IPUMS Redesign

描述（由申请人提供）：从1850年至今的人口普查和调查数据的一系列兼容的大型微观数据样本。IPUMS通过最大限度地减少冗余工作，简化数据访问，增加研究的可复制性和提高数据可靠性，降低了人口和健康研究界的成本。大规模集成微数据的可用性为变化过程的细粒度上下文分析提供了非凡的新机会，从而导致跨各种主题和学科的转型研究。在过去的五年里，IPUMS已经看到了使用数据库的研究人员数量的爆炸性增长，他们要求的数据量，以及他们产生的高影响力出版物的数量。然而，与此同时，研究人员对基础设施的扩展、改进和支持提出了前所未有的需求。该项目将开展四项主要活动来满足这一需求：1.数据库扩展。IPUMS支持的美国数据量将在未来五年内翻一番，包括775个统一的数据集，描述约5亿人的特征。2.改进数据和元数据。该项目将开展一系列活动，以改进文件编制并使其更易于查阅，纠正数据错误，提供创新的空间分析工具，并开发描述家庭和职业的新的综合变量。3.数据基础设施和访问。支持IPUMS数据收集的基础设施将使用列存储数据结构进行重新设计，这是一种简化元数据创建和维护的新工具集，也是简化数据操作和减少研究人员重复工作的新工具。4.传播和可持续性。IPUMS重新设计将继续提供用户支持，培训和推广，并将实施新的战略，利用IPUMS用户社区的专业知识，促进合作和科学发现。为了确保几十年的保护，该项目将制定和实施一项新的保护计划。这一基础设施是卫生研究和政策分析的基本资源。对过去的模型和描述是过去社会变革理论和对未来预测的基础。因此，数据系列为研究健康和人口过程提供了一个独特的实验室，并为我们开发和测试社会和经济模型提供了所需的经验基础。

DESCRIPTION (provided by applicant): A compatible series of large microdata samples of census and survey data spanning the period from 1850 to the present. IPUMS reduces costs for the population and health research community by minimizing redundant effort, simplifying data access, increasing the replicability of studies, and improving data reliability. The availability o large-scale integrated microdata has opened extraordinary new opportunities for fine-grained contextual analyses of processes of change, resulting in transformational research across a diverse range of topics and disciplines. Over the past five years, IPUMS has seen explosive growth in the number of researchers using the database, the amount of data they request, and the number of high-impact publications they produce. At the same time, however, there is unprecedented demand from researchers for expansion, improvement, and support of the infrastructure. This project will undertake four major activities to meet this demand: 1. Database expansion. The quantity of U.S. data supported by IPUMS will double over the coming five years to include 775 harmonized datasets describing the characteristics of approximately 500 million persons. 2. Data and metadata improvement. The project will undertake a series of activities to improve documentation and make it more accessible, correct data errors, provide innovative tools for spatial analysis, and develop new integrated variables describing families and occupations. 3. Data infrastructure and access. The underlying infrastructure supporting the IPUMS data collection will be redesigned using column-store data structures, a novel toolset to simplify metadata creation and maintenance, and new tools to simplify data manipulation and reduce redundant effort by researchers. 4. Dissemination and sustainability. IPUMS Redesign will continue to provide user support, training, and outreach, and will also implement new strategies to harness the expertise of the IPUMS user community to promote collaboration and scientific discovery. To ensure preservation over multiple decades, the project will develop and implement a new preservation plan. This infrastructure is a basic resource for health research and policy analysis. Models and descriptions of the past underlie both theories of past social change and projections into the future. Accordingly, the data series provides a unique laboratory for the study of health and demographic processes, and provides the empirical foundation we need for developing and testing social and economic models.