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Section checkpoint · 07

Feature Engineering

Use this short test to check whether the main ideas from the section are connected in your mind. A strong score means you can recognise the concepts; revisit linked lessons when an answer feels uncertain.

5questionsTarget: 4/5 or better

Question 11 point

Which concept is most appropriate for this situation: You need to apply the idea taught in “Domain Features” and explain how its input is transformed into a valid output.

Domain FeaturesFeature SelectionText TF IDF IntuitionLag and Rolling Features

Question 21 point

Which concept is most appropriate for this situation: You need to apply the idea taught in “Datetime Features” and explain how its input is transformed into a valid output.

Datetime FeaturesFeature SelectionLag and Rolling FeaturesPCA

Question 31 point

Which concept is most appropriate for this situation: You need to apply the idea taught in “Lag and Rolling Features” and explain how its input is transformed into a valid output.

Feature SelectionLag and Rolling FeaturesPCAInteractions and Polynomial Features

Question 41 point

Which concept is most appropriate for this situation: You need to represent, inspect or transform textual values rather than numeric quantities.

Interactions and Polynomial FeaturesDatetime FeaturesText TF IDF IntuitionLag and Rolling Features

Question 51 point

Which concept is most appropriate for this situation: You need a lower-dimensional linear representation that preserves as much variance as possible.

Domain FeaturesPCAInteractions and Polynomial FeaturesLag and Rolling Features