阐述最优化问题。在对设计空间进行一些初始抽样后，选择并应用一种合适的最优化技术。
Formulate the optimization problem. Select and apply an appropriate optimization technique after some initial sampling of the design space.
对于最优统计设计，本文提出了遗传算法(GA)以及边界抽样策略。
Genetic algorithms (GA) together with a boundary sampling strategy are proposed for optimal statistical design.
对简单随机不放回抽样，在总体非敏感属性个体比例未知的情况下，给出了两个子样本容量的最优配置。
Under simple random sampling scheme without replacement and unknown proportion of population possessing neutral attribute, the optimal allocation of sizes of two sub-samples is given.
该文讨论了为PPS抽样的二相抽样时，其样本单位数的最优设计问题。并结合实例进行了分析。
In this paper, we given an approach for optimum design of sample sire in two-phase sampling for PPS, and discussed an example.
提出了在林业信息资料的抽样调查中、最优样本轮换率的问题。
The question of the best rate of the sample book's rotation in the sampling survey of forestry information material is arisen.
本文提出了一种在光学自动设计中寻求全局最优化的新方法：随机制抽样法。
Exploring an approach to the search fot global minmum in the multidimensional design space of a lens design with the method of random sampling is presented in the paper.
包括分层抽样下样本轮换的估计量公式和最优样本轮换率的确定方法。再接着利用前面介绍的理论知识，结合上海市城镇住房空置率抽样调查数据进行实证分析。
Based on the theory and method introduced before, this paper applied the rotation models to compute the sample rotation rate of sampling survey on vacancy rate of households in Shanghai.
包括分层抽样下样本轮换的估计量公式和最优样本轮换率的确定方法。再接着利用前面介绍的理论知识，结合上海市城镇住房空置率抽样调查数据进行实证分析。
Based on the theory and method introduced before, this paper applied the rotation models to compute the sample rotation rate of sampling survey on vacancy rate of households in Shanghai.
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