Week 12 Exercise 46.8 clarification

[ivana...@gmail.com]

Hi,

I need clarification for week 12  exercise 46.8.

How to recommend a film based on similarities. There are 2 paths and I'm not clear as which one you are suggesting.

To describe my confusion let's say there are 6 reviewers. Sorted similarity array for one of them (Matti) is:

 sorted similarity for Matti: [Thomas(5), Mikke(3), Pekka(0), Letty(-15), Aaron(-25)]

When searching for film to recommend is the order a or b?:

a) from the highest positive to the highest negative similarity  i.e.

     [Thomas(5), Mikke(3), Pekka(0), Letty(-15), Aaron(-25)]

b) from module of highest similarity to lowest taking into account sign, i.e. if it is negative suggest the opposite 

     [ Aaron(-25), Letty(-15), Thomas(5), Mikke(3), Pekka(0)]

    In this case the fist suggestion will be the film Aaron hate the most, marked as bad(-5) then mediocre (-3) and so on down this order list

    If Thomas is reached then suggested are movies that Thomas liked the most.

Best regards

Ivana

[ivana...@gmail.com]

Ok, I solved it.

Wend down the root b) but since it is a super set of your root a) it pass all your tests. 

You said it is going to be challenging so I overdid it...

Best regards,

Ivana