I have been working on fetching user's friends from facebook, twitter and foursquare for about three months using PHP and their respective SDKs. Successfully I fetched the friends list and I stored each list in an associative array. I'm looking for ideas to combine these friends and come with with a similarity score?
The problem is I only have friends names and no other information. Facebook & twitter won't provide any other details even their respective email ids. I'm wondering if anyone has some on how to design a score function?
Thanks for your help !
