In the Naive Bayes algorithm, suppose that the prior for class w1 is greater than class w2, would the decision boundary shift towards the region R1(region for deciding w1) or towards region R2 (region for deciding w2)?
A. towards region R1.
B. towards region R2.
C. No shift in decision boundary.
D. It depends on the exact value of priors.
Answer:B
In the Naive Bayes algorithm, suppose that the prior for class w1 is greater than class w2, would the decision boundary shift towards the region R1(region for deciding w1) or towards region R2 (region for deciding w2)?
A. towards region R1. B. towards region R2. C. No shift in decision boundary. D. It depends on the exact value of priors.
Explanation: Upon shifting the decision boundary towards region R2, we preserve the prior probabilities proportion since the prior for w1 is greater than w2.