关键词: 车站, 安全应急保障体系, 粗糙集理论, 区分矩阵, 属性约简, 熵权

Abstract: The sound station emergency security system not only relate to the safe production of a station, but the relationship between the healthy operation of the entire railway system. According to the station emergency security work characteristics, establishing the station emergency security comprehensive evaluation index system, and then construct the emergency security system decision table of station incident. Considering the security indicator attributes of the station?emergency security system are variety and complex, those attributes are removed which does not destroy the assorted quality of classification of original data through the method of discernibility matrix based on rough set theory, and achieve the purpose of dimension reduction. 5 station emergency security systems are proposed to establish the decision table, and using discernibility matrix theory to reduce the dimensions, calculate the index entropy, and get the optimal matrix.

Key words: railway station, security emergency security system, rough set theory, discernibility matrix, attribute reduction, entropy weight