| 交通事故等级与事故时间关联性的粗集分析 |
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| 引用本文： | 郝乃澜,王双维,陈强. 交通事故等级与事故时间关联性的粗集分析[J]. 计算机工程与应用, 2008, 44(11): 215-216. DOI: 10.3778/j.issn.1002-8331.2008.11.063 |
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| 作者姓名： | 郝乃澜 王双维 陈强 |
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| 作者单位： | 1.长春市医学高等专科学校，长春 130031 2.东北师范大学 物理学院，长春 130024 3.军事交通学院，天津 300161 |
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| 基金项目： | 基于车辆声谱特征的高速公路交通事件及交通流特性直接检测技术研究(No.50478007) |
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| 摘 要： | 利用粗集理论，以事故等级为指标，分别以月、周、日和小时为时间粒度，以吉林省某高速公路1999 年～2004年发生的交通事故统计数据为例，对道路交通事故等级的时间分布规律进行分析。结果表明，道路交通事故等级与时间有密切的关系，并且不同时间粒度对交通事故等级影响的重要程度又存在显著差别。
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| 关 键 词： | 交通事故等级 粗集理论 时间粒度 |
| 文章编号： | 1002-8331(2008)11-0215-02 |
| 收稿时间： | 2007-11-15 |
| 修稿时间： | 2007-11-15 |
Analyses on relevance of traffic accident classification and time based on rough set |
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| HAO Nai-lan,WANG Shuang-wei,CHEN Qiang. Analyses on relevance of traffic accident classification and time based on rough set[J]. Computer Engineering and Applications, 2008, 44(11): 215-216. DOI: 10.3778/j.issn.1002-8331.2008.11.063 |
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| Authors: | HAO Nai-lan WANG Shuang-wei CHEN Qiang |
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| Affiliation: | 1.Changchun Medical Higher Training School，Changchun 130031，China 2.Faculty of Physics，Northeast Normal University，Changchun 130024，China 3.Military Traffic Institute，Tianjin 300161，China |
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| Abstract: | This paper taking the traffic accidents which happened in expressways of Jilin province from 1999 to 2004 for example,using traffic accident classification as index,and using month,week,day and hour as time granularity,studied the datum deeply and reached the affect rule of time distribution of traffic accident classification by rough set.The results indicate that there is consanguineous connection between the traffic accidents classification and time,and there is remarkably difference between the important degrees of influencing on traffic accident classification by different time granularity. |
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| Keywords: | traffic accident classification rough set time granularity |
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