| Bayes’ Rule |
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| • | Bayes’
Rule underlies all modern AI |
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| systems
for probabilistic inference |
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| • | two
forms of product rule: |
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| P(AÙB) = P(A|B)
P(B) |
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| P(AÙB) = P(B|A)
P(A) |
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| • | Now
use these two to form an equation for: |
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| P(B|A)
= P(A|B) P(B) / P(A) |
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