Trapezoidal approximation and aggregation
Trapezoidal approximation of fuzzy numbers is discussed in relation to data aggregation. An important problem whether it is better to simplify initial data before using an aggregation operator or conversely, to aggregate original fuzzy values and then to simplify the output is addressed. (C) 2011 Elsevier B.V. All rights reserved.
trapezoidal approximation aggregation approximation of fuzzy numbers fuzzy number expected interval