Online Program Home
My Program

Abstract Details

Activity Number: 293 - Curve Estimation Under Dependence
Type: Topic Contributed
Date/Time: Tuesday, July 31, 2018 : 8:30 AM to 10:20 AM
Sponsor: Royal Statistical Society
Abstract #328438 Presentation
Title: Finding Hotspots
Author(s): Sucharita Ghosh*
Companies: Swiss Federal Research Institute WSL
Keywords: Threshold; Exceedance; Spatial data; Correlations; Smoothing; Kernel regression

Search for hotspots have a wide range of applications, including in medical imaging, ecological monitoring over very large landscapes, analysis of ozone fields on a global scale, and others. We will consider spatial observations that are Gaussian subordinated, with marginal distributions that are location dependent and have spatial autocorrelations. The aim is to identify locations where a derivative of the mean surface locally exceeds a given threshold. We will discuss asymptotic results under various correlation types, as well as applications to some large-scale spatial environmental data. This is joint work with Gabrielle Moser, Statistics Lab, Swiss Federal Research Institute WSL.

Authors who are presenting talks have a * after their name.

Back to the full JSM 2018 program