南京大学学报(自然科学版) ›› 2020, Vol. 56 ›› Issue (2): 227235.doi: 10.13232/j.cnki.jnju.2020.02.008
Ziwei Cui,Cheng Wang(),Delei Chen,Lei Lei
摘要:
用出行链方法推算的下车站点的记录可作为历史出行数据集,而现有的研究在对出行链断裂的记录进行下车站点推算时使用的历史数据集较小,造成可推算下车站点数据量少、准确率低的缺点.提出基于历史出行记录扩充的公交乘客下车站点推算方法.首先,使用多源数据集成的出行链方法进行下车站点推算,将已确定下车站点的数据作为历史数据集;其次,基于个人历史相似出行的方法对于未确定下车站点的记录进行推算;最后,选择同线路同站点上车的其他乘客的IC卡记录作为每条未识别下车站点记录的群体历史出行记录,并基于相似出行行为规律进行下车站点的推算.该方法增加了可推算下车站点记录的数据量、提高了推算的准确率.以厦门市为例的实验结果表明:在历史出行记录生成时,使用多源数据可比单源数据多生成3.48%历史出行记录,推算准确率提高1.99%;在历史出行记录选择时,选择群体历史出行记录分析得到的历史相似出行行为规律,可对前两种方法无法确定下车站点的所有记录进行推算,占全部待推算记录的21.81%,其中5.37%记录的下车站点推算正确.
中图分类号:
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