We also need to assess the impact of multiple large data sets being used together: what will be revealed, and how can it be used? While the ABS and the government promised that the census data would be safe and "de-identified", experts are now poking holes in that statement. Names of individuals in the census will be obfuscated using so-called Statistical Linkage Keys (SLKs) which can be used across multiple data sets. The idea is that the more data sets you can link and compare, the greater the insight. We also need to assess the impact of multiple large data sets being used together: what will be revealed, and how can it be used?

Source: New Zealand Herald August 16, 2016 04:07 UTC