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Classification of Events Using Local Pair Correlation Functions for Spatial Point Patterns

Author

Listed:
  • Jonatan A. González

    (University Jaume I)

  • Francisco J. Rodríguez-Cortés

    (Universidad Nacional de Colombia)

  • Elvira Romano

    (Universitá della Campania “Luigi Vanvitelli”)

  • Jorge Mateu

    (University Jaume I)

Abstract

Spatial point pattern analysis usually concerns identifying features in an observation window where there is also noise. This identification traditionally begins with studying the second-order properties of the point pattern, and it may be done locally by using local second-order characteristics (LISA). Some properties of this local structure solve the problem of classification into feature and clutter points. This paper proposes an estimator for local pair correlation LISA functions, discusses some of its properties and considers a particular distance to measure dissimilarities. Two classification procedures to separate feature from clutter points are described. One of them adopts multidimensional scaling and support vector machines, and the other employs bagged clustering. Simulations demonstrate the performance of the method, and it is applied to a dataset concerning earthquakes in a seismic nest located in Colombia.

Suggested Citation

  • Jonatan A. González & Francisco J. Rodríguez-Cortés & Elvira Romano & Jorge Mateu, 2021. "Classification of Events Using Local Pair Correlation Functions for Spatial Point Patterns," Journal of Agricultural, Biological and Environmental Statistics, Springer;The International Biometric Society;American Statistical Association, vol. 26(4), pages 538-559, December.
    • Handle: RePEc:spr:jagbes:v:26:y:2021:i:4:d:10.1007_s13253-021-00455-1
    DOI: 10.1007/s13253-021-00455-1
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    References listed on IDEAS

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