1 / 9

Reasoning Patterns

Representation. Probabilistic Graphical Models. Bayesian Networks. Reasoning Patterns. d 0. d 1. i 0. i 1. 0.6. 0.4. 0.7. 0.3. g 1. g 2. g 3. i 0 ,d 0. 0.3. 0.4. 0.3. i 0 ,d 1. 0.05. 0.25. 0.7. s 0. s 1. i 1 ,d 0. 0.9. 0.08. 0.02. i 0. 0.95. 0.05. i 1 ,d 1. 0.5.

jolene-williamson
Télécharger la présentation

Reasoning Patterns

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Representation Probabilistic Graphical Models Bayesian Networks Reasoning Patterns

  2. d0 d1 i0 i1 0.6 0.4 0.7 0.3 g1 g2 g3 i0,d0 0.3 0.4 0.3 i0,d1 0.05 0.25 0.7 s0 s1 i1,d0 0.9 0.08 0.02 i0 0.95 0.05 i1,d1 0.5 0.3 0.2 i1 0.2 0.8 l0 l1 g1 0.1 0.9 g2 0.4 0.6 g3 0.99 0.01 The Student Network Difficulty Intelligence Grade SAT Letter

  3. Causal Reasoning Intelligence Intelligence Difficulty Difficulty Grade SAT P(l1) ≈ 0.5 Letter P(l1 | i0) ≈ 0.39 P(l1 | i0 , d0) ≈ 0.51

  4. g1 g2 g3 i0,d0 0.3 0.4 0.3 i0,d1 0.05 0.25 0.7 i1,d0 0.9 0.08 0.02 i1,d1 0.5 0.3 0.2 Evidential Reasoning P(d1) = 0.4 P(i1) = 0.3 P(d1 | g3) ≈ P(i1 | g3) ≈ 0.63 0.08 Difficulty Intelligence Student gets a C  Grade SAT Letter

  5. Intercausal Reasoning P(d1) = 0.4 P(i1) = 0.3 P(d1 | g3) ≈ 0.63 P(i1 | g3) ≈ 0.08 P(i1 | g3, d1) ≈ 0.11 Difficulty Intelligence Class is hard! Grade SAT Student gets a C  Letter

  6. Intercausal Reasoning Explained X1 X2 Y OR

  7. Intercausal Reasoning II P(i1) = 0.3 P(i1 | g2) ≈ 0.175 P(i1 | g2, d1) ≈ 0.34 Difficulty Difficulty Intelligence Class is hard! Grade SAT g2 Student gets a B  Letter

  8. Student Aces the SAT • What happens to the posterior probability that the class is hard? Difficulty Intelligence Grade SAT Student aces the SAT  Letter Student gets a C 

  9. Student Aces the SAT P(d1) = 0.4 P(i1) = 0.3 P(d1 | g3) ≈ 0.63 P(i1 | g3) ≈ 0.08 P(d1 | g3, s1) ≈ 0.76 P(i1 | g3, s1) ≈ 0.58 Difficulty Intelligence Grade SAT Student aces the SAT  Letter Student gets a C 

More Related