Results 31 to 40 of about 421,329 (326)

On exact solution of a classical 3D integrable model [PDF]

open access: yes, 1999
We investigate some classical evolution model in the discrete 2+1 space-time. A map, giving an one-step time evolution, may be derived as the compatibility condition for some systems of linear equations for a set of auxiliary linear variables.
Boos H.E.   +14 more
core   +2 more sources

On Bayesian Curve Fitting via Auxiliary Variables [PDF]

open access: yesJournal of Computational and Graphical Statistics, 2010
In this article we revisit the auxiliary variable method introduced in Smith and kohn (1996) for the fitting of P-th order spline regression models with an unknown number of knot points. We introduce modifications which allow the location of knot points to be random, and we further consider an extension of the method to handle models with non-Gaussian ...
Fan, Y.   +2 more
openaire   +2 more sources

Machine learning for percolation utilizing auxiliary Ising variables [PDF]

open access: yesPhysical Review E, 2022
10 pages, 8 ...
Junyin Zhang   +4 more
openaire   +3 more sources

An Efficient General Family of Estimators for Population Mean in the Presence of Non-Response

open access: yesJournal of Mathematical and Fundamental Sciences, 2017
This paper presents a new general family of estimators to estimate the population mean of study variable y in the presence of non-response when utilizing a known coefficient of variation of study variable y.
Thanapanang Rachokarn, Nuanpan Lawson
doaj   +1 more source

Spatial mapping of soil respiration using auxiliary variables. A small scale study [PDF]

open access: yesJournal of Central European Agriculture, 2021
Soil respiration is a significant contributor to the global emissions of CO2 and is governed by many soil factors. Reliable estimates of CO2 emission on different scales (e.g., field, regional level) are hard to obtain due to the expressed spatial and ...
Eszter TÓTH   +10 more
doaj   +1 more source

Dexterous Estimation of Population Mean in Survey Sampling Under Non-Response Error [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2019
In this scripture, we ponder the problem of efficient estimation of population mean of study variable utilizing information on highly correlated auxiliary variables under the presence of non-response on either of the variables.
S. K. Yadav, O. P. Yadav, D. K. Yadav
doaj   +1 more source

Multiple imputation of missing data under missing at random: including a collider as an auxiliary variable in the imputation model can induce bias

open access: yesFrontiers in Epidemiology, 2023
Epidemiological studies often have missing data, which are commonly handled by multiple imputation (MI). In MI, in addition to those required for the substantive analysis, imputation models often include other variables (“auxiliary variables”). Auxiliary
Elinor Curnow   +9 more
doaj   +1 more source

On unfolded approach to off-shell supersymmetric models

open access: yesPhysics Letters B, 2023
We construct and analyze unfolded off-shell systems for chiral and vector supermultiplets using multispinor formalism and external currents. We find that auxiliary variables of multispinor formalism allow for the interesting reorganization of the ...
N.G. Misuna
doaj   +1 more source

Secure Communication using Compound Signal from Generalized Synchronizable Chaotic Systems [PDF]

open access: yes, 1997
By considering generalized synchronizable chaotic systems, the drive-auxiliary system variables are combined suitably using encryption key functions to obtain a compound chaotic signal.
Lakshmanan, M., Murali, K.
core   +2 more sources

Comparisons of Some Weighting Methods for Non-response Adjustment

open access: yesLithuanian Journal of Statistics, 2015
Sample and population auxiliary information have been demonstrated to be useful and yield approximately equal resultsin large samples. Several functional forms of weights are suggested in the literature.
Bernardo Jo˜ao Rota, Thomas Laitila
doaj   +1 more source

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