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What is a frame in knowledge representation?

  • A.A structure with named slots holding an object's properties
  • B.A window of time over which a fact remains true
  • C.A boundary around the part of the world being represented
  • D.A single sentence of a logical knowledge base

Answer: A

A frame groups everything known about an object or a category into named slots with values, defaults and attached procedures, which matches how people organise knowledge and makes retrieval efficient. Frames and semantic networks are largely notational variants of each other. Temporal windows, scope boundaries and logical sentences are different notions. Organising knowledge around objects rather than around sentences is a difference of packaging that nevertheless changes what is easy to do with it.

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