Top 50+ Solved Introduction to Machine Learning MCQ Questions Answer
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Q. To find the minimum or the maximum of a function, we set the gradient to zero because:
a. The value of the gradient at extrema of a function is always zero
b. Depends on the type of problem
c. Both A and B
d. None of the above
Q. Which of the following techniques can not be used for normalization in text mining?
a. Stemming
b. Lemmatization
c. Stop Word Removal
d. None of the above
Q. In which of the following cases will K-means clustering fail to give goodresults? 1) Data points with outliers 2) Data points with different densities 3) Data points with nonconvex shapes
a. 1 and 2
b. 2 and 3
c. 1 and 3
d. All of the above
Q. Which of the following is a reasonable way to select the number ofprincipal components "k"?
a. Choose k to be the smallest value so that at least 99% of the varinace is retained.
b. Choose k to be 99% of m (k = 0.99*m, rounded to the nearest integer).
c. Choose k to be the largest value so that 99% of the variance is retained.
d. Use the elbow metho
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