Semiparametric and Nonparametric Inferences

半参数和非参数推理

• 批准号: 0072635
• 负责人: Xiaotong Shen
• 金额: $ 7.46万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-07-01 至 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0072635&HistoricalAwards=false
• 关键词: Semiparametric; Nonparametric; Inferences

Semiparametric and nonparametric inferences Most scientific problems involving data and many medical research problems can be viewed as an investigation into the association between a response variable and a number of potential explanatory variables. Regression analysis, wavelet techniques, hierarchical Bayesian analysis, and neural networks are included in the set of tools that can be brought to bear on such problems. Recent advances in computer technology make it easier to collect large data sets, which in turn demand more complex scientific theories. Hence high-dimensional semiparametric and nonparametric techniques become powerful tools for analyzing data. This research concerns several related statistical problems ranging from processing signals to analyzing survival data. The research includes the further development of methodologies and computational tools for model fitting and inference in two areas. In the first area, the research develops new techniques of random-sieve methodology and deterministic sieve methodology, each of which expands existing techniques in novel ways. In the second area, the research studies foundational issues of the connection between semiparametric and nonparametric Bayesian and maximum likelihood inference, and constructs confidence bands andintervals for function inference. The areas of application include survival analysis and signal processing. The knowledge gained in this investigation is expected to bring great benefit to many other statistical areas and will be useful in a variety of complex scientific problems.

半参数和非参数推断大多数涉及数据的科学问题和许多医学研究问题可以被视为对响应变量和许多潜在解释变量之间关联的调查。回归分析，小波技术，层次贝叶斯分析，神经网络包括在一套工具，可以带来承担这样的问题。计算机技术的最新进展使收集大型数据集变得更加容易，这反过来又需要更复杂的科学理论。因此，高维半参数和非参数技术成为分析数据的有力工具。 本研究涉及从处理信号到分析生存数据的几个相关统计问题。该研究包括在两个领域进一步开发模型拟合和推理的方法和计算工具。在第一个领域，研究开发了随机筛选方法和确定性筛选方法的新技术，每一种方法都以新的方式扩展了现有的技术。第二部分研究了半参数和非参数贝叶斯与最大似然推理之间联系的基础问题，并构造了函数推理的置信带和置信区间。应用领域包括生存分析和信号处理。在这项调查中获得的知识预计将带来很大的好处，许多其他统计领域，并将在各种复杂的科学问题是有用的。