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

True false question 12 3 points saved saved the naive

Info icon This preview shows pages 4–5. Sign up to view the full content.

View Full Document Right Arrow Icon
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
Image of page 4

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
5/22/2018 Take Test: Quiz 2 – 2018 Semester 1 - QBUS3820 Machine ... https://elearning.sydney.edu.au/webapps/assessment/take/launch.jsp?course_assessment_id=_140479_1&course_id=_81664_1&content_id=_5097409_1&step=null 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
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern