Results 21 to 30 of about 2,237,659 (305)

Blind Source Separation Method for Frequency-Hopping Signal in Synchronous Networking Under Underdetermined Condition [PDF]

open access: yesJisuanji gongcheng, 2020
To implement blind source separation of frequency-hopping signals in synchronous networking under underdetermined conditions,this paper proposes a frequency-hopping signal separation method based on the parallel factor analysis model and subspace ...
WANG Shaobo, GUO Ying, SUI Ping, LI Hongguang, YANG Xin
doaj   +1 more source

Double-Matrix Decomposition Image Steganography Scheme Based on Wavelet Transform with Multi-Region Coverage

open access: yesEntropy, 2022
On the basis of ensuring the quality and concealment of steganographic images, this paper proposes a double-matrix decomposition image steganography scheme with multi-region coverage, to solve the problem of poor extraction ability of steganographic ...
Ping Pan   +3 more
doaj   +1 more source

A variant of the reciprocal super Catalan matrix

open access: yesSpecial Matrices, 2015
Recently Prodinger [8] considered the reciprocal super Catalan matrix and gave explicit formulæ for its LU-decomposition, the LU-decomposition of its inverse, and obtained some related matrices. For all results, q-analogues were also presented.
Kılıç Emrah   +2 more
doaj   +1 more source

CS Decomposition Based Bayesian Subspace Estimation [PDF]

open access: yes, 2012
In numerous applications, it is required to estimate the principal subspace of the data, possibly from a very limited number of samples. Additionally, it often occurs that some rough knowledge about this subspace is available and could be used to improve
Besson, Olivier   +2 more
core   +1 more source

Singular value representation of the coherence Poincaré sphere

open access: yesJournal of the European Optical Society-Rapid Publications, 2022
The so-called coherence Poincaré sphere was recently introduced for geometrical visualization of the state of two-point spatial coherence of a random electromagnetic beam. The formalism and its interpretation strongly utilized a specific decomposition of
Laatikainen Jyrki   +3 more
doaj   +1 more source

The Roles of Majorization and Generalized Triangular Decomposition in Communication and Signal Processing [PDF]

open access: yes, 2011
Signal processing is an art that deals with the representation, transformation, and manipulation of the signals and the information they contain based on their specific features.
Weng, Ching-Chih
core   +1 more source

Multi‐view registration based on weighted LRS matrix decomposition of motions

open access: yesIET Computer Vision, 2019
Recently, the low‐rank and sparse (LRS) matrix decomposition has been introduced as an effective mean to solve the multi‐view registration. It views each available relative motion as a block element to reconstruct one sparse matrix, which then is used to
Congcong Jin   +5 more
doaj   +1 more source

Characteristics of Decomposition Powers of L-Band Multi-Polarimetric SAR in Assessing Tree Growth of Industrial Plantation Forests in the Tropics

open access: yesRemote Sensing, 2012
A decomposition scheme was applied to ALOS/PALSAR data obtained from a fast-growing tree plantation in Sumatra, Indonesia to extract tree stem information and then estimate the forest stand volume.
Yoshio Yamaguchi   +6 more
doaj   +1 more source

Some Combinatorial Results on the Factor Group K (G)

open access: yesJournal of Kufa for Mathematics and Computer, 2016
character matrix ( ) from the character table of and finding the invariant factors of this matrix, the primary decomposition of the factor group where is determined.
Manal Najy Yagoob, Ahmed Abed Ali Omran
doaj   +1 more source

Improved ALS Online Recommendation Algorithm with Missing Data Modeling [PDF]

open access: yesJisuanji gongcheng, 2018
Implicit feedback has data noise and lacks negative feedback.When using matrix decomposition method to train recommendation model,the feature extraction is not clear and the recommendation result is skewed.Aiming at these problems,an improved Alternating
XING Yuying,XIA Hongbin,WANG Han.
doaj   +1 more source

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