基于粗集-层次分析法的严重度模糊综合评判权重确定方法  

A new approach to determining the severity fuzzy comprehensive assessment weight based on the rough set hierarchical analysis process

作　　者：熊俊杰[1] 景国勋[1] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454003

出　　处：《安全与环境学报》2011年第6期241-244,共4页Journal of Safety and Environment

基　　金：国家自然科学基金项目(50874038)

摘　　要：针对传统方法确定严重度因素权重主观性较大,精度不够的问题,将粗集理论和层次分析法结合起来,提出基于粗集层次分析法的严重度模糊综合评判权重的获取规则。收集某矿冲击地压事故10例,以发生事故后死亡人数、受伤人数、财产损失、停产损失、对人体的危害程度、对环境的影响程度、对企业信誉的影响程度和其他潜在影响8项指标作为严重度要素,对各要素的原始事故数据进行挖掘。首先利用层次分析法求得各项严重度要素的主观权重,然后运用粗集理论计算得出客观权重并将其权值化处理作为其权重系数,最后由两者之和得到组合权重。The present paper is inclined to present an improved approach to determining the severity fuzzy comprehensive assessment weight based on the rough set hierarchical analysis for evaluating the severity of accidents. As we know, fuzzy assessment and severity factor weights are directly related to the scientific and accurate evaluation results. However, weighted evaluation involves a lot of subjective experience and the experts＇ grading, so it is better to join the Delphi method of weighting and the hierarchical analysis process into one to achieve an integrated qualitative and quantitative analysis result. It just comes from the actual purpose that this paper tries to associate the rough set theory with the hierarchical analysis process to formulate a severity fuzzy comprehensive assessment method based on the rough set hierarchical analysis process by absorbing respective advantages of the two methods. In doing so, we have collected ten cases of a mine rock burst accident while making use of the original accident data. The actual process of our adaptation turns to be as shown as it follows. When the accident took place, all the influential data were analyzed and categorized into eight factors, that is, the death toll, the injured persons, the property loss, the production damage, the harm degree to the human bodies, the affecting degree on the environment, the impact on the corporate credibility and other potential effects. Then we have taken three steps for establishing and perfecting our method. Firstly, we have tried to obtain the subjective weight of various severity factors by using the above said hierarchical analysis process. Secondly, we have worked out the data to get the attribute importance of the severity factors, and processed the weight to the coefficient. Lastly, we have evaluated the overcome subjectivity of the weight coefficient by using the traditional method trying to make the assessment results more objective so as to improve the precision of fuzzy comprehensive weighted assessment. The abov

关 键 词：安全工程 严重度 粗集理论 层次分析法 组合权重 

分 类 号：X620[环境科学与工程]