An Introduction to Optimality Criteria and Some Results on Optimal Block Design
An Introduction to Optimality Criteria and Some Results on Optimal Block Design
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最优性准则简介和最优块设计的一些结果
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发表时间:
2002
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通讯作者:
Ashish Das
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文献类型:
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作者:
Ashish Das
X ′Xθ = X ′Y. Here, X ′X is called the “information matrix” of θ and var(θ) = σ(X ′X)−1 (provided Rank(X) = t). Let l′θ be an estimable linear parametric function. Then var(l′θ) = σ2l′(X ′X)−l. We choose a design d, with design matrix Xd, whose information matrix X ′ dXd is “large” (equivalently, (X ′ dXd) − is “small”) in some sense. Now, suppose we are interested in a component θ1 of θ. We write