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Statistical Papers

, Volume 60, Issue 1, pp 199–221 | Cite as

An area-specific stick breaking process for spatial data

  • Mahdi Hosseinpouri
  • Majid Jafari KhalediEmail author
Regular Article
  • 163 Downloads

Abstract

Most of the existing Bayesian nonparametric models for spatial areal data assume that the neighborhood structures are known, however in practice this assumption may not hold. In this paper, we develop an area-specific stick breaking process for distributions of random effects with the spatially-dependent weights arising from the block averaging of underlying continuous surfaces. We show that this prior, which does not depend on specifying neighboring schemes, is noticeably flexible in effectively capturing heterogeneity in spatial dependency across areas. We illustrate the methodology with a dataset involving expenditure credit of 31 provinces of Iran.

Keywords

Spatial modeling Bayesian nonparametrics Stick-breaking process Geostatistical approach Fixed rank model Basis function 

Notes

Acknowledgments

The editor-in-cheif and referees are gratefully acknowledged. Their valuable comments have improved the manuscript.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Department of StatisticsTarbiat Modares UniversityTehranIran

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