Extrapolating and Interpolating Spatial Patterns

CWI's research has a theme-oriented structure and is grouped into four clusters. Listed below are the names of the clusters and in parentheses their acronyms. ABSTRACT We discuss issues arising when a spatial pattern is observed within some bounded region of space, and one wishes to predict the process outside of this region extrapolation as well as to perform inference on features of the pattern that cannot be observed interpolation. We focus on spatial cluster analysis. Here the interpolation arises from the fact that the centres of clustering are not observed. We takeaBayesian approach with a repulsive Markov prior, derive the posterior distribution of the complete data, i.e. cluster centres with associated oospring marks, and propose an adaptive coupling from the past algorithm to sample from this posterior. The approach is illustrated by means of the redwood data set Ripley, 1977.