Mathematical Sciences Research Equipment 1990

这是国家科学基金会数学科学部数学科学计划科学计算研究设备项目的一项资助。该计划支持购买专门用于进行数学科学研究的专用计算设备。这种设备是几个研究项目所需要的，很难单独为一个项目辩护。国家科学基金会的支持伴随着制造商的折扣和贡献，以及提交提案的机构的大量费用分摊。该项目是学术、企业和政府合作支持数学科学基础研究的一个范例。这台设备将用于支持爱荷华大学统计和精算学系的五个研究项目：最大似然和最小距离准则估计多变量方差分量，调查者是James Calvin和Richard Dykstra；分析遥测数据-寻找信号的位置，调查者是Johannes Ledolter，Russell Lten和Anderson-Sprecher；质量改进问题中的稳健尺度估计，调查者是Robert Hogg，Marianthi Markatou和Lth；空间统计学的一些专题，调查者是Dale Zimmerman；预测回归估计量对于有限总体值使用概率选择的函数，调查者是Louis Rizzo。

This is a grant under the Scientific Computing Research Equipment for the Mathematical Sciences program of the Division of Mathematical Sciences of the National Sciences Foundation. This program supports the purchase of special purpose computing equipment dedicated to the conduct of research in the mathematical sciences. This equipment is required for several research projects and would be difficult to justify for one project alone. Support from the National Science Foundation is coupled with discounts and contributions from manufacturers and with substantial cost-sharing from the institutions submitting the proposal. This program is an example of academic, corporate, and government cooperation in the support of the basic research in the mathematical sciences. This equipment will be used to support five research projects in the Department of Statistics and Actuarial Science of the University of Iowa: estimation of multivariate variance components by maximum likelihood and minimum distance criteria, the investigators are James Calvin and Richard Dykstra; analysis of telemetry data - finding the location of a signal, the investigators are Johannes Ledolter, Russell Lenth and Anderson- Sprecher; robust scale estimation in quality -improvement problems, the investigators are Robert Hogg, Marianthi Markatou, and Lenth; some topics in spatial statistics, the investigator is Dale Zimmerman; predictive regression estimators for finite population values using functions of the probability of selection, the investigator is Louis Rizzo.