On Some E-Optimal Block Designs.
A. Dey, Ashish Das (1989)
Metrika
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A. Dey, Ashish Das (1989)
Metrika
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J.P. Morgan (1997)
Metrika
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M. Jacroux (1991)
Metrika
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Bronisław Ceranka, Małgorzata Graczyk (2013)
Biometrical Letters
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In this paper, we study the relationships between regular A-optimal spring balance weighing designs and regular A-optimal chemical balance weighing designs. We give the basic relation between these designs in the case where the errors are uncorrelated and they have different variances. We give some examples of methods of construction of such designs.
E. Sonnemann (1985)
Metrika
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S. Bagchi (1988)
Metrika
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A. Dey, A. Das (1991)
Metrika
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S. Gupta, S. Kageyama (1991)
Metrika
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Bronisław Ceranka, Małgorzata Graczyk (2003)
Kybernetika
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The paper studies the estimation problem of individual weights of objects using a chemical balance weighing design under the restriction on the number times in which each object is weighed. Conditions under which the existence of an optimum chemical balance weighing design for objects implies the existence of an optimum chemical balance weighing design for objects are given. The existence of an optimum chemical balance weighing design for objects implies the existence of an optimum...
B. Heiligers (1991)
Metrika
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Krystyna Katulska, Łukasz Smaga (2016)
Kybernetika
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In this paper we consider D-optimal and highly D-efficient chemical balance weighing designs. The errors are assumed to be equally non-negatively correlated and to have equal variances. Some necessary and sufficient conditions under which a design is D*-optimal design (regular D-optimal design) are proved. It is also shown that in many cases D*-optimal design does not exist. In many of those cases the designs constructed by Masaro and Wong (2008) and some new designs are shown to be...
Ryszard Walkowiak (2015)
Biometrical Letters
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This paper considers block designs and row-column designs where the information matrix C has two different nonzero eigenvalues, one of multiplicity 1 and the other of multiplicity h−1, where h is the rank of the matrix C. It was found that for each such design there exists a diagonal positive definite matrix X such that the design is X −1-balanced.
Rainer Schwabe, Weng Kee Wong (1997)
Metrika
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