Cloud Model Based Comprehensive Evaluation of Seafarers' Competency
Zhaolin Wu · Navigation of China · 2010
In order to treat uncertainties of the abstract concepts and qualitative information in evaluating human elements for maritime safety,a novel comprehensive evaluation method for evaluating seafarer's competency based on cloud models is presented,where inherent uncertainties in the complex system are kept in greatest degree,thanks to the advantage of the cloud theory.By cloud modeling different attribute factors,whether qualitative or quantitative variables,optimal cloud models of each factor are found,and the post-condition clouds of the corresponding rule are activated by soft-and operation.Final evaluation result is obtained,which is depicted by the distribution of cloud drops.The effectiveness and superiority of the proposed solution is demonstrated in evaluating seafarer's competency,and simulation research shows that the synthetic assessment method based on cloud models is practicable for assessing seafarer's competency.The contents of evaluation are more enriched and the results are more intuitive,flexible,reliable and consistent with human thinking and reasoning modes.