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For which problems is local search appropriate?

  • A.Those in which actions are irreversible once taken
  • B.Those where the goal state matters and the path does not
  • C.Those with very small state spaces that can be enumerated
  • D.Those requiring a provably optimal solution to be returned

Answer: B

In scheduling, layout and configuration problems the answer is the final arrangement rather than the sequence of edits that produced it, so nothing is lost by forgetting the path. Small spaces admit anything, provable optimality is exactly what local search sacrifices, and irreversibility is unrelated. Asking whether the path is part of the answer is the first test of whether local search applies, and it is a question about the problem rather than about the algorithm.

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