Elevator safety risk factors are the basis of safety risk early warning.In order to accurately identify the safety risk factors of the whole life cycle of the elevator,and then enable the construction and application of the elevator safety risk early warning model,this paper identifies the safety risk factors based on the improved process text mining technology.In the research process,on the one hand,a safety risk text mining process method including six steps of safety risk text corpus collection,text Chinese word segmentation,text keyword extraction,keyword related word extraction and semantic analysis,safety risk factor component condensation and aggregation is designed.On the other hand,based on the safety risk text mining process method,69 elevator safety risk factors in 7 dimensions are identified,and the risk cause information implied in the text data is comprehensively identified.The identification results of elevator safety risk factors provide risk factors and data basis for data-driven elevator safety risk early warning,and safety risk joint prevention and control.
NETL
NSTL
万方数据
