scholarly journals Some remarks about optimum chemical balance weighing design for p = v + 1 objects

2009 ◽  
Vol 6 (1) ◽  
Author(s):  
Bronisław Ceranka ◽  
Małgorzata Graczyk
Keyword(s):  
Optimum Design ◽  
Measurement Errors ◽  
Chemical Balance ◽  
Existence Conditions ◽  
Optimum Chemical

The problem of the estimation of unknown weights of \(p = v + 1\) objects in the model of the chemical balance weighing design under the assumption that the measurement errors are uncorrelated and they have different variances is considered. The existence conditions determining the optimum design are presented.

scholarly journals ON D-OPTIMAL CHEMICAL BALANCE WEIGHING DESIGNS

2015 ◽  
Vol 1 (311) ◽  
Author(s):  
Bronisław Ceranka ◽  
Małgorzata Graczyk
Keyword(s):  
Optimal Design ◽  
Measurement Errors ◽  
Block Designs ◽  
Incomplete Block ◽  
Chemical Balance ◽  
Incidence Matrices ◽  
Balanced Incomplete Block Designs ◽  
Construction Methods ◽  
Existence Conditions ◽  
Balanced Incomplete Block

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. The existence conditions and the form of the optimal design are given. Moreover, some construction methods of the design matrices based on the incidence matrices of the balanced incomplete block designs and ternary balanced block designs are presented. Any example of construction is given.

scholarly journals CONSTRUCTION METHOD OF A-OPTIMAL CHEMICAL BALANCE WEIGHING DESIGNS

2015 ◽  
Vol 3 (314) ◽  
Author(s):  
Bronisław Ceranka ◽  
Małgorzata Graczyk
Keyword(s):  
Optimal Design ◽  
Measurement Errors ◽  
Construction Method ◽  
Block Designs ◽  
Chemical Balance ◽  
Incidence Matrices ◽  
New Construction

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 have the same variances. We give new construction method of the A-optimal chemical balance weighing design based on the incidence matrices of the balanced bipartite weighing designs and the ternary balanced block designs. The consequence of the proposed method is widening of possible classes in that A-optimal design exists.

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