Podcast
Questions and Answers
What is the primary goal of assigning new objects to labeled classes?
What is the primary goal of assigning new objects to labeled classes?
- To derive a function or rule (correct)
- To separate two populations
- To evaluate the classification procedure
- To calculate the cost of misclassification
What is represented by 𝝅𝟏 and 𝝅𝟐 in the text?
What is represented by 𝝅𝟏 and 𝝅𝟐 in the text?
- The probabilities of misclassification
- The random variables
- The populations being classified (correct)
- The cost of misclassification
What is the purpose of evaluating a classification rule?
What is the purpose of evaluating a classification rule?
- To result in few misclassifications (correct)
- To minimize the cost of misclassification
- To compare two populations
- To maximize the number of misclassifications
What is the formula for the expected cost of misclassification (ECM)?
What is the formula for the expected cost of misclassification (ECM)?
What is the purpose of a confusion matrix?
What is the purpose of a confusion matrix?
What approach to classification is mentioned in the text?
What approach to classification is mentioned in the text?
What is a key assumption of Linear Discriminant Analysis (LDA)?
What is a key assumption of Linear Discriminant Analysis (LDA)?
What is the goal of Linear Discriminant Analysis (LDA)?
What is the goal of Linear Discriminant Analysis (LDA)?
When should you transform your predictor variables before performing LDA?
When should you transform your predictor variables before performing LDA?
What should you do to the predictor variables before performing LDA?
What should you do to the predictor variables before performing LDA?
What is the purpose of finding linear combinations of predictors in LDA?
What is the purpose of finding linear combinations of predictors in LDA?
What should you check before performing LDA?
What should you check before performing LDA?
Who originally developed discriminant analysis in 1936?
Who originally developed discriminant analysis in 1936?
What is the main purpose of discriminant analysis?
What is the main purpose of discriminant analysis?
What type of predictor variables can discriminant analysis work with?
What type of predictor variables can discriminant analysis work with?
When can logistic regression be used?
When can logistic regression be used?
What is the goal of classification in discriminant analysis?
What is the goal of classification in discriminant analysis?
What is the advantage of discriminant analysis over logistic regression?
What is the advantage of discriminant analysis over logistic regression?
