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
Ashish Das
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作者:
Ashish Das

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X ' xθ = X ' y。这里,X ' X被称为θ的“信息矩阵”,var(θ) = σ(X ' X)−1(假设Rank(X) = t)。设l ' θ是一个可估计的线性参数函数。则var(l ' θ) = σ2l ' (X ' X)−1。我们选择一个设计d,其设计矩阵Xd,其信息矩阵X ' dXd在某种意义上是“大”的(等价地,(X ' dXd)−是“小”的)。现在,假设我们对θ的分量θ1感兴趣。我们写
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