Results 1 to 10 of about 46,112 (141)
ON D-OPTIMAL CHEMICAL BALANCE WEIGHING DESIGNS [PDF]
Acta Universitatis Lodziensis. Folia Oeconomica, 2015 The paper deals with the problem of determining the chemical balance weighing designs satisfying the criterion of D-optimality under assumption that the measurement errors are equal correlated and they have the same variances.
Bronisław Ceranka, Małgorzata Graczyk
doaj +7 more sources
CONSTRUCTION METHOD OF A-OPTIMAL CHEMICAL BALANCE WEIGHING DESIGNS [PDF]
Acta Universitatis Lodziensis. Folia Oeconomica, 2015 Here, we study the design in that we determine unknown measurements of p objects by used of n measurement operations. For that reason we consider the chemical balance weighing design under assumption that the measurement errors are uncorrelated and they ...
Bronisław Ceranka, Małgorzata Graczyk
doaj +6 more sources
Optimum Chemical Balance Weighing Design under Certain Condition [PDF]
, 2009 2000 Mathematics Subject Classification: 62K05, 05B05.The problem of estimation of unknown weights of p objects is considered. The experiment is carried out according to the standard Gauss-Markoff model of the chemical balance weighing design.
Ceranka, Bronislaw, Graczyk, Malgorzata
core +2 more sources
New Results Regarding the Construction Method for D‑optimal Chemical Balance Weighing Designs
Acta 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
A Regular D‑optimal Weighing Design with Negative Correlations of Errors
Acta 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
On Highly D-Efficient Designs with Nonnegatively Correlated Observations
Revstat Statistical Journal, 2017 In the most difficult case where the number of observations n ≡ 3 (mod 4), high D-efficiency of certain chemical balance weighing designs under completely symmetric covariance matrix of errors is shown. It is also proved that D-optimal design may depend
Krystyna Katulska , Lukasz Smaga
doaj +1 more source
A-optimal chemical balance weighing design under certain condition
Advances in Methodology and Statistics, 2007 The paper is studying the estimation problem of individual weights of \(p\) objects using the design matrix \(\mathbf{X}\) of the A-optimal chemical balance weighing design under the restriction \(p_1 + p_2 = q \leq p\), where \(p_1\) and \(p_2\) represent the number of objects placed on the left pan and on the right pan, respectively, in each of the ...
Ceranka, Bronisław +1 more
openaire +4 more sources
D-optimal chemical balance weighing designs with autoregressive errors [PDF]
Metrika, 2012 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Katulska, Krystyna, Smaga, Łukasz
openaire +2 more sources
The 1967 Patent Law Debate—First-to-Invent vs. First-to-File [PDF]
, 1967 United States patent law has traditionally been based on the proposition that the first inventor, not the first person to file a patent application, is the only person entitled to a patent. Nevertheless, the President\u27s Commission on the Patent System
Frost, George E.
core +3 more sources
Computing D-Optimum Weighing Designs: Where Statistics, Combinatorics, and Computation Meet [PDF]
, 1983 This paper surveys results and techniques for computing D-optimum weighing ...
Galil, Zvi
core +2 more sources