Artificial Intelligence: A Modern Approach
Artificial Intelligence: A Modern Approach
3rd Edition
ISBN: 9780136042594
Author: Stuart Russell, Peter Norvig
Publisher: Prentice Hall
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Chapter 3, Problem 8E

a.

Explanation of Solution

Reason:

  • Any path that may appear to be bad, but might lead to an arbitrarily large reward (negative cost)...

b.

Explanation of Solution

Effects of insisting that step costs should be greater than or equal to some negative constant:

  • If the greatest possible reward is assumed to be “c”.
  • Then if the maximum depth of the state space (e.g. when the state space is a tree) is also known, then any path with d levels r...

c.

Explanation of Solution

Justification:

  • In the given case, a set of actions is given that forms a loop in the state space such that executing the set in different order results in no net change to the state...

d.

Explanation of Solution

State-space search:

  • Value of a scenic loop is decreased each time it is revisited; a novel scenic sight is a great reward.
  • But seeing the same one for the tenth time in an hour is tedious and not rewarding...

e.

Explanation of Solution

Real domain example:

  • There are many real domain examples that include steps that may cause looping...

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