Abstract:

The concept of intervalvalued triangular fuzzy soft set is presented and the relative operations and properties are discussed for improving the fuzzy soft theory. A dynamic decision making model is established based on the definition of intervalvalued triangular fuzzy soft set, in which the determination of period weights is by the use of exponential decay method, and the arithmetic weighted average operator of intervalvalued triangular fuzzy soft set has been given by the aggregating thought, thereby aggregating different timeseries intervalvalued triangular fuzzy soft sets into a collective intervalvalued triangular fuzzy soft set. The formulas of different objects selection and decisionmaking value have been given, therefore the optimal decisionmaking is achieved according to the size of the decision values. Finally, the steps of the proposed method have been concluded, and some examples are given to explain the application of the method.