MACHINE LEARNING

APPLICATION OF SUPERVISED LEARNING

MACHINE LEARNING PIPELINE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A real estate company is building a linear regression model to predict housing prices for different cities in the US. Which of the following is NOT a good metric to measure performance of their regression model?
A
R-Squared value
B
F1 score
C
Mean-squared error
D
Mean absolute error
Explanation: 

Detailed explanation-1: -17. Which of the following is a reasonable way to select the number of principal components “k"? Choose k to be 99% of m (k = 0.99*m, rounded to the nearest integer).

Detailed explanation-2: -Q23) Which of the following option is true for overall execution time for 5-fold cross-validation with 10 different values of “max depth”? Each iteration for depth “2” in 5-fold cross-validation will take 10 secs for training and 2 seconds for testing. So, 5 folds will take 12*5 = 60 seconds.

There is 1 question to complete.