基于临增兴趣点的城市交通导航时空数据查询

Spatio-temporal data query of urban traffic navigation based on temporary additional point of interest

为了更好地提高城市交通导航时空数据查询效率,本文建立了城市交通导航数据模型,提出了一种城市交通导航时空索引—Urban Traffic Navigation R-tree,并在此基础上研究了基于临增兴趣点的城市交通导航时空数据查询方法,并通过实验证明该方法能较有效、准确地满足城市交通导航服务。

In order to enhance the query efficiency of urban traffic navigation spatio-temporal data, the paper presented an urban traffic navigation data model firstly, then it proposed a novel saptio-temporal index for the urban traffic network, which is called Urban Traffic Navigation R-tree. Finally, it put forward a spatio-tempora] data query method based on the temporary additional point of interest. The experimental result demonstrated the efficiency and accurac2~ of the proposed method, which could serve for the transportation navigation.