November 17th, 2009
LinkedIn people you may know
So I joined LinkedIn because my Dad invited me over the summer... and it totally freaked me out because I hadn't setup any account information, yet it guessed at the people I might know, and was right for many of them. For a second, I was wondering if I had imported my Gmail account contacts by mistake.
I finally realized that it was mining data that other people had imported, and searching for matches based on that. The interesting thing is, that there is a business contact that I had made at work (who I've only corresponded with via my work email account), and he shows up as a person I might know, even though LinkedIn has no confirmed knowledge of my work email address.
This is kind of interesting... guessing that first+last names of people might match, even though the email address (a much more uniquely identifying attribute) does not.
It freaks me out a lot less now that I have a guess at how it works... pretty clever, but its definately a privacy concern. This is definately something I'd enjoy working on though... improving the algorithm to find connections and looking at the data to verify the hypothesis... I love this stuff :)
