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作者:Benjamini, Ybav; Heller, Ruth
作者单位:Tel Aviv University; University of Pennsylvania
摘要:The problem of multiple testing for the presence of signal in spatial data can involve numerous locations. Traditionally, each location is tested separately for signal presence, but then the findings are reported in terms of clusters of nearby locations. This is an indication that the units of interest for testing are clusters rather than individual locations. The investigator may know a priori these more natural units or an approximation to them. We suggest testing these cluster units rather ...
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作者:Zhu, Hongtu; Zhang, Heping; Ibrahim, Joseph G.; Peterson, Bradley S.
作者单位:University of North Carolina; University of North Carolina Chapel Hill; Yale University; University of North Carolina; University of North Carolina Chapel Hill; New York State Psychiatry Institute; Columbia University
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作者:Sahu, Sujit K.; Gelfand, Alan E.; Holland, David M.
作者单位:University of Southampton; Duke University; United States Environmental Protection Agency
摘要:This article proposes a space-time model for daily 8-hour maximum ozone levels to provide input for regulatory activities: detection, evaluation, and analysis of spatial patterns and temporal trend in ozone summaries. The model is applied to the analysis of data from the state of Ohio that contains a mix of urban, suburban, and rural ozone monitoring sites. The proposed space-time model is autoregressive and incorporates the most important meteorological variables observed at a collection of o...