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Lessons from Example

  • generate & test has the following characteristics:
    • it separates the different types of knowledge;
    • it is not efficient (all possible designs are generated);
    • It may not terminate if the design space is infinite.
  • From the literature on expert systems [Stefik et al., 1983]:
    • “an important issue is the distribution of knowledge between the generator and the tester: putting as much knowledge as possible into the generator often leads to a more efficient search.”
  • A much more clever strategy is therefore to use these knowledge types to guide the generation of possible designs.
  • However to do so requires strong assumptions about the domain knowledge.

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