Results 11 to 20 of about 309,261 (277)

Consistencies of the capability indices based on the normal probability distribution [PDF]

open access: yesGestão & Produção, 2023
: Capability analysis seeks to estimate the probability that a process will produce compliant products. The capability indices are dimensionless parameters that measure how well the process can meet specifications.
Jaqueline Akemi Suzuki Sediyama   +3 more
doaj   +1 more source

Efficient Tuning-Free l1-Regression of Nonnegative Compressible Signals

open access: yesFrontiers in Applied Mathematics and Statistics, 2021
In compressed sensing the goal is to recover a signal from as few as possible noisy, linear measurements with the general assumption that the signal has only a few non-zero entries.
Hendrik Bernd Petersen   +3 more
doaj   +1 more source

A note on optimal Hermite interpolation in Sobolev spaces

open access: yesJournal of Inequalities and Applications, 2022
This paper investigates the optimal Hermite interpolation of Sobolev spaces W ∞ n [ a , b ] $W_{\infty }^{n}[a,b]$ , n ∈ N $n\in \mathbb{N}$ in space L ∞ [ a , b ] $L_{\infty }[a,b]$ and weighted spaces L p , ω [ a , b ] $L_{p,\omega }[a,b]$ , 1 ≤ p < ∞ $
Guiqiao Xu, Xiaochen Yu
doaj   +1 more source

Ecological stability and plasticity of potato varieties in Polissia

open access: yesPlant Varieties Studying and Protection, 2015
Purpose. Substantiating the selection of potato varieties for their ecological plasticity and stability to grow in Polissia. Methods. Field, laboratory, analitycal and statystical ones. Results.
Е. Р. Ермантраут   +3 more
doaj   +1 more source

Proposed Hybrid Sparse Adaptive Algorithms for System Identification

open access: yesAl-Khawarizmi Engineering Journal, 2017
For sparse system identification,recent suggested algorithms are  -norm Least Mean Square (  -LMS), Zero-Attracting LMS (ZA-LMS), Reweighted Zero-Attracting LMS (RZA-LMS), and p-norm LMS (p-LMS) algorithms, that have modified the cost function of the ...
Mahmood A. K Abdulsattar   +1 more
doaj   +1 more source

Calculation of signal spectrum by means of stochastic inversion [PDF]

open access: yesAnnales Geophysicae, 2010
The standard method of calculating the spectrum of a digital signal is based on the Fourier transform, which gives the amplitude and phase spectra at a set of equidistant frequencies from signal samples taken at equal intervals.
T. Nygrén, Th. Ulich
doaj   +1 more source

Exponential sums deviating least from zero

open access: yesIndagationes Mathematicae (Proceedings), 1973
AbstractIn this paper exponential sums of the type Y1ew1x+Y2ew2x+…+Ynewnx where w1, w2 …, wn are pairwise distinct real numbers and Y1, Y2, …, Yn are polynomials in a real variable x of degree μ1, μ2, …, μn (non-negative integers) respectively are considered.
de Bruin, M.G, van Rossum, H
openaire   +2 more sources

Estimation of Error Variance-Covariance Parameters Using Multivariate Geographically Weighted Regression Model

open access: yesAbstract and Applied Analysis, 2020
The Multivariate Geographically Weighted Regression (MGWR) model is a development of the Geographically Weighted Regression (GWR) model that takes into account spatial heterogeneity and autocorrelation error factors that are localized at each observation
Sri Harini
doaj   +1 more source

Long-term taxonomic and functional stability of the gut microbiome from human fecal samples

open access: yesScientific Reports, 2023
Appropriate storage of fecal samples is a critical step for unbiased analysis in human microbiome studies. The purpose of this study was to evaluate the stability of the fecal microbial community for up to 18 months. Ten healthy volunteers provided fecal
Jae Hyun Kim   +6 more
doaj   +1 more source

On the Accuracy and Consistency of Quintuple Collocation Analysis of In Situ, Scatterometer, and NWP Winds

open access: yesRemote Sensing, 2022
The accuracy and consistency of a quintuple collocation analysis of ocean surface vector winds from buoys, scatterometers, and NWP forecasts is established.
Jur Vogelzang, Ad Stoffelen
doaj   +1 more source

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