A spatial accuracy assessment of an alternative circular scan method for Kulldorff's spatial scan statistic
Read, S., Bath, P.A., Willett, P. et al. (1 more author)
(2009)
A spatial accuracy assessment of an alternative circular scan method for Kulldorff's spatial scan statistic.
In: Fairbairn, David, (ed.)
Proceedings of the GIS Research UK 17th Annual Conference.
GIS Research UK, 17th Annual Conference, 01-03 Apr 2009, Durham, UK.
Durham University
, Durham, UK
, pp. 57-61.
ISBN 978-0-900974-58-8
Abstract
This paper concerns the Bernoulli version of Kulldorff’s spatial scan statistic, and how accurately it identifies the exact centre of approximately circular regions of increased spatial density in point data. We present an alternative method of selecting circular regions that appears to give greater accuracy. Performance is tested in an epidemiological context using manifold synthetic case-control datasets. A small, but statistically significant, improvement is reported. The power of the alternative method is yet to be assessed.
Metadata
Item Type:
Proceedings Paper
Authors/Creators:
Read, S. (simon.read@sheffield.ac.uk)
Bath, P.A. (p.a.bath@sheffield.ac.uk)
Willett, P. (p.willett@sheffield.ac.uk)
Maheswaran, R. (r.maheswaran@sheffield.ac.uk)
Editors:
Fairbairn, David (dave.fairbairn@newcastle.ac.uk)
Copyright, Publisher and Additional Information:
Copyright 2009 the authors.
Keywords:
epidemiology, spatial scan statistic, point process, case-control study, SaTScan
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