By utilizing the equivalence theorem and Descartes's rule of signs, we construct D-optimal designs for a weighted polynomial regression model of degree k, with speciΓΏc weight function w(x) = 1=(a 2 -x 2 ) , on the compact interval [ -1; 1]. The main result shows that in most cases, the number of sup
D-optimal designs for weighted polynomial regression
β Scribed by Fu-Chuen Chang; Ge-Chen Lin
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 672 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0378-3758
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β¦ Synopsis
Using an Equivalence Theorem and the theory of Sturm Liouville systems, we determine the D-optimal designs for some classes of weighted polynomial regression of degree d on the interval [-1., 1]. We also show that the number of the optimal support points for such models is d+ 1. and that the optimal support points can be computed through a specific eigenvalue of a certain band matrix. Some results of Karlin and Studden (Ann. Math. Statist. 37 (1996), 783 815) turn out to be special cases of our results.
π SIMILAR VOLUMES
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