COMP9414: Artificial Intelligence

1. Suppose we have the following rule R1:
   if (P1 and P2 and P3) or (P4 and not P5 then C1 (0.7) and C2 (-0.5)

   and the certainty factors of P1, P2, P3, P4, P5 are as follows:

   CF(P1) = 0.8,
   CF(P2) = 0.7,
   CF(P3) = 0.6,
   CF(P4) = 0.9,
   CF(P5) = -0.5,

   What are the certainty factors associated with conclusions C1 and C2 after using rule R1?

2. The final answers to the previous question are CF_R1(C1) = 0.42 and CF_R1(C2) = -0.3. Suppose that we have, from another rule R2, the following certainty factors for C1 and C2:

   CF_R2(C1) = 0.7,
   CF_R2(C2) = -0.4

   What are the certainty factors associated with C1 and C2 after combining the evidence from rules R1 and R2?

CRICOS Provider Code No. 00098G
Copyright (C) Bill Wilson, 2002, except where another source is acknowledged.