Results 1 to 10 of about 314,167 (189)

Low-rank matrix approximations over canonical subspaces

Journal of Numerical Analysis and Approximation Theory, 2020
In this paper we derive closed form expressions for the nearest rank-\(k\) matrix on canonical subspaces.    We start by studying three kinds of subspaces.  Let \(X\) and \(Y\) be a pair of given matrices. The first subspace contains all the \(m\times
Achiya Dax
doaj   +7 more sources

pyDRMetrics - A Python toolkit for dimensionality reduction quality assessment

Heliyon, 2021
High-dimensional data are pervasive in this bigdata era. To avoid the curse of the dimensionality problem, various dimensionality reduction (DR) algorithms have been proposed.
Yinsheng Zhang, Qian Shang, Guoming Zhang   +2 more
doaj   +1 more source

FRA-Based Parameter Estimation for Fault Diagnosis of Three-Phase Voltage-Source Inverters

IEEE Access, 2023
This paper presents a fault detection and location identification method for single and double switch Open Circuit Fault (OCF) in three phase voltage source inverters (VSIs) based on current model parameter estimation.
Yu Luo, Li Zhang, Chunyang Chen, Kang Li, Tianjian Yu, Kaidi Li   +5 more
doaj   +1 more source

A comparative study of Machine Learning-based classification of Tomato fungal diseases: Application of GLCM texture features

Heliyon, 2023
Globally, agriculture remains an important source of food and economic development. Due to various plant diseases, farmers continue to suffer huge yield losses in both quality and quantity.
Chimango Nyasulu, Awa Diattara, Assitan Traore, Cheikh Ba, Papa Madiallacké Diedhiou, Yakhya Sy, Hind Raki, Diego Hernán Peluffo-Ordóñez   +7 more
doaj   +1 more source

Modeling and Control of Modular Multilevel Matrix Converter for Low-Frequency AC Transmission

Energies, 2023
The modular multilevel matrix converter (M3C) is the core component in low-frequency AC (LFAC) transmission, which is a competitive scheme for offshore wind power integration.
Zheren Zhang, Yanqiu Jin, Zheng Xu
doaj   +1 more source

ITRPCA: a new model for computational drug repositioning based on improved tensor robust principal component analysis

Frontiers in Genetics, 2023
Background: Drug repositioning is considered a promising drug development strategy with the goal of discovering new uses for existing drugs. Compared with the experimental screening for drug discovery, computational drug repositioning offers lower cost ...
Mengyun Yang, Mengyun Yang, Bin Yang, Guihua Duan, Jianxin Wang   +4 more
doaj   +1 more source

Desain Penilaian Risiko Privasi pada Aplikasi Seluler Melalui Model Machine Learning Berbasis Ensemble Learning dan Multiple Application Attributes

Jurnal Teknologi Informasi dan Ilmu Komputer, 2023
Aplikasi berbasis Android banyak dikembangkan dan tersedia secara bebas di berbagai sumber aplikasi karena sistem operasi Android yang bersifat open-source.
R. Ahmad Imanullah Zakariya, Kalamullah Ramli   +1 more
doaj   +3 more sources

A helicoidal transfer matrix model for inhomogeneous DNA melting [PDF]

, 2006
An inhomogeneous helicoidal nearest-neighbor model with continuous degrees of freedom is shown to predict the same DNA melting properties as traditional long-range Ising models, for free DNA molecules in solution, as well as superhelically stressed DNA ...
D. Poland, Tom Michoel, W. Press, Yves Van de Peer   +3 more
core   +2 more sources

Spin Ferroquadrupolar Order in the Nematic Phase of FeSe [PDF]

, 2016
We provide evidence that spin ferroquadrupolar (FQ) order is the likely ground state in the nonmagnetic nematic phase of stoichiometric FeSe. By studying the variational mean-field phase diagram of a bilinear-biquadratic Heisenberg model up to the 2nd ...
Hu, Wen-Jun, Nevidomskyy, Andriy H., Wang, Zhentao   +2 more
core   +2 more sources

Human Hand Recognition Using IPCA-ICA Algorithm

EURASIP Journal on Advances in Signal Processing, 2007
A human hand recognition system is introduced. First, a simple preprocessing technique which extracts the palm, the four fingers, and the thumb is introduced.
Wassim Abi Nader, William Kobersy, Issam Dagher   +2 more
doaj   +2 more sources