Project Idea 1: Find similar users of del.icio.us
Posted by urban
This is my take on the del.icio.us tools. One of the nice features of del.icio.us is that you can aggregate the new entries of other users in your inbox. The only problem is actually finding users that post links that interest you.
My idea is that if other users have posted the same links as you have they are likely to do so in the future, too. And because they have many links in common with you they should have similar interests. Therefore the other links they post should be more likely to interest you.
So, the idea is to take all your links and look for each link which other users have posted this link, too. The more links another user has in common with you the higher is your similarity. Then the top n users would be recommended to you to add to your inbox.
For a more advanced implementation it would also be nice to weight each link, i.e. the more other users have this link in common with you the less weight it should get (as it is less specific). This would favour more specific links over links that nearly everybody has.
