Considering the User-Movie ratings matrix below. a. Find 3 members of Ua using Cosine Similarity. b....

 

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Considering the User-Movie ratings matrix below. a. Find 3 members of Ua using Cosine Similarity. b. Predict the rating of Ua for M5 using User-Based collaborative filtering using the similarity calculated in part a. c. What is the problem if you have to predict rating for User Ua Movie M9 using item based collaborative filtering and what is it called? M1 M2 M3 M4 M5 M6 M7 M8 M9 Ul ? U2 3 4 ? ? ? ? ? ? 5 4 2 1 2 ? ? 5 1 U3 3 ? ? 3 2 2 ? 3 ? U4 4 1 ? 2 1 1 2 4 ? U5 1 1 ? ? ? ? ? 1 ? U6 ? ? ? ? 1 1 ? 1 ? Ua ? ? 4 3 ?. 1 ? 5 ? Considering the User-Movie ratings matrix below. a. Find 3 members of Ua using Cosine Similarity. b. Predict the rating of Ua for M5 using User-Based collaborative filtering using the similarity calculated in part a. c. What is the problem if you have to predict rating for User Ua Movie M9 using item based collaborative filtering and what is it called? M1 M2 M3 M4 M5 M6 M7 M8 M9 Ul ? U2 3 4 ? ? ? ? ? ? 5 4 2 1 2 ? ? 5 1 U3 3 ? ? 3 2 2 ? 3 ? U4 4 1 ? 2 1 1 2 4 ? U5 1 1 ? ? ? ? ? 1 ? U6 ? ? ? ? 1 1 ? 1 ? Ua ? ? 4 3 ?. 1 ? 5 ?