Devalore Data Scientist Interview Questions
The questions to prepare for a Devalore Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
DevaloreDesign a personalized e-commerce recommendation system with retrieval, ranking, feature engineering, and cold-start handling.
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Design an end-to-end product recommendation system for a large e-commerce marketplace with strict latency and freshness needs.
DevaloreIdentify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
DevaloreInvestigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.
DevaloreExplain how to test whether an observed experiment lift is real using hypothesis testing, p-values, and confidence intervals.
DevaloreExplain which classification metrics to use and how metric choice depends on the business objective and error tradeoffs.
DevaloreEvaluates your product thinking and ability to define metrics that drive outcomes.
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