Method and apparatus for inference

Details Method and apparatus for inference Method and apparatus for inference

1988-11-17

1990-10-30

Smith, Jerry

Boots, shoes, and leggings

364200, 364900, G09B 712, G06F 1200, G06F 700

Patent

active

049673718

ABSTRACT:
A method of inference using frame-based knowledge representation which enable the simultaneous realization of high accuracy and high speed in the process of inference is disclosed. The method includes the steps of accompanying each slot with procedure information which indicates procedure for deriving the slot value of the slot from the other slot values, providing pointer information indicating the slots related to each other by the procedure indicated by the procedure information, accompanying each slot with sign information which indicates the validity of the slot value currently given, deriving the slot value in accordance with the procedure indicated by the procedure information when the slot value is missing and when the slot value is indicated by the accompanying sign information as invalid, changing the indication of the sign information accompanying the slots which are indicated by the pointer information as being related to the slot whose slot value is derived, and caching in the derived slot value. An apparatus for performing this method is also disclosed.

REFERENCES:
patent: 4591983 (1986-05-01), Bennett et al.
patent: 4648044 (1987-03-01), Hardy et al.
patent: 4658370 (1987-04-01), Erman et al.
patent: 4670848 (1987-06-01), Schramm
patent: 4675829 (1989-06-01), Clemenson
patent: 4803642 (1989-02-01), Muranaga
patent: 4866635 (1989-09-01), Kahn et al.

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