Chapter 8. Collaborative filtering in the neighborhood
Collaborating makes things easier, so let’s collaborate our way through this chapter.
- You’ll start by revisiting the rating matrix.
- You’ll look at the theory behind collaborative filtering.
- Collaborative filtering is done in several steps, and you’ll look at each and learn about the choices that need to be addressed.
- You’ll learn how collaborative filtering is implemented in MovieGEEKs.
This chapter introduces collaborative filtering and goes into detail about the branch of it called neighborhood-based filtering. Collaborative filtering is an umbrella of methods. What unites those is the selection of data. These filtering methods only use ratings (implicit or explicit) as the source ...