Some docs on privacy and data aggregation

[Tracey P. Lauriault]

I think the next big open data discussion, after the metadata and interoperability issues are more thoroughly investigated will be data aggregation.  If you have data, and release micro data could cause a privacy breach, then governments will have to decide how they will aggregate data and we will have to be a part of that discussion if we want to see meaningful geographies at reasonable levels of aggregation:

Data and emergency preparedness:
ftp://ftp.cits.rncan.gc.ca/pub/cartonat/Reference/Mapping_for_Preparedness.pdf

Webinar listed here

Geospatial Privacy: Why You Should Know About it and How it Can be Handled

http://www.geoconnections.org/en/newsmedia

paper associated with the Webinar - CGDI Operational Policies Facilitate the Access, Use, and Sharing of Canadian Geospatial Information - http://rose.geog.mcgill.ca/ski/system/files/fm/2011/Riopel.pdf


Data suppression at StatCan with small geographies - http://www12.statcan.ca/census-recensement/2006/ref/notes/DQ-QD/other-autres-eng.cfm

Useful glossary of the StatCan Geographies, illustrated with pictures & short definitions,  - http://geodepot.statcan.ca/2006/180506051805140305/03150707/0914040524_05-eng.jsp
- look at:
- Dissemination Area (these replaced enumeration areas which are larger, but resulted in less data blocking/masking) - http://geodepot.statcan.ca/2006/180506051805140305/03150707/121514070405190318091620091514_05-eng.jsp?REFCODE=10&LANG=E&GEO_LEVEL=35&TYPE=L
- Dissemination blocks - note what they do for confidentiality - http://geodepot.statcan.ca/2006/180506051805140305/03150707/19081518200405190318091620091514_05-eng.jsp?GEO_LEVEL=102&ABBRV=null&REFCODE=10&LANG=E&TYPE=L

NOTE - I would not necessarily want all the nation's geographies organized according to this detached scientific grid, neighoubourhoods and wards for instance are way more meaningful.

This report provides a useful overview of data masking and de-identification in health - https://www.ehealthinformation.ca/presentations/webinars/infoway/deid.pdf

StatCan and Record Linkage - http://www.statcan.gc.ca/record-enregistrement/policy4-1-politique4-1-eng.htm
Statistics Canada Privacy Impact Assessment Policy - http://www.statcan.gc.ca/about-apercu/pia-efrvp/pol-pai-efvp-eng.htm

This is no way near comprehensive but had to put these together for something else and thought I would share!

Cheers
t