08. Quiz: Latent Factors

Latent Factors

Before we get our hands on SVD, let's make sure the idea of latent factors is well understood using the quizzes below.

Check the appropriate definition for latent factor.
SOLUTION: Values that are not directly observable in our data, but may be recognized when looking at relationships and trends that exist between observed data values.

Imagine a situation in which you collect 1-5 ratings data from a bunch of people related to how they feel about lots of different animals (birds, horses, cats, dogs, etc.). What are some examples of possible latent factors you might observe in this ratings data?
SOLUTION:
  • The size of the animal.
  • How many legs the animal has.
  • Whether the animal can fly or not.

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