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Roger Carl Schank (March 12, 1946 – January 29, 2023) was an American artificial intelligence theorist, cognitive psychologist, learning scientist, educational reformer, and entrepreneur. Beginning in the late 1960s, he pioneered conceptual dependency theory (within the context of natural language understanding ) and case-based reasoning ...
Conceptual dependency theory is a model of natural language understanding used in artificial intelligence systems. Roger Schank at Stanford University introduced the model in 1969, in the early days of artificial intelligence. [ 1 ]
Roger Schank, Robert P. Abelson and their research group, extended Tomkins' scripts and used them in early artificial intelligence work as a method of representing procedural knowledge. [1] In their work, scripts are very much like frames, except the values that fill the slots must be ordered. A script is a structured representation describing ...
In 1969 Roger Schank introduced the conceptual dependency theory for natural language understanding. [3] This model, partially influenced by the work of Sydney Lamb, was extensively used by Schank's students at Yale University, such as Robert Wilensky, Wendy Lehnert, and Janet Kolodner.
In the 1980s, David Rumelhart extended Minsky's ideas, creating an explicitly psychological theory of the mental representation of complex knowledge. [24] Roger Schank and Robert Abelson developed the idea of a script, which was known as a generic knowledge of sequences of actions. This led to many new empirical studies, which found that ...
In 1969, Roger Schank at Stanford University introduced the conceptual dependency theory for NLU. [12] This model, partially influenced by the work of Sydney Lamb, was extensively used by Schank's students at Yale University, such as Robert Wilensky, Wendy Lehnert, and Janet Kolodner.
An image schema (both schemas and schemata are used as plural forms) is a recurring structure within our cognitive processes which establishes patterns of understanding and reasoning. As an understudy to embodied cognition , image schemas are formed from our bodily interactions, [ 1 ] from linguistic experience, and from historical context.
The notion that beliefs, attitudes, and ideology were deeply connected knowledge structures was contained in Scripts, Plans, Goals, and Understanding (1977, with Roger Schank), a work that has collected several thousand citations, and led to the first interdisciplinary graduate program in cognitive science at Yale. His work on voting behavior ...