Frames

• One way to extend Semantic Nets is to give structure to the node.
• We often do this with case frames to represent sentences.
• The semantics of a sentence consists of its arguments now. (consist (actor (semantics (sentence))) (object (its arguments)) (time now)).
• You can have other frames. Frames can contain frames for things like "Robert said the Beatles were the best."
• Frames are the basis of KL One, and other knowledge representation langauges.
• Frames are good for structured components of the knowledge.