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Principal component analysis (PCA) is often used for analyzing data in the most diverse areas. In this work, we report an integrated approach to several theoretical and practical aspects of PCA. We start by providing, in an intuitive and…

Computational Engineering, Finance, and Science · Computer Science 2021-06-09 Felipe L. Gewers , Gustavo R. Ferreira , Henrique F. de Arruda , Filipi N. Silva , Cesar H. Comin , Diego R. Amancio , Luciano da F. Costa

Ensuring the reliable operation of power transformers is critical to grid stability. Dissolved Gas Analysis (DGA) is widely used for fault diagnosis, but traditional methods rely on heuristic rules, which may lead to inconsistent results.…

Machine Learning · Computer Science 2025-05-22 Hootan Mahmoodiyan , Maryam Ahang , Mostafa Abbasi , Homayoun Najjaran

This paper presents an effective approach to identify power quality events based on IEEE Std 1159-2009 caused by intermittent power sources like those of renewable energy. An efficient characterization of these disturbances is granted by…

Signal Processing · Electrical Eng. & Systems 2024-02-20 M. D. Borrás , J. C. Bravo , J. C. Montaño

A convolutional neural network (CNN) architecture is developed to improve the pulse shape discrimination (PSD) power of the gadolinium-loaded organic liquid scintillation detector to reduce the fast neutron background in the inverse beta…

Uninterruptible power supply is the main motive of power utility companies that motivate them for identifying and locating the different types of faults as quickly as possible to protect the power system prevent complete power black outs…

Systems and Control · Computer Science 2016-09-29 P. K. Ray , B. K. Panigrahi , P. K. Rout , A. Mohanty , H. Dubey

We present a time-domain method to detect and correct spectral alterations of signals by employing statistical characterization of waveforms and a pattern-recognition procedure using simple Artificial Neural Networks. The proposed strategy…

Signal Processing · Electrical Eng. & Systems 2022-12-29 Guillermo H. Bustos , Héctor H. Segnorile

Unmanned aerial vehicles (UAVs) enable efficient in-situ radiation characterization of large-aperture antennas directly in their deployment environments. In such measurements, a continuous-wave (CW) probe tone is commonly transmitted to…

Modeling power electronic converters at frequencies close to or above half the switching frequency has been difficult due to the time-variant and discontinuous switching actions. This paper uses the properties of moving Fourier coefficients…

Systems and Control · Electrical Eng. & Systems 2024-06-28 Hongchang Li , Kangping Wang , Jingyang Fang , Wenjie Chen , Xu Yang

A truncated partial-wave analysis is performed for $\eta$-photoproduction using the polarization observables $\sigma_0, \Sigma, T, E, F$ and $G$. Different truncation orders are analyzed for six energy bins within the range of…

Nuclear Theory · Physics 2024-04-12 Philipp Kroenert , Yannick Wunderlich , Farah Afzal , Annika Thiel

A common concern in the field of functional data analysis is the challenge of temporal misalignment, which is typically addressed using curve registration methods. Currently, most of these methods assume the data is governed by a single…

Partial Adaptation (PDA) addresses a practical scenario in which the target domain contains only a subset of classes in the source domain. While PDA should take into account both class-level and sample-level to mitigate negative transfer,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-10 Youngeun Kim , Sungeun Hong , Seunghan Yang , Sungil Kang , Yunho Jeon , Jiwon Kim

Estimating slide- and patch-level gene expression profiles from pathology images enables rapid and low-cost molecular analysis with broad clinical impact. Despite strong results, existing approaches treat gene expression as a mere slide- or…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Kazuya Nishimura , Ryoma Bise , Shinnosuke Matsuo , Haruka Hirose , Yasuhiro Kojima

We use mean field theory to study the response properties of a simple randomly-connected model cortical network of leaky integrate-and-fire neurons with balanced excitation and inhibition. The formulation permits arbitrary temporal…

Disordered Systems and Neural Networks · Physics 2007-05-23 John Hertz , Barry Richmond , Kristian Nilsen

Large-scale AI training workloads in modern data centers exhibit rapid and periodic power fluctuations, which may induce significant voltage deviations in power distribution systems. Existing voltage regulation methods, such as droop…

Systems and Control · Electrical Eng. & Systems 2026-03-20 Mingyuan Yan , Trager Joswig-Jones , Baosen Zhang , Yize Chen , Wenqi Cui

Time series analysis and modelling constitute a crucial research area. Traditional artificial neural networks struggle with complex, non-stationary time series data due to high computational complexity, limited ability to capture temporal…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Chengzhi Liu , Zheng Tao , Zihong Luo , Chenghao Liu

This paper presents a Wavelet Probabilistic Recurrent Convolutional Network (WPRCN) for Multivariate Time Series Classification (MTSC), especially effective in handling non-stationary environments, data scarcity and noise perturbations. We…

Machine Learning · Computer Science 2025-05-26 Pu Yang , J. A. Barria

We study the optical pulse response of a superconducting half-wavelength coplanar waveguide (CPW) resonator. We apply a short optical pulse to the center strip of the CPW resonator, where the current distribution shows antinodes or nodes…

Superconductivity · Physics 2021-08-10 J. Hu , Q. He , F. Yu , Y. Chen , M. Dai , H. Guan , P. Ouyang , J. Han , C. Liu , X. Dai , Z. Mai , X. Liu , M. Zhang , L. F. Wei , M. R. Vissers , J. Gao , Y. Wang

Cardiovascular diseases (CVDs) are the main cause of deaths all over the world. Heart murmurs are the most common abnormalities detected during the auscultation process. The two widely used publicly available phonocardiogram (PCG) datasets…

We apply principal component analysis (PCA) to a set of electrical output signals from a commercially available superconducting nanowire single-photon detector (SNSPD) to investigate their photon-number-resolving capability. We find that…

Most of exotic resonances observed in the past decade appear as peak structure near some threshold. These near-threshold phenomena can be interpreted as genuine resonant states or enhanced threshold cusps. Apparently, there is no…

High Energy Physics - Phenomenology · Physics 2020-08-05 Denny Lane B. Sombillo , Yoichi Ikeda , Toru Sato , Atsushi Hosaka