What is collaborative filtering in data science?


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More Data Science Interview Questions

How can bogus Facebook accounts be detected?

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How can you decide if one algorithm is better than the other?

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Define the term cross-validation

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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?

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What’s the difference between pip and pip3?

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Does the data scientist need to know programming?

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Differentiate between regression and classification algorithms?

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Explain the difference between Supervised and Unsupervised Learning through examples.

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Describe the data analysis process.

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How do you use goal seek in excel?

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Which package is used to do data import in r and python?

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How will you deal with unbalanced data where the ratio of negative and positive is huge?

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