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R. Schank, Conceptual Dependency: A Theory of Natural Language Understanding. Cognitive Psychology, 3 (4), 1972.

Author of the summary: J. William Murdock, 1997, murdock@cc.gatech.edu

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Keywords: Conceptual Dependency, Natural Language

Systems: A system is implied but only the theory is presented

Summary: Argues that natural language understanding needs to be
conducted in a broader context of reasoning.  Introduces the notions
of conceptualizations and concepts which are units of meaning loosely
corresponding to the grammatical units of clauses and words.  Further
introduces four classes of concepts, picture producers (PP's), actions
(ACT's), picture aiders (PA's), and action aiders (AA's) which very
loosely correspond to the syntactic categories of nouns, verbs,
adjectives, and adverbs respectively.  Presents a formalism called
C-diagrams which represent relationships (i.e. "dependencies") between
concepts and conceptualizations.  Describes the components of a
sentence processing system within this ontology.  Presents the
language of C-diagram in enormous depth.  Describes the processing
which goes into forming such representations including resolution of
issues such as meaningfulness constraints, syntactic ambiguity,
semantic ambiguity, etc.  Looks at the issues of intensionality,
causation, and expectation within this framework.  Discusses the topic
of drawing inferences about world states from the content of
utterances.  Briefly introduces the issue of early natural language
processing by young children.

Summary author's notes:

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