Regional security situation evolution-oriented security statistical model updating method and medium

• Main Authors: YANG MINMING, WANG XUESONG, PEI YINGYING
• Format: Patent
• Language: Chinese; English
• Published: 08.02.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention relates to a regional security situation evolution-oriented security statistical model updating method and a medium. The method specifically comprises the following steps: 1, performing traffic analysis district TAZ division; 2, performing independent variable category and space aggregation; 3, collecting and processing traffic accident data; 4, constructing a model updating sample data set; 5, establishing a negative binomial condition autoregression model; and 6, calculating the PSI of the security improvable space. Compared with the prior art, the method has the advantages that the latest data is utilized to update the security model, so that the recognition precision of the accident-prone area is improved, and the like. 本发明涉及一种面向区域安全态势演变的安全统计模型更新方法及介质，该方法具体包括以下步骤：步骤1：交通分析小区TAZ划分；步骤2：自变量类别与空间聚集；步骤3：交通事故数据收集与处理；步骤4：构建模型更新样本数据集；步骤5：建立负二项条件自回归模型；步骤6：计算安全可提高空间PSI。与现有技术相比，本发明具有利用最新的数据进行安全模型更新，从而提高了事故多发区域的识别精度等优点。