Feed Sign in with OpenID OpenID

Simon Willison’s Weblog

On the Anonymity of Home/Work Location Pairs. Most people can be uniquely identified by the rough location of their home combined with the rough location of their work. US Census data shows that 5% of people can be uniquely identified by this combination even at just census tract level (1,500 people).

Tagged , , ,

2 comments

  1. I don't think "Most people" and "5% of people" are the same thing dude :)

    Still, I like your blog :)

    Robert Schultz - 28th May 2009 17:40 - #

  2. Most people referred to the much larger group who can be roughly identified by their home/work location pair (to within a small group of people sharing the same pair). The 5% are the people for whom that group has a size of one.

    Simon Willison - 28th May 2009 18:46 - #

Comments are closed.
A django site