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11 lines
604 B
11 lines
604 B
2 years ago
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Exercise 4.67: Devise a way to install a loop
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detector in the query system so as to avoid the kinds of simple loops
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illustrated in the text and in Exercise 4.64. The general idea is that
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the system should maintain some sort of history of its current chain of
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deductions and should not begin processing a query that it is already working
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on. Describe what kind of information (patterns and frames) is included in
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this history, and how the check should be made. (After you study the details
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of the query-system implementation in 4.4.4, you may want to
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modify the system to include your loop detector.)
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