Three-Way Decisions in Dynamic Decision-Theoretic Rough Sets

In the previous decision-theoretic rough sets DTRS, its loss function values are constant. This paper extends the constant values of loss functions to a more realistic dynamic environment. Considering the dynamic change of loss functions in DTRS with the time, an extension of DTRS, dynamic decision-theoretic rough sets DDTRS is proposed in this paper. An empirical study of climate policy making validates the reasonability and effectiveness of the proposed model.

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