PERFECT MATCH - Stanford Facebook Class

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  • 1. Perfect Match Nicolas Kokkalis [email_address] Stanford CS377W Fall 2007 * Secret Announcement: apps.facebook.com/perfect_video
  • 2. Each person ranks others differently * Secret Announcement: apps.facebook.com/perfect_video
  • 3. Perfect Match* * Secret Announcement: apps.facebook.com/perfect_video there are no two people who would both rather have each other than their current partners *aka in CS: stable marriage problem
  • 4. The correct flow
    • Collect the preferences of all people on earth
    • Calculate the perfect match
    • Announce the results
    • THIS DOES NOT WORK!!! – Why?
    * Secret Announcement: apps.facebook.com/perfect_video
  • 5. It just doesn’t work!
    • Users are impatient : Reluctant to spend time on something that does not give them immediate results
    • Users are picky : Difficult to give detailed information to a new and unknown application, that none of their friends have
    • FIX IT:
    • Give them what they want FIRST
    * Secret Announcement: apps.facebook.com/perfect_video
  • 6. Inverse the steps order
    • First:
    • 3. Announce the best results you can with the info you have
    • Collect the preferences of all users
    • Calculate the perfect match ..and then:
    • Announce the improved results
    • THIS WORKS
    • 3.5 Million Users!
    * Secret Announcement: apps.facebook.com/perfect_video
  • 7. Viral Boost! Only 4 minutes away from the discovery of your perfect match Catchy mini-feed mesage * Secret Announcement: apps.facebook.com/perfect_video
  • 8. Further Boost! A catchy message! Invitations! * Secret Announcement: apps.facebook.com/perfect_video
  • 9. apps . facebook.com / perfect _ video