What is collaborative filtering in data science?
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How can bogus Facebook accounts be detected?
How can you decide if one algorithm is better than the other?
Define the term cross-validation
What are the metrics you will use to track if Uber's paid advertising strategies to acquire customers work? How will you figure out the acceptable cost of customer acquisition?
What’s the difference between pip and pip3?
Does the data scientist need to know programming?
Differentiate between regression and classification algorithms?
Explain the difference between Supervised and Unsupervised Learning through examples.
Describe the data analysis process.
How do you use goal seek in excel?
Which package is used to do data import in r and python?
How will you deal with unbalanced data where the ratio of negative and positive is huge?