Project Prometheus/Collaborative Filtering

��������� ������������ CF��� ������ ��������� ������������ "Customers who bought this book also bought"��������� ��� ��� ������한 ������ 하��� ������ ������ ��� 하���. ��������� ��� Clustering��� ����������� -- Clustering��� 효������ ���휘하������ ������������ ��������(CriticalMass )��� ��������� 하������, ������ ������ ������ ���������. ��������� JuNe��� ������한 ������한 ������������. ��������� Item-to-Item Correlation Recommendation.

• userPref is a set of book preferences of a user.
  
• For every meaningful action(searching, viewing, writing a review, rating without writing reviews) there is a pref coefficient. (prefCoef)
  
• bookPref is a set of book preferences of a book. (similar concept to "also bought")
  
• When a user does a specific well-defined action, bookPref is updated as "prefCoef*userPref+bookPref" and resorted. (some books at the end of the list might be eliminated for performance reasons)
  
• Any top Ns are shown from the bookPref
  
  

Iteration 2 ������ ������ Prototype & ������������ (����� ������ ������)

ProjectPrometheus