Expedia Interview Questions
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Lead alignment under ambiguity and pressure
Behavioral/Leadership Case: Resolving KPI Misalignment Under Time Pressure Context You are a data scientist preparing for an onsite interview. Multipl...
Audit and onboard unfamiliar datasets safely
You inherit unfamiliar hotel search data with sparse documentation. Provide a concrete, ordered checklist to: a) discover tables/columns and verify pr...
Validate and monitor ranking model end-to-end
Expedia Hotel-Ranking Model: Evaluation, Metrics, Diagnostics, Rollout, and KPI Alignment Context: You are building a learning-to-rank (LTR) model to ...
Choose KPIs and prove impact with experiments
Expedia Search: Profit-Focused Ranking Launch (Onsite) Context You’re on the Search team launching a new hotel-ranking model for enterprise clients wh...
Count vowel-only substrings with all vowels
Given a lowercase English string s, return the number of contiguous substrings that ( 1) consist only of vowels from the set {a, e, i, o, u}, and ( 2)...