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Machine learning researchers strive to develop better and better algorithms to solve computer vision problems, such as image classification. In recent years, the classification of micro-Doppler spectrograms has also benefited from these…

信号处理 · 电气工程与系统科学 2025-12-02 Arkadiusz Czuba

A reexamination of period finding algorithms is prompted by new large area astronomical sky surveys that can identify billions of individual sources having a thousand or more observations per source. This large increase in data necessitates…

天体物理仪器与方法 · 物理学 2025-02-05 Douglas P. Finkbeiner , Thomas A. Prince , Samuel E. Whitebook

A supervised diagnosis system for digital mammogram is developed. The diagnosis processes are done by transforming the data of the images into a feature vector using wavelets multilevel decomposition. This vector is used as the feature…

图像与视频处理 · 电气工程与系统科学 2020-03-09 Essam A. Rashed , and Mohamed G. Awad

In this paper, we propose to utilize Automated Machine Learning to adaptively search a neural architecture for deepfake detection. This is the first time to employ automated machine learning for deepfake detection. Based on our explored…

计算机视觉与模式识别 · 计算机科学 2021-08-13 Ping Liu , Yuewei Lin , Yang He , Yunchao Wei , Liangli Zhen , Joey Tianyi Zhou , Rick Siow Mong Goh , Jingen Liu

We introduce Mask-ToF, a method to reduce flying pixels (FP) in time-of-flight (ToF) depth captures. FPs are pervasive artifacts which occur around depth edges, where light paths from both an object and its background are integrated over…

图像与视频处理 · 电气工程与系统科学 2021-04-01 Ilya Chugunov , Seung-Hwan Baek , Qiang Fu , Wolfgang Heidrich , Felix Heide

The demand for device-free indoor localization using commercial Wi-Fi devices has rapidly increased in various fields due to its convenience and versatile applications. However, random frequency offset (RFO) in wireless channels poses…

信号处理 · 电气工程与系统科学 2023-04-14 Wen Liu , An-Hung Hsiao , Li-Hsiang Shen , Kai-Ten Feng

High-frequency features are critical in multiscale phenomena such as turbulent flows and phase transitions, since they encode essential physical information. The recently proposed Wavelet Neural Operator (WNO) utilizes wavelets'…

数值分析 · 数学 2025-06-24 Wei-Min Lei , Hou-Biao Li

Laminated composite materials are widely used in most fields of engineering. Wave propagation analysis plays an essential role in understanding the short-duration transient response of composite structures. The forward physics-based models…

信号处理 · 电气工程与系统科学 2022-12-14 Mahindra Rautela , J. Senthilnath , Armin Huber , S. Gopalakrishnan

Wave transport devices, such as amplifiers, frequency converters, and nonreciprocal devices, are essential for modern communication, signal processing, and sensing applications. Of particular interest are traveling wave setups, which offer…

光学 · 物理学 2025-11-05 Jonas Landgraf , Clara C. Wanjura , Vittorio Peano , Florian Marquardt

Gravitational wave lensing, particularly microlensing by compact dark matter (DM), offers a unique avenue to probe the nature of dark matter. However, conventional detection methods are often computationally expensive, inefficient, and…

天体物理仪器与方法 · 物理学 2025-09-08 Ao Liu , Tonghua Liu , Dejiang Li , Cuihong Wen , Jieci Wang , Kai Liao , Jiaxing Cui , Huan Zhou

Gravitational waves are ripples in the space time fabric when high energy events such as black hole mergers or neutron star collisions take place. The first Gravitational Wave (GW) detection (GW150914) was made by the Laser Interferometer…

天体物理仪器与方法 · 物理学 2021-04-13 Yash Chauhan

Evolutionary Algorithms and Generative Deep Learning have been two of the most powerful tools for sound generation tasks. However, they have limitations: Evolutionary Algorithms require complicated designs, posing challenges in control and…

声音 · 计算机科学 2024-04-23 Jinyue Guo , Anna-Maria Christodoulou , Balint Laczko , Kyrre Glette

Modern adaptive optics (AO) systems for large telescopes require tomographic techniques to reconstruct the phase aberrations induced by the turbulent atmosphere along a line of sight to a target which is angularly separated from the guide…

天体物理仪器与方法 · 物理学 2015-06-03 James Osborn , Francisco Javier De Cos Juez , Dani Guzman , Timothy Butterley , Richard Myers , Andres Guesalaga , Jesus Laine

Three-dimensional (3D) magnetic reconstruction is vital to the study of novel magnetic materials for 3D spintronics. Vector field electron tomography (VFET) is a major in house tool to achieve that. However, conventional VFET reconstruction…

材料科学 · 物理学 2022-10-07 Boyao Lyu , Shihua Zhao , Yibo Zhang , Weiwei Wang , Haifeng Du , Jiadong Zang

Time-of-flight (TOF) information provides more accurate location data for annihilation photons, thereby enhancing the quality of PET reconstruction images and reducing noise. List-mode reconstruction has a significant advantage in handling…

图像与视频处理 · 电气工程与系统科学 2024-10-16 Rui Hu , Chenxu Li , Kun Tian , Jianan Cui , Yunmei Chen , Huafeng Liu

Since their invention in the 1980s [1], optical tweezers have found a wide range of applications, from biophotonics and mechanobiology to microscopy and optomechanics [2, 3, 4, 5]. Simulations of the motion of microscopic particles held by…

In this paper, we propose a data-driven framework for collaborative wideband spectrum sensing and scheduling for networked unmanned aerial vehicles (UAVs), which act as the secondary users (SUs) to opportunistically utilize detected…

机器学习 · 计算机科学 2024-06-05 Sravan Reddy Chintareddy , Keenan Roach , Kenny Cheung , Morteza Hashemi

The sensitivity of wide-parameter-space searches for continuous gravitational waves is limited by computational cost. Recently it was shown that Deep Neural Networks (DNNs) can perform all-sky searches directly on (single-detector) strain…

广义相对论与量子宇宙学 · 物理学 2020-07-15 Christoph Dreissigacker , Reinhard Prix

As we look to the next generation of adaptive optics systems, now is the time to develop and explore the technologies that will allow us to image rocky Earth-like planets; wavefront control algorithms are not only a crucial component of…

地球与行星天体物理 · 物理学 2023-09-06 J. Fowler , Rico Landman

Time series (TS) forecasting has been an unprecedentedly popular problem in recent years, with ubiquitous applications in both scientific and business fields. Various approaches have been introduced to time series analysis, including both…

机器学习 · 计算机科学 2024-05-20 Ziyou Guo , Yan Sun , Tieru Wu
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