Explain the difference between overfitting and underfitting?
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How can you measure engagement with given Twitter data?
You have two tables-the first table has data about the users and their friends, the second table has data about the users and the pages they have liked. Write an SQL query to make recommendations using pages that your friends liked. The query result should not recommend the pages that have already been liked by a user.
You are given two tables- friend_request and request_accepted. Friend_request contains requester_id, time and sent_to_id and request_accepted table contains time, acceptor_id and requestor_id. How will you determine the overall acceptance rate of requests?
What prior subject is required to become data analyst?
Can you define analytics?
When underfitting occurs in a static model?
What will be your expected earnings with the two roll strategy?
What do you mean by survival analysis in R?
Do you prefer python or r for text analytics?
What would you do to summarize a Twitter feed?
Define boltzmann machine
What is the basic responsibility of a data scientist?
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