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Flow field segmentation and classification help researchers to understand vortex structure and thus turbulent flow. Existing deep learning methods mainly based on global information and focused on 2D circumstance. Based on flow field…

计算机视觉与模式识别 · 计算机科学 2023-06-16 Xiaorui Bai , Wenyong Wang , Jun Zhang , Yueqing Wang , Yu Xiang

The implementation of modern monitoring systems for power quality disturbances have the potential to generate substantial amounts of data, reaching a point where transmission and storage of high-frequency measurements become impractical.…

系统与控制 · 电气工程与系统科学 2024-07-02 Markus Stroot , Stefan Seiler , Philipp Lutat , Andreas Ulbig

The planning and operation of renewable energy, especially wind power, depend crucially on accurate, timely, and high-resolution weather information. Coarse-grid global numerical weather forecasts are typically downscaled to meet these…

Any decision making process that relies on a probabilistic forecast of future events necessarily requires a calibrated forecast. This paper proposes new methods for empirically assessing forecast calibration in a multivariate setting where…

统计方法学 · 统计学 2014-07-02 Thordis L. Thorarinsdottir , Michael Scheuerer , Christopher Heinz

Edge plasma turbulence is critical to the performance of magnetic confinement fusion devices. Towards better understanding edge turbulence in both theory and experiment, a custom-built physics-informed deep learning framework constrained by…

等离子体物理 · 物理学 2022-05-17 Abhilash Mathews

The majority of modern consumer-level energy is generated by real-time smart metering systems. These frequently contain anomalies, which prevent reliable estimates of the series' evolution. This work introduces a hybrid modeling approach…

机器学习 · 计算机科学 2024-04-09 Sarit Maitra , Sukanya Kundu , Aishwarya Shankar

Underwater environments pose significant challenges for visual Simultaneous Localization and Mapping (SLAM) systems due to limited visibility, inadequate illumination, and sporadic loss of structural features in images. Addressing these…

机器人学 · 计算机科学 2025-03-17 Shida Xu , Kaicheng Zhang , Sen Wang

We present a data-driven feedforward control to attenuate large transient lift experienced by an airfoil disturbed by an extreme level of discrete vortex gust. The current analysis uses a nonlinear machine-learning technique to compress the…

流体动力学 · 物理学 2024-09-18 Kai Fukami , Hiroya Nakao , Kunihiko Taira

This article focuses on the prediction of the vibration frequency response of handheld probes. A novel approach that involves machine learning and readily available data from probes was explored. Vibration probes are efficient and…

应用物理 · 物理学 2024-02-09 Roberto San Millán-Castillo , Eduardo Morgado , Rebeca Goya Esteban

Beamforming with large-scale antenna arrays has been widely used in recent years, which is acknowledged as an important part in 5G and incoming 6G. Thus, various techniques are leveraged to improve its performance, e.g., deep learning,…

We discuss an approach to probabilistic forecasting based on two chained machine-learning steps: a dimensional reduction step that learns a reduction map of predictor information to a low-dimensional space in a manner designed to preserve…

机器学习 · 统计学 2022-03-28 Nick Rittler , Carlo Graziani , Jiali Wang , Rao Kotamarthi

Confidence calibration -- the problem of predicting probability estimates representative of the true correctness likelihood -- is important for classification models in many applications. We discover that modern neural networks, unlike…

机器学习 · 计算机科学 2017-08-04 Chuan Guo , Geoff Pleiss , Yu Sun , Kilian Q. Weinberger

Anomaly detection plays a crucial role in industrial settings, particularly in maintaining the reliability and optimal performance of cooling systems. Traditional anomaly detection methods often face challenges in handling diverse data…

机器学习 · 计算机科学 2024-04-26 Sarala Naidu , Ning Xiong

The Shack-Hartmann wavefront sensor is widely used to measure aberrations induced by atmospheric turbulence in adaptive optics systems. However if there exists strong atmospheric turbulence or the brightness of guide stars is low, the…

天体物理仪器与方法 · 物理学 2021-04-14 Peng Jia , Mingyang Ma , Dongmei Cai , Weihua Wang , Juanjuan Li , Can Li

Inverse ellipsometry, i.e., reconstructing optical constants and film thickness from the measured phase difference $\Delta$ and amplitude ratio $\Psi$, is a fundamentally ill-posed problem. Traditional solutions rely on slow, expert-driven…

机器学习 · 计算机科学 2026-03-20 Yiming Ma , Jianzhi Teng , Xinjie Li , Xin Sun , Zhiyong Wang , Yuzhou Song , Lionel Z. Wang , Bin Chen

The efficient placement of wind turbines relies on accurate local wind speed forecasts. Climate projections provide valuable insight into long-term wind speed conditions, yet their spatial data resolution is typically insufficient for…

应用统计 · 统计学 2024-07-12 Luca Schmidt , Nicole Ludwig

IoT and edge-based inference systems require unique solutions to overcome resource limitations and unpredictable environments. In this paper, we propose an environment-aware dynamic pruning system that handles the unpredictability of edge…

分布式、并行与集群计算 · 计算机科学 2025-03-06 Austin O'Quinn , Conor Snedeker , Siyuan Zhang , Jenna Kline

Efficient point-to-point navigation in the presence of a background flow field is important for robotic applications such as ocean surveying. In such applications, robots may only have knowledge of their immediate surroundings or be faced…

流体动力学 · 物理学 2022-01-19 Peter Gunnarson , Ioannis Mandralis , Guido Novati , Petros Koumoutsakos , John O. Dabiri

Swarms of drones offer an increased sensing aperture, and having them mimic behaviors of natural swarms enhances sampling by adapting the aperture to local conditions. We demonstrate that such an approach makes detecting and tracking…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Rakesh John Amala Arokia Nathan , Sigrid Strand , Daniel Mehrwald , Dmitriy Shutin , Oliver Bimber

Due to limitations in available sensor technology, unmanned aerial vehicles (UAVs) lack an active sensing capability to measure turbulence, gusts, or other unsteady aerodynamic phenomena. Conventional in situ anemometry techniques fail to…

流体动力学 · 物理学 2022-11-30 Nathaniel Simon , Alexander Piqué , David Snyder , Kyle Ikuma , Anirudha Majumdar , Marcus Hultmark