Explain collaborative filtering
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If we added one rider to the current SF market, how would that affect the existing riders and drivers?
How is bagging different from boosting?
Define a sql query? What is the difference between select and update query? How do you use sql in sas, python, r languages?
Explain data cleansing?
List out the libraries in python used for data analysis and scientific computations?
How often should an algorithm be updated?
How to check the frequency distribution of a categorical variable?
Which one you prefer R or Python for text analytics?
What is jupyter ?
How is data modeling different from database design?
What is data scientist?
Why do you want to work as a data scientist?