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在线半参数估计用于控制新出现流行病的最佳治疗分配

Online, semi-parametric estimation of optimal treatment allocations for the control of emerging epidemics
课程网址: http://videolectures.net/rldm2015_laber_optimal_treatment/  
主讲教师: Eric B. Laber
开课单位: 北卡罗来纳州立大学
开课时间: 2015-07-28
课程语种: 英语
中文简介:
控制流行病传播的一个关键因素是决定在何处、何时以及向谁实施干预。在这里,我们将流行病概念化为在网络中的节点间传播。治疗分配策略将此过程形式化为一系列功能,每个治疗周期一个,将流行病的最新信息映射到接受治疗的节点子集。最佳的治疗分配策略可以最大限度地降低对某些累积伤害度量的期望,例如,受感染个体的数量、疾病的地理足迹、疾病的估计总成本,或权衡若干重要度量的综合结果。估计最优分配策略的一种方法是对潜在疾病动态进行建模,然后用于模拟优化。然而,构建完整系统动力学的高质量估计器是困难的,特别是在新兴流行病的背景下,在这种情况下,几乎没有科学理论来为一类模型提供信息。我们推导了不需要系统动力学模型的最优分配策略的估计方程。此外,由于该估计器不需要对疾病过程进行模拟,因此即使对于非常大的问题,它也可以进行计算。我们使用蝙蝠白鼻综合征传播的数据证明了所提出的方法
课程简介: A key component in controlling the spread of an epidemic is deciding where, when, and to whom to apply an intervention. Here, we conceptualize the epidemic as spreading across nodes in an network. A treatment allocation strategy formalizes this process as a sequence of functions, one per treatment period, that map up-to-date information on the epidemic to a subset of nodes to receive treatment. An optimal treatment allocation strategy minimizes the expectation of some cumulative measure of harm, e.g., the number of infected individuals, the geographic footprint of the disease, the estimated total cost of the disease, or a composite outcome weighing several important measures. One approach to estimating an optimal allocation strategy is to model the underlying disease dynamics and then use to simulation—optimization. However, constructing a high-quality estimator of the complete system dynamics is difficult especially in the context of emerging epidemics where there is little scientific theory to inform a class of models. We derive estimating equations for the optimal allocation strategy that does not require a model the system dynamics. Furthermore, because this estimator does not require simulation of the disease process it is computationally tractable even for very large problems. We demonstrate the proposed methodology using data on the spread of white-nose syndrome in bats
关 键 词: 控制流行病传播; 治疗分配策略; 新兴流行病
课程来源: 视频讲座网
数据采集: 2021-11-27:zkj
最后编审: 2021-11-27:zkj
阅读次数: 55