schema based SQL questions purely depends upon your understanding.
Sr Data Scientist Interview Questions
3,389 sr data scientist interview questions shared by candidates
Explain a project you worked on. Then asked follow up questions on data and what techniques I used.
1. How is word transformers different from Sentence transformers. 2. Scenario based questions. 3. When to use F1 Score, Precision, Recall Score 4. Clustering before train test split or after train test split. 5. I was surprised on this question. Do SMOTE increase your test data sample size as well 6. Scaling - MinMax, Standard and Robust Scaler 7. When to use class weights and oversampling/Undersampling ( No one can get it right at the first time). I wont recommend for someone who has good experience in Data Science. In my decade of taking/giving data Science interviews, this has to be rated as my worst experience.
Let's say you have worked on binary classifier random forest model, and both the classes recieved equal number of votes. How will you proceed further, what is your logic behind it?
Parlaci della tua esperienza.
The ultimate goal of the data science assignment was to develop a price prediction model for listed properties.
Basic SQL questions: 1. SQL with where clause 2. SQL with where clause and having clause 3. Left join and filter condition If you have worked on SQL you would be able to write them
One extremely poorly worded question was to explain the best practices around using logistic regression.
Do you have experience with machine learning?
What is your management style?
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