The definition of α-cut and Zadeh s extension principle are applied to transforming multiple-server fuzzy queues,of which the arrival rate and service rate are both fuzzy numbers,into conventional multiple-server queues.

Aimed at decomposition theorems and representation theorems on interval-valued fuzzy set,the maximal and minimal extension principles on interval-valued fuzzy set are put forward and their properties are discussed.

Atanassov,it first gives the definition of the intuitionistic fuzzy normal subgroups and extension principle with respect to the intuitionistic fuzzy sets,and obtain some basic operation properties.

Comparing initial model with revised model and expanded model, we found that the results based on initial model are quite different from the actual conditions, while the results based on revised model and expanded model fit the actual cond.

The FEM program is proven to be effective, and the Cosserat expanded model which complements the parameter equivalent method is one of effective methods for solving interlayered rock mass question.

Research of Data Mining Based on Concept Lattice and Its Extended Models;

Then it describes the extended model of the fuzzy cognitive map and ma.