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arXiv 1203.5233stat.ME
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小面积收缩估算

Small Area Shrinkage Estimation

G. Datta, M. Ghosh

摘要:

公共和私营部门都日益感到需要进行小面积估计,以便制定其战略计划。现在人们普遍认识到,由于标准误和变异系数很大,直接小面积调查的估计数非常不可靠。这背后的原因是,调查通常是为了在比小区域更高的地理水平上达到特定的准确度。由于缺乏额外资源,几乎必须使用同样的数据来进行小面积的估计。例如,如果一项调查旨在估计一个州的人均收入,则需要使用相同的调查数据来为该州的县、县以下和人口普查部门提供类似的估计。因此,小面积估计必然需要明确的,或至少是隐含的,使用模型来连接这些地区。通过从类似的邻近地区“借用力量”,发现了改进的小面积估计。

英文摘要:

The need for small area estimates is increasingly felt in both the public and private sectors in order to formulate their strategic plans. It is now widely recognized that direct small area survey estimates are highly unreliable owing to large standard errors and coefficients of variation. The reason behind this is that a survey is usually designed to achieve a specified level of accuracy at a higher level of geography than that of small areas. Lack of additional resources makes it almost imperative to use the same data to produce small area estimates. For example, if a survey is designed to estimate per capita income for a state, the same survey data need to be used to produce similar estimates for counties, subcounties and census divisions within that state. Thus, by necessity, small area estimation needs explicit, or at least implicit, use of models to link these areas. Improved small area estimates are found by "borrowing strength" from similar neighboring areas.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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