Joint Modeling of Multiple Data Sources

多数据源联合建模

• 批准号: RGPIN-2019-04404
• 负责人: Béliveau, Audrey
• 金额: $ 1.17万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=675739
• 关键词: Joint; Modeling; Multiple; Data; Sources

In recent years, joint statistical analyses of sources of data have gained traction in numerous fields of application, including animal population dynamics and human population health. This research program aims to advance the statistical methodology and applications for the joint modeling of multiple data sources. The first objective (O1) of this research is to address unexplored issues in integrated population modeling for the study of animal population dynamics. My team and I will develop continuous time integrated population models and address the questions of how to optimally allocate survey effort between the different surveys, how to deal with conflicting evidence between data sources and other assumptions breakdown.******The second objective (O2) is to develop novel statistical methodologies for the analysis of disconnected networks in network meta-analysis where the purpose is to synthesize evidence across randomized studies to assess the relative efficacy or safety of treatments. With standard methods, the treatment effects between disconnected treatments cannot be estimated. To achieve this, my team and I will develop new modelling strategies including parametric and non parametric models for study-specific baseline treatment effects and a joint model that will use correlation between outcomes.******The third objective (O3) is to develop statistical methodologies for the joint modeling of data sources in two new application areas. Specifically, my team and I will develop a novel methodology for estimating the size of yearly smolt runs when some of the daily data is missing due to trap failures on some days. Information will be shared across years through the use of rainfall covariates. We will also develop a novel methodology for estimating the size of homeless populations when the data is collected through a plant-capture scheme, and planted homeless may be unsure whether they were counted by the survey or not. We will develop a new model that shares evidence across multiple cities.******In addition to addressing several important methodological issues for the joint analysis of multiple data sources, this research will allow, for the first time, to make important connections between the various literatures on joint analysis methods and highlight differences. By making the methodology readily available through software implementations, this work is expected to significantly promote more complex and realistic joint analyses in the natural sciences. The applications of the novel methodologies will have real world impact by influencing policymaking in Canada and worldwide, from wildlife management and conservation to drug review and more. The knowledge gained from this research will be crucial for conservation managers to understand and react to the effects of climate change. This research will undertake considerable training of HQP (8 students) which will significantly contribute to capacity building in scientific and statistical modeling in Canada.

近年来，数据源的联合统计分析在许多应用领域受到关注，包括动物种群动态和人类健康。该研究计划旨在推进多个数据源联合建模的统计方法和应用。本研究的第一个目标（O1）是解决动物种群动态研究的综合种群模型中未探索的问题。我和我的团队将开发连续时间综合人口模型，并解决如何在不同调查之间最佳分配调查工作、如何处理数据源和其他假设崩溃之间相互矛盾的证据等问题。******第二个目标 (O2) 是开发新的统计方法，用于分析网络荟萃分析中的断开网络，其目的是综合随机研究的证据，以评估治疗的相对功效或安全性。使用标准方法，无法估计断开治疗之间的治疗效果。为了实现这一目标，我和我的团队将开发新的建模策略，包括用于特定研究基线治疗效果的参数和非参数模型，以及使用结果之间相关性的联合模型。******第三个目标 (O3) 是开发用于两个新应用领域的数据源联合建模的统计方法。具体来说，我和我的团队将开发一种新颖的方法，用于在某些天因陷阱故障而导致部分每日数据丢失时估算每年小鲑鱼运行的规模。将通过使用降雨量协变量来跨年共享信息。当通过植物捕获计划收集数据时，我们还将开发一种新的方法来估计无家可归人口的规模，而种植的无家可归者可能不确定他们是否被统计在调查中。我们将开发一个跨多个城市共享证据的新模型。*****除了解决多个数据源联合分析的几个重要方法论问题外，这项研究还将首次在联合分析方法的各种文献之间建立重要联系并突出差异。通过通过软件实现使该方法变得容易使用，这项工作预计将显着促进自然科学领域更加复杂和现实的联合分析。新方法的应用将通过影响加拿大和世界各地的政策制定来产生现实世界的影响，从野生动物管理和保护到药物审查等。从这项研究中获得的知识对于保护管理者理解和应对气候变化的影响至关重要。这项研究将对 HQP（8 名学生）进行大量培训，这将极大地促进加拿大科学和统计建模的能力建设。