Statistical inference based on complex survey designs using rank information and order statistics

使用排名信息和顺序统计数据基于复杂的调查设计进行统计推断

• 批准号: RGPIN-2015-04157
• 负责人: JafariJozani, Mohammad
• 金额: $ 1.46万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=589629
• 关键词: Statistical; inference; based; complex; survey

In many experiments, an important factor in implementing a statistically sound sampling design is the cost of taking measurements from sampling units. Sometimes researchers have access to some auxiliary information, or results of earlier surveys, expert-opinion knowledge, or inexpensive and useful measurements from the population that can be used to easily rank sampling units prior to taking final measurements on them. For example, consider the problem of estimation of bone mineral density in a human population. Subjects for such a study are plentiful, but measurement of bone mineral density via dual x-ray absorptiometry on the selected subjects is expensive. Thus, it is important to minimize the number of measurements required for such a study without reducing the amount of reliable information obtained about the bone mineral density makeup of the population. One successful strategy is to use expert-opinion knowledge on a large number of sampling units to identify more representative samples from the population from which the expensive bone mineral density measurement should be collected via dual x-ray absorptiometry. Rank-based sampling  designs provide a collection of techniques to obtain and analyze these expensive measurements with the help of inexpensive information.  These designs have found applications in fisheries, agricultural, environmental and ecological studies such as radiation (soil contamination and disease clusters) or pollution (water contamination and root disease of crops)  as well as in medical research, machine learning and image processing.

在许多实验中，实现统计上合理的采样设计的一个重要因素是从采样单元进行测量的成本。有时，研究人员可以获得一些辅助信息，或早期调查的结果，专家意见知识，或来自人口的廉价而有用的测量结果，这些测量结果可以在对样本进行最终测量之前轻松地对样本进行排序。例如，考虑在人群中估计骨矿物质密度的问题。这种研究的对象是丰富的，但通过双X射线吸收测量法对选定的对象进行骨密度测量是昂贵的。因此，重要的是尽量减少这种研究所需的测量次数，而不减少获得的有关人群骨矿物质密度构成的可靠信息量。一个成功的策略是使用专家意见的知识，大量的抽样单位，以确定更有代表性的样本，从人口的昂贵的骨密度测量应收集通过双X射线吸收测量。基于秩的抽样设计提供了一系列技术，可以在廉价信息的帮助下获得和分析这些昂贵的测量结果，这些设计在渔业、农业、环境和生态研究（如辐射（土壤污染和疾病集群）或污染（水污染和作物根部疾病））以及医学研究、机器学习和图像处理中得到了应用。