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# PERFECT MATCH - Stanford Facebook Class

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### PERFECT MATCH - Stanford Facebook Class

1. 1. Perfect Match Nicolas Kokkalis [email_address] Stanford CS377W Fall 2007 * Secret Announcement: apps.facebook.com/perfect_video
2. 2. Each person ranks others differently * Secret Announcement: apps.facebook.com/perfect_video
3. 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. 4. The correct flow <ul><li>Collect the preferences of all people on earth </li></ul><ul><li>Calculate the perfect match </li></ul><ul><li>Announce the results </li></ul><ul><li>THIS DOES NOT WORK!!! – Why? </li></ul>* Secret Announcement: apps.facebook.com/perfect_video
5. 5. It just doesn’t work! <ul><li>Users are impatient : Reluctant to spend time on something that does not give them immediate results </li></ul><ul><li>Users are picky : Difficult to give detailed information to a new and unknown application, that none of their friends have </li></ul><ul><li>FIX IT: </li></ul><ul><li>Give them what they want FIRST </li></ul>* Secret Announcement: apps.facebook.com/perfect_video
6. 6. Inverse the steps order <ul><li>First: </li></ul><ul><li>3. Announce the best results you can with the info you have </li></ul><ul><li>Collect the preferences of all users </li></ul><ul><li>Calculate the perfect match ..and then: </li></ul><ul><li>Announce the improved results </li></ul><ul><li>THIS WORKS </li></ul><ul><li> 3.5 Million Users! </li></ul>* Secret Announcement: apps.facebook.com/perfect_video
7. 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. 8. Further Boost! A catchy message! Invitations! * Secret Announcement: apps.facebook.com/perfect_video
9. 9. apps . facebook.com / perfect _ video