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Full-Text Articles in Physical Sciences and Mathematics
Investigation Into Model-Based Fuzzy Logic Control, Michael W. Logan
Investigation Into Model-Based Fuzzy Logic Control, Michael W. Logan
Theses and Dissertations
This thesis investigates the feasibility of a proposed hybrid linear/Fuzzy controller for nonlinear plants. The proposed controller concept is based on the use of multiple linearizations of a nonlinear plant, which describe the dynamics of perturbations about equilibrium points throughout the desired envelope of operation. A bank of linear compensators is developed, each corresponding to a linearized plant about a different equilibrium. The multiple control signals generated by the bank of compensators are then weighted and summed using Fuzzy Logic to produce a composite control perturbation signal, which is used to drive the nonlinear plant. Experiments were conducted to test …
Vulnerability Assessment Using A Fuzzy Logic Based Method, Richard W. Fleming
Vulnerability Assessment Using A Fuzzy Logic Based Method, Richard W. Fleming
Theses and Dissertations
This thesis demonstrates the feasibility of using qualitative analysis methods to evaluate computer security vulnerabilities. Although many risk analysis systems exist, few provide for the adequate analysis of identified vulnerabilities. While the main focus of this thesis is to evaluate computer security vulnerabilities, the methods involved have application in other areas requiring evaluation using qualitative methods. It is proposed, and demonstrated by this thesis, that the use of qualitative analysis using linguistic variables to describe the impact of computer security vulnerabilities is not only feasible, but intrinsically easier to understand and use than quantitative methods.