The Modeling of Cognitive Relevance and the Actural Study based on the Experiments of Sentence Comprehension

点击翻译按钮获取中文摘要

Logical reasoning is fundamental to human intelligence, but the logical processing system of cognitive agents is different from propositional logic, especially on solving problems which are linked with the counterposition. This is partly because a cognitive agent cannot acquire every essential information for reasoning because of our limited capacity. Therefore, our cognitive system is expected to find the narrow optimal relevance information. Relevance theory (Sperber and Wilson 1986) is based on a definition of relevance and two principles of relevance. One of the principles, called Cognitive Principle, means that human cognition is geared to the maximisation of relevance. This research proposes the frame work of multiple-valued logic based on the philosophy of the cognitive principle, and reveals the effect of both settledness and relevance of information on everyday reasoning including of the interpretation process of the various types of conditionals in Japanese.