Use of Fuzzy Systems for Vulnerability Evaluation: An Example of a Container Terminal

Abstract

This paper investigates the use of a fuzzy system to evaluate vulnerability with performance indicators. First, the use of fuzzy logic and performance indicators for vulnerability assessment are shown, then the fuzzy systems used in this study are described, using different examples. This is followed by a comprehensive comparison carried out to investigate how different vulnerability values change depending on the examples. Results indicates that the shape and the number of the membership functions have a strong influence on the resulting vulnerability. Hence, the shape and the number of the membership functions should be considered carefully. Further, the use of various inference methods has no impact on the vulnerability.