SIR: a Computer Program for Semantic Information Retrieval

RAPHAEL, Bertram.

Editorial: Clearinghouse for Federal Scientific and Technical Information, Defense Documentation Center, Defense Supply Agency, U.S. Dept. of Commerce, 1964
Condición: Fine Encuadernación de tapa blanda
Librería: JF Ptak Science Books (Hendersonville, NC, Estados Unidos de America)

Librería en AbeBooks desde: 28 de junio de 2016

Cantidad: 1

Comprar usado
Precio: EUR 131,09 Convertir moneda
Gastos de envío: EUR 3,82 A Estados Unidos de America Destinos, gastos y plazos de envío
Añadir al carrito

Descripción

RAPHAEL, Bertram. SIR: a Computer Program for Semantic Information Retrieval. Published/printed by the Clearinghouse for Federal Scientific and Technical Information, Defense Documentation Center, Defense Supply Agency, U.S. Dept. of Commerce, June 1964. 156PP+12PP, plus one page of biographical information on Raphael with a bibliography including his work on LISP, the last entry dated May 1964. 11x8 inches, some sort of photomechanical reproduction; yellow wrappers, staple-bound. Fine condition.++ This is the Ph.D. dissertation by Raphael (b. 1936), with Marvin Minsky as thesis supervisor.++ Here's the abstract from an MIT publication Semantic Information Processing (1967) in which a form of this earlier paper appeared: "SIR is a computer system, programmed in the LISP language, which accepts information and answers questions expressed in a restricted form of English. This system demonstrates what can reasonably be called an ability to "understand" semantic information. SIR's semantic and deductive ability is based on the construction of an internal model, which uses word associations and property lists, for the relational information normally conveyed in conversational statements. A format-matching procedure extracts semantic content from English sentences. If an input sentence is declarative, the system adds appropriate information to the model. If an input sentence is a question, the system searches the model until it either finds the answer or determines why it cannot find the answer. In all cases SIR reports its conclusions. The system has some capacity to recognize exceptions to general rules, resolve certain semantic ambiguities, and modify its model structure in order to save computer memory space. Judging from its conversational ability, SIR, is a first step toward intelligent man-machine communication. The author proposes a next step by describing how to construct a more general system which is less complex and yet more powerful than SIR. This proposed system contains a generalized version of the SIR model, a formal logical system called SIR1, and a computer program for testing the truth of SIR1 statements with respect to the generalized model by using partial proof procedures in the predicate calculus. The thesis also describes the formal properties of SIR1 and how they relate to the logical structure of SIR."-- Dspace. N° de ref. de la librería ABE-1469808424626

Hacer una pregunta a la librería

Detalles bibliográficos

Título: SIR: a Computer Program for Semantic ...

Editorial: Clearinghouse for Federal Scientific and Technical Information, Defense Documentation Center, Defense Supply Agency, U.S. Dept. of Commerce

Año de publicación: 1964

Encuadernación: Soft cover

Condición del libro:Fine

Descripción de la librería

We have been in business since 1985--including a store in Georgetown, D.C. from 1985-2002--specializing in significant and hard-to-find works in modern (say, after 1850) physics, math, astronomy, and technology.

Ver la página web de la librería

Condiciones de venta:

All items are offered with a seven-day return privilege.

Condiciones de envío:

We ship USPS priority unless otherwise specified and charge only for the exact cost of shipping. Overseas shipping depends upon the country of destination.

Todos los libros de esta librería

Métodos de pago
aceptados por la librería

Visa Mastercard American Express Carte Bleue