Take Test_ Quiz 2 – 2018 Semester 1 - QBUS3820 Machine .._ copy.pdf

# True false question 12 3 points saved saved the naive

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True False QUESTION 12 3 points Saved Saved The Naive Bayes classifier method is very prone to overfitting given its high complexity. True False QUESTION 13 3 points Saved Calculate the degrees of freedom for a linear spline with 3 knots. 5 QUESTION 14 6 points Saved Saved When the tuning parameter lambda in the smoothing spline optimization problem is set to zero, the solution is a linear function. True False QUESTION 15 3 points Saved Saved Consider a (spline) regression method that has exactly one knot and fits a piecewise cubic polynomial regression with only one restriction: the regression function has to be continuous. Calculate the degrees of freedom for such a method. 7 QUESTION 16 7 points Saved Saved The solution to the smoothing spline optimization problem is a natural cubic spline. True False QUESTION 17 3 points Saved

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5/22/2018 Take Test: Quiz 2 – 2018 Semester 1 - QBUS3820 Machine ... Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Save All Answers Save and Submit Which of the following is true? GAM is a special case of regression splines GAM provides an easy way to model interactions among the predictors. Smoothing splines always have at least 4 degrees of freedom Regression splines can be used as building blocks for GAM. QUESTION 18 6 points Saved Saved Small regression trees will generally overfit the data. True False QUESTION 19 3 points Saved Saved Bagging improves over random forests, because, unlike random forests, bagging averages predictions of many trees. True False QUESTION 20 3 points Saved
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