Berlin, the Mother of All Research Universities: 1860-1918, McClelland Charles E.

Автор: Rogers, Timothy T. Mcclelland, James L.
Название: Semantic cognition
ISBN: 0262681579 ISBN-13(EAN): 9780262681575
Издательство: Random House (USA)
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This groundbreaking monograph offers a mechanistic theory of the representation and use of semantic knowledge, integrating the strengths and overcoming many of the weaknesses of hierarchical, categorization-based approaches, similarity-based approaches, and the approach often called "theory theory." Building on earlier models by Geoffrey Hinton in the 1980s and David Rumelhart in the early 1990s, the authors propose that performance in semantic tasks arises through the propagation of graded signals in a system of interconnected processing units. The representations used in performing these tasks are patterns of activation across units, governed by weighted connections among them. Semantic knowledge is acquired through the gradual adjustment of the strengths of these connections in the course of day-to-day experience.

The authors show how a simple computational model proposed by Rumelhart exhibits a progressive differentiation of conceptual knowledge, paralleling aspects of cognitive development seen in the work of Frank Keil and Jean Mandler. The authors extend the model to address aspects of conceptual knowledge acquisition in infancy, disintegration of conceptual knowledge in dementia, "basic-level" effects and their interaction with expertise, and many findings introduced to support the idea that semantic cognition is guided by naive, domain-specific theories.

Автор: Benson George Charles Sumner, Diamond Martin, McClelland Harold F.
Название: Essays in Federalism
ISBN: 1258440644 ISBN-13(EAN): 9781258440640
Издательство: Неизвестно
Цена: 5876.00 р.
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Автор: McClelland Charles E.
Название: Queen of the Professions: The Rise and Decline of Medical Prestige and Power in America
ISBN: 1442226307 ISBN-13(EAN): 9781442226302
Издательство: Rowman & Littlefield Publishers
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Описание: Queen of the Professions: The Rise and Decline of Medical Prestige and Power in America is a colorful yet authoritative work of social history offering readers a sturdy platform from which to confront looming issues about the future of American medical care. Its unique perspective brings crucial context to current debates about modern medicine.