we infer from music depends on how the musical…

Physics and Society · Physics 2026-03-12 Lluc Bono Rosselló , Robert Jankowski , Hugues Bersini , Marián Boguñá , M. Ángeles Serrano

A foundation model like GPT elicits many emergent abilities, owing to the pre-training with broad inclusion of data and the use of the powerful Transformer architecture. While foundation models in natural languages are prevalent, can we…

Machine Learning · Computer Science 2025-06-18 Ziyuan Tang , Jie Chen

The famous Fourier theorem states that, under some restrictions, any periodic function (or real world signal) can be obtained as a sum of sinusoids, and hence, a technique exists for decomposing a signal into its sinusoidal components. From…

Numerical Analysis · Computer Science 2008-04-24 Sossio Vergara

Point tracking in videos is a fundamental task with applications in robotics, video editing, and more. While many vision tasks benefit from pre-trained feature backbones to improve generalizability, point tracking has primarily relied on…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Inès Hyeonsu Kim , Seokju Cho , Jiahui Huang , Jung Yi , Joon-Young Lee , Seungryong Kim

In the near future, more and more machines will perform tasks in the vicinity of human spaces or support them directly in their spatially bound activities. In order to simplify the verbal communication and the interaction between robotic…

Machine Learning · Computer Science 2020-04-14 Sebastian Feld , Steffen Illium , Andreas Sedlmeier , Lenz Belzner

Ultrasound image segmentation is pivotal for clinical diagnosis, yet challenged by speckle noise and imaging artifacts. Recently, DINOv3 has shown remarkable promise in medical image segmentation with its powerful representation…

Computer Vision and Pattern Recognition · Computer Science 2025-12-15 Yixuan Zhang , Qing Xu , Yue Li , Xiangjian He , Qian Zhang , Mainul Haque , Rong Qu , Wenting Duan , Zhen Chen