Fuzzy sets, decision making and expert systems
Fuzzy sets, decision making and expert systems
An efficient algorithm for fuzzy weighted average
Fuzzy Sets and Systems
Fuzzy decision support system for risk analysis in e-commerce development
Decision Support Systems
Software Engineering
Threats Identification in Healthcare Information Systems Using Genetic Algorithm and Cox Regression
IAS '09 Proceedings of the 2009 Fifth International Conference on Information Assurance and Security - Volume 02
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This research attempts to develop fuzzy based threat analysis model in which; linguistic variable, fuzzy number and fuzzy weighted average are applied to deal with the uncertainty problem in potential threats evaluation in Total Hospital Information System (THIS) environment. In fuzzification process, Triangular Average Number technique using two sets of membership functions was applied to evaluate "likelihood" and "consequence" of THIS threat variables upon a particular THIS asset. Then, each security threat level was aggregated using Efficient Fuzzy Weighted Average (EFWA) algorithm. Finally, Best Fit Technique is used in defuzzification process to translate a single fuzzy value to linguistic terms that indicates the overall security threat level impact on THIS asset. To confirm the effectiveness of this adopted model, prototype is developed and verified using scenario method. Finding shown that this model, is capable to perform threat analysis with incomplete information and uncertain in THIS environment.