Asked at 1 company1RegularizationCross-ValidationFeature Engineering
Also asked at
Problem
Scenario
You're training a supervised model and have a large set of candidate features, some of which may be redundant, noisy, or unstable across samples.
Question
How would you approach feature selection for a model?
Example Dataset
Size·1.2M TikTok For You impressions, 180 candidate featuresTarget·Binary engagement labelClass balance·14% positiveFeature types·Numerical, categorical, recency, count, and cross features
Problem
Scenario
You're training a supervised model and have a large set of candidate features, some of which may be redundant, noisy, or unstable across samples.
Question
How would you approach feature selection for a model?
Example Dataset
Size·1.2M TikTok For You impressions, 180 candidate featuresTarget·Binary engagement labelClass balance·14% positiveFeature types·Numerical, categorical, recency, count, and cross features
Your answer
Try one AI text evaluation on us
Get structured feedback, scored against a 4-axis rubric. Premium unlocks unlimited.
0 wordstarget ~200
Feature Selection for Supervised Models | Dataford Interview Questions - Dataford - Ace your Interview