Try my new trust metric!

[ciphergoth]

I have implemented my new trust metric, and applied it (fairly crudely) to LiveJournal friends lists as an experiment. The result is a tool that tells you who is "closest" to your friends list who isn't actually on it, like "popwithfriends" but more sophisticated.

Who is closest to your friends list?

Let me know how plausible the results seem to you.

Update: Shit, I've broken the machine it was running on. Back later when I've made it check the load average before running the metric... Update: Back again now, with a rate limiter to keep the load average reasonable. Gosh, hadn't expected such popularity!

Comments

[mirukux.livejournal.com]

very nifty tool there.

couple of suggestions; would it maybe be an idea to use a combination of both percentage of similar friends and number of similar friends, because i've seen people's results where the top linked friend is an empty journal with only one mutual friend friended.

also, how about a community 16x16 icon for communities, or is that info not included in the lj protocal (or whatever).

how about making a version which shows a list of the people who themselves have friended a large ammount of your friends. slightly less relevance, but it might be interesting to see the different social dynamics. just an idea, probably a bad on at that.

thanks for your time

[ciphergoth.livejournal.com]

My algorithm does not measure who has similar friends to you; it looks at who your friends list as friends, and who they list in turn, and so on.

I can prove this algorithm "attack resistant". I'm not sure I can do that for the sorts of proposals you're making.

The community thing is work; I'm not sure I can be bothered! Sorry!

How would you find such people? You can't check every LJ user. You'd have to rely on "friends-of" lists, but not everyone enables them. Also it's definitely not attack resustant.

[mirukux.livejournal.com]

is it not true that even if friends-of list on a users bio is disabled, that it can be accessed in the db anyway?

[ciphergoth.livejournal.com]

of course, but I don't have direct access to the DB - I'm looking up friends lists as I need them and caching the results.