This paper presents the large scale systems software packages SISCON used to assess optimal decisions of large scale industrial systems. In the beginning SISCON software packakges assess mathematical models developed based on experimental data, that have used LS models for linear and non-linear...

This work constructs the membership functions of the system characteristics of a retrial queueing model with fuzzy customer arrival, retrial and service rates. The α-cut approach is used to transform a fuzzy retrial-queue into a family of conventional crisp retrial queues in this context. By...

In this paper we use Lagrange interpolation polynomials to obtain good gradient estimations.This is e.g. important for nonlinear programming solvers.As an error criterion we take the mean squared error.This error can be split up into a deterministic and a stochastic error.We analyze these errors...