How can I achieve accuracy in the first model that I built?
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In k-means or knn, we use euclidean distance to calculate the distance between nearest neighbors. Why not manhattan distance?
Name some kinds of graphs and explain how you would build them in python or r.
What are outlier values and how do you treat them?
Can you use a generator to create iterators?
What is the job description for a data scientist?
What is logistic and linear regression? How do you treat multicollinearity and heteroscedasticity in regression? Name some packages in r and python for building regression models.
What is meant by lattice?
Can you explain data munging or data wrangling?
Explain the difference between data modeling and database design?
Which is the best suitable language among python and r for text analytics?
What cross validation technique would you use on time series data set? Is it k-fold or loocv?
How do you overcome challenges to your findings?