Transparent Fuzzy Systems in Modelling and Control

This chapter deals with low-level transparency of fuzzy systems that is necessary to ensure reliable interpretation of linguistic information provided by fuzzy systems. It is shown that for different types of fuzzy systems different definitions of transparency apply. Particular attention is paid to transparency protection mechanisms for data-driven optimisation algorithms such as gradient descent and genetic algorithms that otherwise would destroy the semantics of fuzzy systems in the course of optimisation. The need for transparency in fuzzy control is discussed and further illustrated by a control application of truck backer-upper.