MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

MACHINE LEARNING

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When performing regression or classification, which of the following is the correct way to preprocess the data?
A
Normalize the data
B
PCA
C
Normalize the data
D
None of the above
Explanation: 

Detailed explanation-1: -22. A correct way to preprocess the data When performing regression or classification is. Explanation: A correct way to preprocess the data When performing regression or classification is “Normalize the data → PCA → training”.

Detailed explanation-2: -Gaussian processes can also be used both for regression and classification.

Detailed explanation-3: -K-nearest neighbors (kNN) is a supervised learning algorithm that can be used to solve both classification and regression tasks. The main idea behind kNN is that the value or class of a data point is determined by the data points around it.

Detailed explanation-4: -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). Choose k to be the largest value so that 99% of the variance is retained.

There is 1 question to complete.