Analysis of point patterns observed with errors: some examples

Föreläsare

Aila Särkkä from Chalmers University of Technlogy

Abstract

Many natural systems are observed as point patterns in time, space, or space and time. Examples include plant and cellular systems, animal colonies, wildfires, and galaxies. In practice, the locations of the points are not always observed correctly. However, in the point process literature, little attention has been paid to the issue of errors in the locations of points. In this talk, we discuss how the observed point pattern may deviate from the actual point pattern, and review methods and models that exist to handle such deviations using some examples of data observed with errors. 

The seminar is based on the review paper "What you see is not what is there: Mechanisms, models, and methods for point pattern deviations" in Statistical Science by Peter Guttorp, Janine Illian, Joel Kostensalo, Mikko Kuronen, Mari Myllymäki, Aila Särkkä, and Thordis Thorarinsdottir.