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Optimal spatial aggregation of space–time models and applications

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  • Gehman, Andrew
  • Wei, William W.S.

Abstract

Cancers are serious health concerns for every country. In the U.S. various cancer data are collected, monitored, and studied by the American Cancer Society (ACS). Since the data involves both spatial and temporal components, space–time models are useful for their analyses. Often these data (such as cancer rates) from varying geographical or political areas will be aggregated spatially to correspond to larger regions for analysis at that spatial scale. Methods to compare spatial aggregation schemes and to identify the optimal spatial aggregation are introduced. Specifically, some useful theorems and algorithms to determine the aggregation scheme that results in the minimum aggregate model error will be given, and they are demonstrated using the U.S. ovarian cancer incidence.

Suggested Citation

  • Gehman, Andrew & Wei, William W.S., 2020. "Optimal spatial aggregation of space–time models and applications," Computational Statistics & Data Analysis, Elsevier, vol. 145(C).
    • Handle: RePEc:eee:csdana:v:145:y:2020:i:c:s0167947320300049
    DOI: 10.1016/j.csda.2020.106913
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