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Sr Data Scientist Interview Questions
3,505 sr data scientist interview questions shared by candidates
- Modelling test (credit scoring) - Business knowledge in the financial services - Product knowledge in the financial services
The first task was to simulate diffusion limited aggregation, which isn't difficult itself. The second task is to simulate and estimate sticking probability for an aggregate. Each simulation will take hours and this is not worth it.
1. calculate some financial metrics in Python and SQL. 2. trade off in machine learning algorithms
1. Calculate streaming hours over a period of time and rank by tv show 2. What are you currently streaming
Query a table with SQL
SQL, product questions and some stats questions
How would you find out if new live content in the platform is successful?
Lots of questions on machine learning techniques, use of regularization, differences between L1 and L2 regularization, why don't people use L0.5 regularization for instance. Use of deep learning, why Rectified Linear Unit is a good activation function etc.
When you split a population for A/B testing, what are some reasons you could see a significant difference in the control and variant groups?
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