D-optimal and highly D-efficient designs with non-negatively correlated observations

نویسندگان

  • Krystyna Katulska
  • Lukasz Smaga
چکیده

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 highly D-efficient. Theoretical results are accompanied by numerical search, suggesting D-optimality of designs under consideration.

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عنوان ژورنال:
  • Kybernetika

دوره 52  شماره 

صفحات  -

تاریخ انتشار 2016