Grainger Corporate Services Applied Scientist Interview Questions
The questions to prepare for a Grainger Corporate Services Applied Scientist interview. Questions from real interview reports rank first. Updated weekly.
Build a classifier for a highly imbalanced dataset and choose training and evaluation methods that surface rare positives.
Grainger Corporate ServicesTests ML fundamentals and model-selection judgment between boosting and deep learning.
Grainger Corporate ServicesDesign an end-to-end product recommendation system for a large e-commerce marketplace with strict latency and freshness needs.
Grainger Corporate ServicesDesign a recommendation system strategy for model cold start and new-user cold start, including serving, evaluation, and safe rollout.
Grainger Corporate ServicesExplain how TF-IDF differs from word embeddings, and when each representation is a better fit for an NLP task.
Grainger Corporate ServicesTests practical SQL performance tuning for large-scale joined datasets.
Grainger Corporate ServicesTests NLP understanding and practical fine-tuning for industrial search relevance.
Grainger Corporate ServicesTests ability to use window functions for sessionization and time-gap features.
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Calculate the monthly spending trends for customers using window functions and joins.
The Home Depot
Aviso
World Wide TechnologyAggregate user activity by week, then use LAG to compare sessions and watch time versus the prior active week.
B Lab Global
Tapad
ScaleUse LAG to compare an operational KPI week over week and surface absolute and percentage change.
GIC
Uber Freight
Corsair