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DATABRICKS-CERTIFIED-PROFESSIONAL-DATA-SCIENTIST · Question #22

Select the correct option from the below

The correct answer is A. If you're trying to predict or forecast a target value^ then you need to look into supervised learning. B. If you've chosen supervised learning, with discrete target value like Yes/No. 1/2/3, A/B/C: or D. If you're not trying to predict a target value, then you need to look into unsupervised learning E. Are you trying to fit your data into some discrete groups? If so and that's all you need, you should look. If you re trying to predict or forecast a target value, then you need to look into supervised learning. If not, then unsupervised learning is the place you want to be. If you've chosen supervised learning, what's your target value? Is it a discrete value like Yes/No, 1/2/3…

Machine Learning Fundamentals

Question

Select the correct option from the below

Options

  • AIf you're trying to predict or forecast a target value^ then you need to look into supervised learning.
  • BIf you've chosen supervised learning, with discrete target value like Yes/No. 1/2/3, A/B/C: or
  • CIf the target value can take on a number of values, say any value from 0.00 to 100.00, or -999 to 999:
  • DIf you're not trying to predict a target value, then you need to look into unsupervised learning
  • EAre you trying to fit your data into some discrete groups? If so and that's all you need, you should look

How the community answered

(35 responses)
  • A
    74% (26)
  • C
    26% (9)

Explanation

If you re trying to predict or forecast a target value, then you need to look into supervised learning. If not, then unsupervised learning is the place you want to be. If you've chosen supervised learning, what's your target value? Is it a discrete value like Yes/No, 1/2/3, A/B/C: or Red/Yellow/Black? If so, then you want to look into classification. If the target value can take on a number of values, say any value from 0.00 to 100.00, or-999 to 999, or+to -, then you need to look into regression. If you're not trying to predict a target value: then you need to look into unsupervised learning. Are you trying to fit your data into some discrete groups? If so and that's all you need, you should look into clustering. Do you need to have some numerical estimate of how strong the fit is into each group? If you answer yes then you probably should look into a density estimation algorithm.

Topics

#supervised learning#unsupervised learning#machine learning types#algorithm selection

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