Walmart Labs Machine Learning Interview Questions
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Walmart Labs
Medium
Data ScientistEvaluate K-Fold Cross-Validation for Model Selection
Model Selection and Validation for a New Feature Launch You are selecting and validating predictive models (supervised learning) for a new product fea...
Machine Learning
0
0
Aug 4, 2025
Walmart Labs
Medium
Data ScientistPredict Next-Period Conversion Rate Using Historical Campaign Data
Predicting Next-Period Conversion Rate from Campaign Logs Context You have historical campaign panel data with columns: adid, date, impressions, click...
Machine Learning
0
0
Aug 4, 2025