Missing values in traffic flow data should be imputed because complete data are needed for space-time data mining.
交通流量的时空数据挖掘需要完整的数据，因此必须处理交通流量数据中的缺失值。
Some data access modes are proposed, specially for real-time traffic flow data and spatial data.
在此基础上着重提出了针对实时交通流和空间数据的存取方式。
Along with the wide application of the Urban traffic control (UTC) system, traffic control center can collect a mass of traffic flow data.
随着城市各种交通控制系统(utc)的广泛应用，交通控制中心能够采集大量的交通流数据。
Then, the BP neural network is trained by using traffic flow data from a section of freeway and the network model parameters can be obtained.
并利用一段高速公路的交通流数据对BP神经网络进行训练，得到网络参数。
This paper aims to realize the program design on the single-source traffic flow data quality control algorithm based on the value-calculation theory.
针对基于数值计算理论的单源交通流数据质量控制算法作程序实现。
Road traffic flow data collection system is an important component of ITS, and is the basis of other application of intelligent transportation system.
道路交通动态信息采集系统既是ITS的重要组成部分，又是ITS其它应用系统建设的基础。
The processing of traffic flow data provides reliable data for the service evaluation of road network, optimum path calculation and vehicle navigation.
交通流数据处理为路网服务水平的评价、最佳路径计算等提供可靠的数据。
This thesis illustrates examples of the methods on structure analysis of traffic flow data based on Vehicle License Plate Recognization with OLAP technology and its application prospect.
文章结合实例，阐述了运用OLAP技术对基于车牌识别的交通流数据进行结构分析的方法及应用展望。
Wavelet transform is introduced into traffic flow data preprocessing to enhance data accuracy. And the BP neural network predicts the future traffic flow velocity using the historical data.
在数据预处理中引入小波变换对交通流数据进行消噪处理，以提高数据的准确度。
Verifying quality of traffic flow data is to ensure the correctness and completeness of the data obtained from the data sources, providing reliable data for the data management and application.
交通流数据质量检验可以保证从数据源所获得数据的正确性和完整性，为数据的管理和应用提供了可靠的数据基础。
The Verifying Quality of Traffic Flow Data is to ensure the completeness and accuracy of the data obtained from the data source, and provides reliable data for the data management and application.
交通流数据质量检验可以保证从数据源所获得数据的正确性和完整性，并为数据的管理和应用提供可靠的数据基础。
The Verifying Quality of Traffic Flow Data is to ensure the completeness and accuracy of the data obtained from the data source, and provides reliable data for the data management and application.
交通流数据质量检验可以保证从数据源所获得数据的正确性和完整性，并为数据的管理和应用提供可靠的数据基础。
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