What is the difference between kmeans clustering and hierarchical clustering?
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Which language is best for text analytics? R or python?
A stranger uses a search engine to find something and you do not know anything about the person. How will you design an algorithm to determine what the stranger is looking for just after he/she types few characters in the search box?
What are essential skills and training needed in data Science?
How do you build a custom function in python or r?
while working on a data set, how can you select important variables? Explain
How different is a mean value different from expected value?
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?
Could you draw a comparison between overfitting and underfitting?
What are outlier values and how do you treat them?
What is the 80/20 rule? Explain its importance in model validation?
List the variants of backpropagation?
What will be the output of runif (7)?
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