Jan 04 2006
How does Flickr’s interestingness ranking work?
I’m really wondering how Flickr orders photos by interestingness.
Here’s the attributes of ours:
- 30 views / 1 person counts this as a favorite / 0 comments
- 5 views / 1 person counts this as a favorite / 1 comment
- 26 views / 1 person counts this as a favorite / 2 comments
- 51 views / 1 person counts this as a favorite / 3 comments
- 17 views / Nobody counts Mac dudes as a favorite / 4 comments
- 45 views / 1 person counts this as a favorite / 0 comments
- 36 views / Nobody counts France vs Cyprus – 2005-10-12 – 4-0 as a favorite / 1 comment
- 6 views / 1 person counts this as a favorite / 0 comments
- Etc.
This looks random to me.


January 9th, 2006 at 1:33
Reading Paul’s entry on this subject, I thought about this again. Looking only at Flickr data we have (i.e. not the undisclosed factors Paul talks about), we could have a formula like:
interestingness = (views + 2 * comments + 5 * favorites) * age(account) / age(picture)