Confidentialising maps of mixed point and diffuse spatial data

Authors:
Christine M. O'Keefe
Affiliations:
CSIRO Mathematics, Informatics and Statistics, Canberra, ACT, Australia
Venue:
PSD'12 Proceedings of the 2012 international conference on Privacy in Statistical Databases
Year:
2012

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Abstract

In this paper we provide an introduction to the area of disseminating spatial data through maps, including an overview of confidentialisation techniques. To date, published methods have focussed on confidentialising maps of spatial point data, mainly in the context of epidemiological and health research. However, maps of spatial data sets of point and diffuse (line and area) records are becoming more important and require confidentialisation in some applications. In this paper we propose a method for confidentialising maps of spatial data sets which include a mixture of point, line and area records. The method combines and adapts traditional non-perturbative disclosure control techniques.