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5 cards from this section. Quick, good the night before a test.
What is the purpose of handling missing values in a dataset?
Think about the impact of missing data on model predictions.
What does One-Hot Encoding do?
Consider how categorical features could be represented numerically.
What is the purpose of a preprocessing pipeline?
Consider what your data goes through before reaching the model.
True or False: Label Encoding and One-Hot Encoding are interchangeable and can be used in the same situations flawlessly.
Think about when each encoding method is appropriate.
Given a dataset with missing values in both categorical and numerical columns, design a preprocessing pipeline to handle this before model training.
Consider how you would apply each imputer to different columns within the dataset.
Critique a preprocessing workflow that ignores scaling and encoding in a model that heavily relies on feature interaction. What are potential outcomes?
Think about the effects of unprocessed data on a model's ability to learn from features.
6 more questions in this section. Enroll free to practise them all.
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