Chen, Xiaoguo; Du, Hong; Yang, Yue The interval-valued triangular fuzzy soft set and its method of dynamic decision making. (English) Zbl 1437.03152 J. Appl. Math. 2014, Article ID 132806, 12 p. (2014). Summary: A concept of interval-valued triangular fuzzy soft set is presented, and some operations of “AND,” “OR,” intersection, union and complement, and so forth are defined. Then some relative properties are discussed and several conclusions are drawn. A dynamic decision making model is built based on the definition of interval-valued triangular fuzzy soft set, in which period weight is determined by the exponential decay method. The arithmetic weighted average operator of interval-valued triangular fuzzy soft set is given by the aggregating thought, thereby aggregating interval-valued triangular fuzzy soft sets of different time-series into a collective interval-valued triangular fuzzy soft set. The formulas of selection and decision values of different objects are given; therefore the optimal decision making is achieved according to the decision values. Finally, the steps of this method are concluded, and one example is given to explain the application of the method. Cited in 1 Document MSC: 03E72 Theory of fuzzy sets, etc. 91B06 Decision theory 91B86 Mathematical economics and fuzziness PDF BibTeX XML Cite \textit{X. Chen} et al., J. Appl. Math. 2014, Article ID 132806, 12 p. (2014; Zbl 1437.03152) Full Text: DOI References: [1] Zou, Y.; Xiao, Z., Data analysis approaches of soft sets under incomplete information, Knowledge-Based Systems, 21, 8, 941-945 (2008) [2] Zadeh, L. A., Fuzzy sets, Information and Control, 8, 3, 338-353 (1965) · Zbl 0139.24606 [3] Pawlak, Z., Rough sets, International Journal of Computer and Information Sciences, 11, 5, 341-356 (1982) · Zbl 0501.68053 [4] Gorzałczany, M. 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