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Application of improved unascertained mathematical model in security evaluation of civil airport

机译:改进的不确定数学模型在民用机场安全评估中的应用

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摘要

In view of the defects of the civil airport security evaluation and the uncertain factors in it, a new civil airport security comprehensive evaluation method was proposed based on the improved unascertained measure theory. The research shows that: Firstly, the unascertained functions meet the requirements of non-negativity, additivity and normalization, which are the most obvious differences between unascertained mathematical functions and fuzzy membership functions; the unascertained functions of different indicators could be different as well as the unascertained functions of the same index on different grades. Secondly, introducing the concept of entropy, which is based on objective data, greatly reduces the subjectivity of the weight. Thirdly, the credible degree theory is introduced to analyze the comprehensive measurement vector, the range of which is usually between 0.6 and 0.9. Finally, when comes to the security evaluation of multi-airports, if these airports' security situation belong to one level, comprehensive safety score of each airport could be calculated according to the comprehensive measure vector, on the basis of which the security situation of each airport could be compared. The example shows that the method is simple and effective .This study provides a new way for the security evaluation of civil airport.
机译:针对民用机场安全评价的缺陷和不确定性因素,基于改进的不确定测度理论,提出了一种新的民用机场安全综合评价方法。研究表明:首先,不确定函数满足非负,可加性和归一化的要求,这是不确定函数与模糊隶属函数之间最明显的区别;不同指标的不确定功能可能会有所不同,同一指标在不同等级上的不确定功能可能会有所不同。其次,引入基于客观数据的熵的概念,大大降低了权重的主观性。第三,引入可信度理论来分析综合测量向量,其范围通常在0.6到0.9之间。最后,在进行多机场安全评估时,如果这些机场的安全状况属于一个级别,则可以根据综合测度向量计算出每个机场的综合安全评分,并以此为基础进行综合评估。机场可以比较。实例表明,该方法简单有效。本研究为民用机场安全评估提供了一种新途径。

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