Underlying ideas
Three-way decision consists of three primary components, namely, a philosophy of thinking in threes, a methodology of working in threes, and a mechanism of processing in threes. A TAO model of three-way decision is made up of trisecting (T), acting (A), and outcome (O). In such a model, we divide a whole into three parts, three units, or three perspectives, devise strategies, and apply them to the three parts in order to obtain an optimized outcome. The research article “Sec-theoretic models of three-way decision”, proposed by Dr. Yiyu Yao, investigated set-theoretic models in the framework of three-way decision.
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