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Logical Agents ??????? ?????

Logical Agents ??????? ?????

Logical Agents ??????? ?????. Chapter 7 (part 2) Modified by Vali Derhami. Proof methods. Proof methods divide into (roughly) two kinds: Application of inference rules Legitimate (sound) generation of new sentences from old

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558 views • 46 slides
Logic

Logic

Logic. Knowledge-based agents. Knowledge base (KB) = set of sentences in a formal language Declarative approach to building an agent (or other system): Tell it what it needs to know What the agent can do is determined by what it knows

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562 views • 41 slides
Logic

Logic

Logic. Knowledge-based agents. Knowledge base (KB) = set of sentences in a formal language Declarative approach to building an agent (or other system): Tell it what it needs to know Then it can ask itself what to do - answers should follow from the KB

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605 views • 41 slides
Proof methods

Proof methods

Proof methods. Proof methods divide into (roughly) two kinds: Application of inference rules Legitimate (sound) generation of new sentences from old Proof = a sequence of inference rule applications Can use inference rules as operators in a standard search algorithm

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683 views • 37 slides
Inference in First-Order Logic

Inference in First-Order Logic

Inference in First-Order Logic. ????? ?????????? ??????? ??? (karma@pusan.ac.kr). Outline. Reducing first-order inference to propositional inference Unification Generalized Modus Ponens Forward chaining Backward chaining Resolution. Universal instantiation (UI).

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440 views • 34 slides
Logic: The Big Picture

Logic: The Big Picture

Logic: The Big Picture. Propositional logic: atomic statements are facts Inference via resolution is sound and complete (though likely computationally intractable) First-order logic: adds variables, relations, and quantification

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217 views • 13 slides
Inference in First-Order Logic

Inference in First-Order Logic

20. Inference in First-Order Logic. Inference in FOL can be done by converting the KB to propositional logic and using propositional inference . Basically, we need convert sentences with quantifiers to corresponding sentences without quantifiers. Recall.

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275 views • 9 slides

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