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← Supervised Classification Example - Intro to Machine Learning

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Showing Revision 3 created 05/25/2016 by Udacity Robot.

  1. So, here's what I would say.
  2. I would say that the first example of recognizing someone's picture from
  3. a bunch of tagged photographs is definitely a supervised classification example.
  4. This is something that Facebook does all the time when it does
  5. recognition on the photos that you upload there.
  6. Another popular one is recommender systems like Netflix and Pandora.
  7. They look at the stuff that they know that you like already, and they try to
  8. figure out what the features of, of those things are, those movies or those
  9. songs, and it recommends more movies or songs that have similar features to you.
  10. Fraud is probably not an example of supervised classification and
  11. that's because we haven't really defined what a weird-looking transaction is.
  12. We don't have an example of what that might mean.
  13. So there's ways that you could still do this, but
  14. this would be an example of unsupervised learning and
  15. we'll talk about that a little bit more later in the class.
  16. Another thing that's usually unsupervised learning is clustering, so
  17. in this example, we don't know what the types of students are.
  18. We might not even know how many different types we're looking for.
  19. There's still ways that we can approach this problem, but
  20. this isn't an example where you have a big bank of training data where you
  21. already know the correct answer.