$($Optional$)$ Why Not Regression?

$0$ points possible $($ungraded$)$

According to the video, which of the following are reasons not to use a regression approach to the ranking

prediction problem? $($Choose all that apply.$)$

Predicting the ranking a user would give on a movie is a classification task

We might not know all the important features for the prediction

Usually, users have not ranked enough movies to predict the user's future movie rankings with

regression

Different users might have very different opinions about movies