Unit 2 Chapter 3

Structured representation of raw input data to meaningful ___ is called a model.

• pattern

• data

• object

• none of the above

For supervised learning we have ____ model.

• interactive

• predictive

• descriptive

• prescriptive

For unsupervised learning we have ____ model.

• interactive

• predictive

• descriptive

• prescriptive

Which of the following measure is not used for a classification model?

• Accuracy

• Recall

• Purity

• Error rate

Which of the following is a performance measure for regression?

• Accuracy

• Recall

• RMSE

• Error rate

Which of the following is the measure of cluster quality?

• Purity

• Recall

• Accuracy

• None of the above

Out of 200 emails, a classification model correctly predicted 150 spam emails and 30 ham emails. What is the accuracy of the model?

• 10%

• 90%

• 80%

• None of the above

Out of 200 emails, a classification model correctly predicted 150 spam emails and 30 ham emails. What is the error rate of the model?

• 10%

• 90%

• 80%

• None of the above

There is no one model that works best for every machine learning problem. This is stated as

• Fit gap model theorem

• One model theorem

• Free lunch theorem

• No free lunch theorem

LOOCV in machine learning stands for

• Love one-out cross validation

• Leave-one-out cross-validation

• Leave-object oriented cross-validation

• Leave-one-out class-validation