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Which property of working memory does Rete exploit?

  • A.It contains far fewer facts than the knowledge base contains rules in a typical system
  • B.It is stored in sorted order
  • C.It holds only assertions that have already been confirmed by the user of the system
  • D.It changes only slightly between cycles

Answer: D

Temporal redundancy means most facts survive from one cycle to the next, so rebuilding every match from scratch repeats almost all of the previous work. Rete stores the partial matches and updates them incrementally. Relative sizes, sort order and confirmation status are not what the algorithm depends on. Naming the property rather than the network is what lets you predict when Rete will and will not help. The quantity that varies and the quantity that does not are worth naming before any substitution is attempted.

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