The invention discloses a target city traffic accident severity analysis method, which comprises the following steps: acquiring traffic accident data of different cities, and determining a target city and a source city according to the traffic accident data volume of each city; performing feature alignment on the traffic accident data of the target city and the source city distributed in the heterogeneous feature space by using a unified feature representation method to obtain isomorphic sample feature representation of the cross-city traffic accident sample; and substituting the isomorphic sample feature representation of the cross-city traffic accident sample into a cost-sensitive cross-city traffic accident analysis model to obtain influence factors causing different severity degrees of a target city traffic accident. According to the invention, under the condition that only a small amount of target city traffic accident data is used, influence factors causing different severity degrees of the target city traffic accident can be accurately obtained.
本发明公开了一种目标城市交通事故严重程度分析方法,其包括:获取不同城市的交通事故数据,根据每个城市的交通事故数据量确定目标城市和源城市;利用统一特征表示法将分布于异构特征空间的目标城市和源城市交通事故数据进行特征对齐,得到跨城市交通事故样本的同构样本特征表示;将跨城市交通事故样本的同构样本特征表示带入代价敏感的跨城市交通事故分析模型,得到导致目标城市交通事故不同严重程度的影响因素。本发明能够在仅使用少量目标城市交通事故数据的条件下,准确获得导致目标城市交通事故不同严重程度的影响因素。
Target city traffic accident severity analysis method
一种目标城市交通事故严重程度分析方法
2023-06-23
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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