Optimal Stratification Using Random Search Method in Agricultural Surveys
نویسنده
چکیده
Lednicki and Wieczorkowski (2003) presented a method of stratification in subpopulations, based on the paper of Rivest (2002), which leads to obtain a fixed precision of a considered estimator for the particular subpopulations. They solved such a problem using a numerical simplex method of Nelder and Mead (1965). Because it is not the best solution of the question, (in a sense of an optimality of the simplex method in multivariate optimization problems), the algorithm of random search method is proposed in the paper as a more efficient way of considered stratification. Moreover, a simple modification of a data structure is proposed when using the optimization. Five numerical experiments were carried out to compare the proposed algorithm with the simplex method using data from Agricultural Census 2002 regarding the cereals area.
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