Results 21 to 30 of about 30,039 (240)

TRUST MODEL FOR SOCIAL NETWORK USING SINGULAR VALUE DECOMPOSITION [PDF]

Interdisciplinary Description of Complex Systems, 2016
For effective interactions to take place in a social network, trust is important. We model trust of agents using the peer to peer reputation ratings in the network that forms a real valued matrix.
Davis Bundi Ntwiga, Patrick Weke, Michael Kiura Kirumbu   +2 more
doaj   +1 more source

A Partial Discharge Pulse Extraction and Denoising Technology Based on Random Singular Value Decomposition

Zhongguo dianli, 2021
Partial discharge signals are prone to missed detection under low signal-to-noise ratios, and the traditional singular value decomposition algorithm requires massive calculations when extracting partial discharge pulses.
Li WANG, Wei ZHANG, Dingnan LUO
doaj   +1 more source

Compression Digital Video Files using Singular Value Decomposition [PDF]

Al-Rafidain Journal of Computer Sciences and Mathematics, 2018
The development of data transfer technologies over multimedia or communications networks needs to be addressed to large storage units so that they can be sent and received in a packaged manner.
Hasan Ahmed
doaj   +1 more source

Accelerated random noise suppression of seismic data using compressed singular-value decomposition

矿业科学学报
Random noise is one of the common background noises in seismic data, and its attenuation will directly affect the signal-to-noise ratio of seismic data, which is of great significance to improve the quality of seismic data.
SUN Chao, LIN Peng, LIU Yulin, WANG Xiudong, XU Dongjing   +4 more
doaj   +1 more source

Split-and-Combine Singular Value Decomposition for Large-Scale Matrix

Journal of Applied Mathematics, 2013
The singular value decomposition (SVD) is a fundamental matrix decomposition in linear algebra. It is widely applied in many modern techniques, for example, high- dimensional data visualization, dimension reduction, data mining, latent semantic analysis,
Jengnan Tzeng
doaj   +1 more source

The Singular Value Decomposition over Completed Idempotent Semifields

Mathematics, 2020
In this paper, we provide a basic technique for Lattice Computing: an analogue of the Singular Value Decomposition for rectangular matrices over complete idempotent semifields (i-SVD).
Francisco J. Valverde-Albacete, Carmen Peláez-Moreno   +1 more
doaj   +1 more source

Identification of Seismic Reflections Using Singular Value Decomposition [PDF]

Modeling, Identification and Control, 1986
Singular value decomposition (SVD) is applied to the identification of seismic reflections by using two different models: the impulse response model where a seismic trace is assumed to consist of a known signal pulse convolved with a reflection ...
Bjørn Ursin, Yuying Zheng
doaj   +1 more source

A Modified Singular Value Decomposition (MSVD) Approach for the Enhancement of CCTV Low-Quality Images

IEEE Access
Image enhancement and reconstruction is an important field of research in digital image analysis. To increase the quality of low-contrast images, a variety of image-enhancing technologies are available.
Shahzada Fahad, Sami Ur Rahman, Fakhre Alam, Muhammad Yousaf, Faten S. Alamri, Naveed Abbas, Saeed Ali Bahaj, Amjad R. Khan   +7 more
doaj   +1 more source

Feature extraction of vibration signal of roadheader based on singular value decompositio

Gong-kuang zidonghua, 2019
In view of difficulty of dynamic load identification of roadheader, feature extraction method of vibration signal of roadheader based on singular value decomposition was proposed.
ZHANG Linfeng, TIAN Muqin, SONG Jiancheng, HE Ying, FENG Junling, YANG Xiang   +5 more
doaj   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source