Consider following rating data set:

User Item Rating

u$1$ m$13$

u$1$ m$24$

u$2$ m$14$

u$2$ m$33$

u$3$ m$14$

u$3$ m$22$

u$3$ m$34$

u$4$ m$24$

u$4$ m$34$

Predict user u$1$s rating for item m$3$ using item$-$based as well user$-$

based CF$.$ Use cosine similarity measurement.Question $2$: Consider following rating data set:

Predict user u$1\text{'}$s rating for item m $3$ using item$-$based as well user$-$based CF$.$ Use

cosine similarity measurement.

Give me a stepwise in detail answer with in detail explanation