应用EMD方法分析交通流量的动态特性
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摘要
经验模态分解(EMD)方法是一种新型的数据分析方法。将EMD方法应用于交通网络流量分析,从空间上对网络交通流量进行研究,通过数学分析来探讨交通流量在网络条件下的动态特性,初步分析了在复杂的交通分布情况下不同路线长度的交通情况所产生的交通流量所占的比例,并寻找网络中的交通流量产生的主要线路以及关键节点。结果表明,在交通网络中,以相邻城市作为起始点的短距离交通所产生的交通流量占据了整个网络交通流量的主要部分。
The empirical mode decomposition(EMD) method is a new method for analyzing data.EMD is used to analyze traffic flow in complex networks.Studying spacial traffic flow in networks and using mathematical analysis to discuss the dynamical properties of these traffic flow,the proportions of traffic flow under different route length are preliminary studied to find main routes and notes.Results indicate that the traffic flow,formed between neighboring cities,takes main proportion in the network system and mainly distributes in the several important routes.
The empirical mode decomposition(EMD) method is a new method for analyzing data.EMD is used to analyze traffic flow in complex networks.Studying spacial traffic flow in networks and using mathematical analysis to discuss the dynamical properties of these traffic flow,the proportions of traffic flow under different route length are preliminary studied to find main routes and notes.Results indicate that the traffic flow,formed between neighboring cities,takes main proportion in the network system and mainly distributes in the several important routes.
引文
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12Arizona Department of Transportation
13Spitzer F.Principles of randomwalk.NewYork Springer-Verlag,1976;
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2王正武,黄中祥.短时交通流预测模型的分析与评价.系统工程,2003;21(6):
3De Menezes MA,Barab′asi A L.Phys Rev Lett2004;92:
4Li X.,Wang X F,Chen G R.IEEE TContr syst,2004;51:2074
5Wang X F,Chen G R.Physica A.2002;310:521
6De Menezes MA,Barab′asi A L.Phys Rev Lett,2004;93:068701
7Huang NE,Z S,S R Long,et al.The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis.Proc R Soc Lond A,1998;454:899—995
8李强,吴健,许正文,等.利用EMD方法提取太阳活动周期成分.空间科学学报,2007;27(1):
9Echeverria J C,Crowe J A,Woolfson MS.Medical&biological engi-neering&computing2001;39:471—480
10武安绪,林向东,穆会泳,等.EMD新技术在数字波形预处理中的初步应用.华南地震,2006;26(1):
11熊学军,郭炳火,胡筱敏,等.EMD方法和Hilbert谱分析法的应用与探讨.黄渤海海洋,2002;20(2):
12Arizona Department of Transportation
13Spitzer F.Principles of randomwalk.NewYork Springer-Verlag,1976;
14Li K P,Gao Z Y,Zhao X M.Multiple scale analysis of complex networks using the empirical mode decomposition method.Physica A,2008;12:2981—2986
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