From a convergence to a reasoning with internal-valued probability

Phan Đình Diệu, Trần Đình Quế

Abstract


Combining a deduction in a knowledge base of external uncertainty whose semantics has been proposed by  N.J.Nilsson with a deduction coming from a convergence of a sequence of operators in a knowledge base of internal uncertainty, we propose a method of reasoning in a knowledge base of the both types of uncertainty.

Let B an S be such a knowledge base and a goal sentence, respectively. The interval of truth probabilities of S derived from B can be found by the  proposed method.


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Journal of Computer Science and Cybernetics ISSN: 1813-9663

Published by Vietnam Academy of Science and Technology