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Netflix Data Science Interview Questions:Acing the AI Interview

- Netflix Research Blog: All Articles
- Deep Learning for Recommender Systems: Talk Slides
- Reliable ML in the Wild Workshop (ICML 2017): Making ML Reliable at Netflix
- How would you build and test a metric to compare two userâ??s ranked lists of movie/tv show preferences?How best to select a representative sample of search queries from 5 million?
- Given a monthâ??s worth of login data from Netflix such as account_id, device_id, and metadata concerning payments, how would you detect fraud? (identity theft, payment fraud, etc.)
- How would you handle NULLs when querying a data set? Are there any other ways?
- What is the use of regularization?What are the differences between L1 and L2 regularization, why donâ??t people use L0.5 regularization for instance?
- SQL queries to find time difference between two events given a certain condition.
- Given a single day with a large sample size and a significant test result, would you end the experiment?
- What do you know about A/B testing in the context of streaming?
- How do you prevent overfitting and complexity of a model? How do you measure and compare models?
- How do you know if one algorithm is better than other?
- Elaborate on the recent project you developed for your company.
- Why do you use XYZ method? Elaborate on how to improve content optimization?
- What technology or item that most people feel will be obsolete in the future do you not agree with?
- Why Rectified Linear Unit is a good activation function?
- How should we approach attribution modelling to measure marketing effectiveness?
- How would you determine if the price of a Netflix subscription is truly the deciding factor for a consumer?
- If Netflix is looking to expand its presence in Asia, what are some factors that you can use to evaluate the size of the Asia market, and what can Netflix do to capture this market?
- Say the CEO stops by your desk and asks you whether or not we should go into an untapped market. How would you determine the size of the addressable market and the factors the Netflix should consider before deciding to enter the market?