Evaluation and Analysis of Ship Risk Factors Based on DS Theory
In view of the fact that there are many uncertain factors in ship navigation risk assessment,a risk assessment method based on fuzzy risk assessment evidence theory is proposed.In the evidence set theory space,each event can be identified as a fuzzy set subset and integrated with the fuzzy probability theory,so as to more comprehensively describe the professional experience or evidence interpretation of industry scholars,and put forward the description method of the quality function of fuzzy evidence theory.Finally,the detailed procedures of ship risk factor identification and risk assessment are put forward by using its ship safety system.The calculation results show that this method can avoid mistakes in decision-making,is simple and easy,and has strong popularization and application value.
water transportship navigationship risk assessmentfuzzy evidence theoryfuzzy set subset
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