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Unformatted text preview: laFon professor Obje thinks A single proposiFon ct Agent chalkboard ACT model RelaFon dusty ACT model ProposiFon: Kind of like a sentence, but one sentence can contain mul@ple proposiFons ProposiFon: Kind of like a sentence, but one sentence can contain mul@ple proposiFons [The class knows [The professor thinks [the chalkboard is dusty]]] Agent Agent class Obje RelaFon thinks ct Agent professor chalkboard RelaFon thinks Obje Agent ct Agent chalkboard RelaFon dusty black RelaFon RelaFon dusty Agent chalkboard RelaFon dusty 7 2/10/13 ACT model ACT model Another issue: what about par%cular instances? Agent chalkboard RelaFon Agent Not really what we mean. dusty ACT model type •  Spreading acFvaFon Compare to semanFc vs. episodic. token –  Nodes acFvate, intersect if connected to same proposiFon –  Have you seen this sentence? token Agent chair blue ACT model Another issue: what about par%cular instances? Type ­token dis%nc%on: A type is just a class of objects/things; a token is a parFcular instance of that class. RelaFon chair RelaFon •  The chalkboard is dusty •  The professor is dusty blue type Agent chair X RelaFon Agent blue Is ­a chair dusty Agent RelaFon professor hungry …{knowledge about chairs} ACT model •  The ev...
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