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Object detectors achieve strong performance under nominal imaging conditions but can fail silently when exposed to blur, noise, compression, adverse weather, or resolution changes. In safety-critical settings, it is therefore insufficient…

计算机视觉与模式识别 · 计算机科学 2026-02-23 Stefan Becker , Simon Weiss , Wolfgang Hübner , Michael Arens

In this first of two papers, we present a new method for searching for oscillatory features in the primordial power spectrum. A wide variety of models predict these features in one of two different flavors: logarithmically spaced…

宇宙学与河外天体物理 · 物理学 2014-04-02 P. Daniel Meerburg , David N. Spergel , Benjamin D. Wandelt

The Out-of-Time-Order Correlator (OTOC) is a standard algebraic diagnostic of quantum information scrambling, but it offers limited direct geometric intuition. In this note, we propose a Bohmian, trajectory-based framework for constructing…

量子物理 · 物理学 2026-03-24 Stephen Wiggins

Robust generalization under distribution shift remains difficult to monitor and optimize in the absence of target-domain labels, as models with similar in-distribution accuracy can exhibit markedly different out-of-distribution (OOD)…

机器学习 · 计算机科学 2026-02-06 Ali Zia , Farid Hazratian

The LIGO observatories detect gravitational waves through monitoring changes in the detectors' length down to below $10^{-19}$\,$m/\sqrt{Hz}$ variation---a small fraction of the size of the atoms that make up the detector. To achieve this…

天体物理仪器与方法 · 物理学 2020-05-27 Robert E. Colgan , K. Rainer Corley , Yenson Lau , Imre Bartos , John N. Wright , Zsuzsa Marka , Szabolcs Marka

We introduce EGIC, an enhanced generative image compression method that allows traversing the distortion-perception curve efficiently from a single model. EGIC is based on two novel building blocks: i) OASIS-C, a conditional pre-trained…

图像与视频处理 · 电气工程与系统科学 2024-07-18 Nikolai Körber , Eduard Kromer , Andreas Siebert , Sascha Hauke , Daniel Mueller-Gritschneder , Björn Schuller

Damage identification is a core task in structural health monitoring. In practice, however, its reliability is often compromised by confounding non-damage effects, such as variations in excitation and environmental conditions, which can…

机器学习 · 计算机科学 2026-04-22 Xudong Jian , Charikleia Stoura , Simon Scandella , Eleni Chatzi

Reliable inference of system degradation from sensor data is fundamental to condition monitoring and prognostics in mechanical and infrastructural systems. Since degradation is rarely directly observable and measurable, it must be inferred…

机器学习 · 计算机科学 2026-03-13 Mengjie Zhao , Olga Fink

This paper addresses the data-driven identification of latent dynamical representations of partially-observed systems, i.e., dynamical systems for which some components are never observed, with an emphasis on forecasting applications,…

Oscillations in the frequency profile of the stochastic gravitational wave background are a characteristic prediction of small-scale features during inflation. In this paper we present a first investigation of the detection prospects of…

宇宙学与河外天体物理 · 物理学 2022-07-20 Jacopo Fumagalli , Mauro Pieroni , Sébastien Renaux-Petel , Lukas T. Witkowski

Phase transitions during inflation can generate a stochastic gravitational-wave background that probes primordial physics. We study the detectability and parameter reconstruction of such a signal with a space-based gravitational-wave…

宇宙学与河外天体物理 · 物理学 2026-03-24 Qingyuan Liang , Chen Yang , Haipeng An , Huai-Ke Guo

Several definitions of phase have been proposed for stochastic oscillators, among which the mean-return-time phase and the stochastic asymptotic phase have drawn particular attention. Quantitative comparisons between these two definitions…

数学物理 · 物理学 2025-09-16 Yangyang Du

Careful monitoring of harmonically bound (or as a limiting case, free) masses is the basis of current and future gravitational wave detectors, and of nanomechanical devices designed to access the quantum regime. We analyze the effects of…

量子物理 · 物理学 2009-11-10 Stephen L. Adler

Fine-grained open-set recognition (FineOSR) aims to recognize images belonging to classes with subtle appearance differences while rejecting images of unknown classes. A recent trend in OSR shows the benefit of generative models to…

计算机视觉与模式识别 · 计算机科学 2023-10-31 Wentao Bao , Qi Yu , Yu Kong

Biological oscillations are periodic changes in various signaling processes crucial for the proper functioning of living organisms. These oscillations are modeled by ordinary differential equations, with coefficient variations leading to…

机器学习 · 计算机科学 2024-12-04 Heng Rao , Yu Gu , Jason Zipeng Zhang , Ge Yu , Yang Cao , Minghan Chen

In this article, an original data-driven approach is proposed to detect both linear and nonlinear damage in structures using output-only responses. The method deploys variational mode decomposition (VMD) and a generalised autoregressive…

计算机视觉与模式识别 · 计算机科学 2022-01-31 Vahid Reza Gharehbaghi , Hashem Kalbkhani , Ehsan Noroozinejad Farsangi , T. Y. Yang , Seyedali Mirjalili

We study the problem of identification of linear dynamical system from a single trajectory, via excitations of isotropic Gaussian. In stark contrast with previously reported results, Ordinary Least Squares (OLS) estimator for even…

统计理论 · 数学 2023-05-23 Muhammad Abdullah Naeem , Miroslav Pajic

Learning the underlying potential energy of stochastic gradient systems from partial and noisy observations is a fundamental problem arising in physics, chemistry, and data-driven modeling. Classical approaches often rely on direct…

机器学习 · 计算机科学 2026-04-23 Yubin Lu , Xiaofan Li , Chun Liu , Qi Tang , Yiwei Wang

The understanding and modeling of complex physical phenomena through dynamical systems has historically driven scientific progress, as it provides the tools for predicting the behavior of different systems under diverse conditions through…

机器学习 · 计算机科学 2025-10-03 Karin L. Yu , Eleni Chatzi , Georgios Kissas

Anomaly detection in multivariate time series is a critical task across a wide range of real-world applications, where abnormal behaviour is rare, labels are unavailable, and the cost of a miss is high. The central challenge is learning a…

机器学习 · 计算机科学 2026-05-25 Alberto D. Cencillo , Leonardo Concepción , Isaac Triguero , Julián Luengo
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