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Example of Knowledge Base

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Presentation on theme: "Example of Knowledge Base"— Presentation transcript:

1 Example of Knowledge Base

2 Knowledge Base: example
According to American Law, selling weapons to a hostile nation is a crime The state of Nono, is an enemy, it has some missiles All missiles were sold to Nono by colonel West, who is an American Proof that colonel West is a criminal

3 Knowledge Base: . . . Selling weapons to a hostile nation by an American is a crime: American(x) ^ Weapon(y) ^ Sells(x, y, z) ^ Hostile(z)  Criminal(x) Nono Has some missiles, i.e. Exists x Owns(Nono, x) ^Missile(x): Owns(Nono, M1) ^ Missile(M1) . . . All missiles were sold to Nono by colonel West ForAll x Missile(x) ^ Owns(Nono, x)  Sells(West, x, Nono) Missiles are weapons: Missile(x)  Weapon(x) Enemy of America is Hostile: Enemy(x, America)  Hostile(x) West, is an American. . . American(West) State Nono, is an enemy of America.. . . Enemy(Nono, America)

4 Forward Chaining: example

5 Forward Chaining: example

6 Forward Chaining: example

7 Backward Chaining: example

8 Backward Chaining: example

9 Backward Chaining: example

10 Backward Chaining: example

11 Backward Chaining: example

12 Backward Chaining: example

13 Backward Chaining: example

14 Resolution: example


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