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Un-Answered Questions { Artificial Intelligence }

Why do we convert categorical variables into factor? Which function is used in r to perform the same?

117


How much data will you allocate for your training, validation and test sets?

68


What is machine learning? What is the difference between supervised and unsupervised methods?

388


How do you treat multicollinearity and heteroscedasticity in regression? Name some packages in r and python for building regression models.

371


What is logistic and linear regression?

386


How is bagging different from boosting?

417


What is an rdbms? Name some examples for rdbms? What is crud?

354


What is market basket analysis? How would you do it in r and python?

368


What is random forests?

387


How do you treat outlier data?

383


How would you say data science is similar or different to business analytics and business intelligence?

353


What is linear optimization?

364


How do you use sql in sas, python, r languages?

390


Name some packages in r and python for building regression models.

369


What is f test?

478