exam%20preparation - Midterm Preparation PEAS(define it and...

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Midterm Preparation
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PEAS (define it and also explain what each letter stands for) PEAS is a description of an agent designed to perform a task. P = performance measure, E = task environment, A = actuators, and S = sensors. rational agent A rational agent is one that, given a percept sequence, takes the action expected to maximize its performance measure given its knowledge about the world. goal-based agent A goal-based agent is one that acts to achieve some pre- defined goal. It is usually able to estimate how far away it is from that goal.
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Show the result of carrying out alpha-beta pruning on the game tree shown below. What is the best move for MAX? What is the value of the game?
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Is it forward chaining or backward chaining that runs a greater risk of not being a complete search technique in first-order logic? What is a main advantage of A* search over hill- climbing search? In what way is iterative deepening better than depth- first search? In what way is it better than breadth first?
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Trace the workings of the Davis-Putnam procedure on the set of clauses. 1. P V ~Q V ~S. 2. P V ~Q V R. 3. ~P V Q V R 4. ~P V ~S. 5. ~P V ~Q. 6. Q V S. 7. Q V Z. 8. ~R V S.
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Step 1: Z is a pure literal. Assign Z=TRUE. Delete clause 7.
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