Search

Start Over Creator Graczyk, Małgorzata

1. A-optimal biased spring balance weighing design

Creator:
Graczyk, Małgorzata
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
A-optimal design, biased design, and spring balance weighing design
Language:
English
Description:
In this paper we study the problem of estimation of individual measurements of objects in a biased spring balance weighing design under assumption that the errors are uncorrelated and they have different variances. The lower bound for the variance of each of the estimated measurements for this design and the necessary and sufficient conditions for this lower bound to be attained are given. The incidence matrices of the balanced incomplete block designs are used for construction of the A-optimal biased spring balance weighing design.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2. Robustness optimal spring balance weighing designs for estimation total weight

Creator:
Ceranka, Bronisław and Graczyk, Małgorzata
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
robustness, spring balance weighing design, and total weight
Language:
English
Description:
In this paper we develop the theory of spring balance weighing designs with non-positive correlated errors for that the lower bound of the variance of estimated total weight is attained.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public