Results 11 to 20 of about 4,555 (128)

New Results Regarding the Construction Method for D‑optimal Chemical Balance Weighing Designs

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2020
We study an experiment in which we determine unknown measurements of p objects in n weighing operations according to the model of the chemical balance weighing design. We determine a design which is D‑optimal. For the construction of the D‑optimal design,
Bronisław Ceranka, Małgorzata Graczyk
doaj   +1 more source

On incomplete and balanced incomplete block designs [PDF]

open access: yesProceedings of the American Mathematical Society, 1963
By an incomplete block design we will mean an arrangement of v different varieties of objects in b distinct blocks or sets such that a block does not contain all the varieties and a variety appears at most once in a block. An incomplete block design which satisfies two extra conditions, viz.
openaire   +2 more sources

On the Classification of Splitting (v, u×c, λ) BIBDs

open access: yesCybernetics and Information Technologies, 2018
The (v, u×c, λ)-splitting balanced incomplete block designs correspond to c-splitting authentication codes. We classify splitting balanced incomplete block designs with definite parameters.
Zhelezova Stela
doaj   +1 more source

Symmetric Balanced Incomplete Block Designs (Sbibd) And Construction of Hadamard Rhotrices [PDF]

open access: yesMATEC Web of Conferences
Balanced Incomplete Block Designs (BIBD) are the designs obtained from the arrangement of symbols in blocks following established rules and satisfying relevant necessary conditions.
Manivilasam Madhusoodanan Nair   +2 more
doaj   +1 more source

A Regular D‑optimal Weighing Design with Negative Correlations of Errors

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2019
The issues concerning optimal estimation of unknown parameters in the model of chemical balance weighing designs with negative correlated errors are considered. The necessary and sufficient conditions determining the regular D‑optimal design and some new
Małgorzata Graczyk, Bronisław Ceranka
doaj   +1 more source

Statistical Methods to Support Difficult Diagnoses

open access: yesDiagnostics, 2021
Far too often, one meets patients who went for years or even decades from doctor to doctor without obtaining a valid diagnosis. This brings pain to millions of patients and their families, not to speak of the enormous costs.
Guenter F. Pilz   +3 more
doaj   +1 more source

Deterministic Construction of Measurement Matrices Based on Bose Balanced Incomplete Block Designs

open access: yesIEEE Access, 2018
Compressed sensing is a novel information collection theory. Compared with the Nyquist sampling theorem, compressed sensing can obtain all the information of a signal with very few samples.
Liu Haiqiang   +4 more
doaj   +1 more source

Highly D‑efficient Weighing Design and Its Construction

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2017
In this paper, some aspects of design optimality on the basis of spring balance weighing designs are considered. The properties of D‑optimal and D‑efficiency designs are studied.
Bronisław Ceranka, Małgorzata Graczyk
doaj   +1 more source

Three-way cross designs for test lines vs. control line comparisons

open access: yesElectronic Journal of Plant Breeding, 2016
The selection of appropriate parental lines and crossing plans are the most important keys for a successful breeding programme. Three-way crosses are intermediate between single and double cross hybrids and hence are economical with respect to ...
Mohd Harun   +3 more
doaj   +1 more source

Comparison Between some Methods of Tackling the Lack of Experimental Units Needed for Application of Factorial Experiments [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2011
Most of the time the researcher confronts a decrease in the experimental units required when applying a certain design, this problem appears especially when conducting the factorial experiments which mostly need great numbers of experimental units, to ...
doaj   +1 more source

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