gs gs120 Machine Learning - Cross Validation - Quiz No.1
gs gs120 Data Structure Quiz
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Question 1: Which of the following is correct use of cross validation?
Selecting variables to include in a model
Comparing predictors
Selecting parameters in prediction function
All of the mentioned
Question 2: Point out the wrong combination.
True negative=correctly rejected
False negative=correctly rejected
False positive=correctly identified
All of the mentioned
Question 3: Which of the following is a common error measure?
Sensitivity
Median absolute deviation
Specificity
All of the mentioned
Question 4: Which of the following is not a machine learning algorithm?
SVG
SVM
Random forest
None of the mentioned
Question 5: Point out the wrong statement.
ROC curve stands for receiver operating characteristic
Foretime series, data must be in chunks
Random sampling must be done with replacement
None of the mentioned
Question 6: Which of the following is a categorical outcome?
RMSE
RSquared
Accuracy
All of the mentioned
Question 8: Which of the following method is used for trainControl resampling?
repeatedcv
svm
bag32
none of the mentioned
Question 9: Which of the following can be used to create the most common graph types?
qplot
quickplot
plot
all of the mentioned
