| Autor: |
Madukaife, MS, Oladugba, AV |
| Jazyk: |
angličtina |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Global Journal of Pure and Applied Sciences; Vol 17, No 4 (2011); 509-515 |
| ISSN: |
1118-0579 |
| Popis: |
In the search for a D-optimal exact design using the combinatorial iterative technique introduced by Onukogu and Iwundu, 2008, all the support points that make up the experimental region are grouped into H concentric balls according to their distances from the centre. Any selection of N support points from the balls defines a class of designs N x . The technique requires the identification of best D-optimal exact design(s) within a class and moves progressively from one class to another with a higher determinant value until it reaches an optimum. Quite often, each class contains several N-point designs and a hundred per cent search is required to identify best design(s) within a class. A set of rules for selecting best design(s) within a class, alternative to one hundred per cent search is developed. The effectiveness of the rules is measured by the reduction in the number of determinant evaluations relative to a hundred per cent search |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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