基于改进极限学习机的公交站点短时客流预测方法

被引:27
作者
黄益绍 [1 ,2 ]
韩磊 [1 ,2 ]
机构
[1] 长沙理工大学道路灾变防治及交通安全教育部工程研究中心
[2] 长沙理工大学交通运输工程学院
基金
湖南省自然科学基金;
关键词
城市交通; 公交站点短时客流预测; 改进粒子群算法; 极限学习机; IC卡数据; GPS数据;
D O I
10.16097/j.cnki.1009-6744.2019.04.017
中图分类号
U491.17 [];
学科分类号
摘要
以公交车IC卡和GPS数据为基础,提出了一种基于改进粒子群算法优化极限学习机(IPSO-ELM)的公交站点短时客流预测模型.依托IC卡和GPS数据在站点的特征表现和内在联系,定义了站点间距,并分析了站间距和车辆到总站距离间的联系;提出了公交乘客上车站点确定方法,进而得到公交站点上车客流量;通过分析公交客流数据特征,确定ELM输入参数维度,并采用IPSO算法找到ELM的最优隐含层节点参数;最后依托广州市19路公交车客流数据仓库进行了方法验证.结果表明:所用优化后的ELM方法预测误差在10%以内,并与应用广泛的SVM、ARIMA和传统ELM模型进行对比分析,发现改进的ELM方法拥有更高的可靠性和泛化性能.
引用
收藏
页码:115 / 123
页数:9
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