A computer system for inference execution and data retrieval
Communications of the ACM
Experiments with a deductive question-answering program
Communications of the ACM
A computer program which "understands"
AFIPS '64 (Fall, part I) Proceedings of the October 27-29, 1964, fall joint computer conference, part I
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We describe a "QUESTION-ANSWER" information system implemented on computer BESM-6 in the time-shared system. The "QUESTION-ANSWER" system is capable of deducing facts that have not been explicitly given to it by using a large data base and interpreting some of data as rules of inference. The system employs a special procedure which allows not to use contradictory information even if it is contained in the data base.