| 基于网络连接的轨迹数据时空查询条件 |
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| 引用本文： | 张晓昱,章燕萍,李响,唐代旻.基于网络连接的轨迹数据时空查询条件[J].交通与计算机,2009,27(5):44-47. |
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| 作者姓名： | 张晓昱 章燕萍 李响 唐代旻 |
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| 作者单位： | 1. 华东师范大学地理系,上海,200062
2. 地理信息科学教育部重点实验室,上海,200062 |
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| 基金项目： | 国家自然科学基金委员会地理人才基地项目(批准号:J0730534);;国家自然科基金项目(批准号:40701142)资助 |
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| 摘 要： | 补充当前针对车辆轨迹数据中提取交通信息的查询语言的研究。通过对构成数据查询语言的重要组成部分——查询条件的探讨，定义了一种基于网络连接的、能满足轨迹数据应用需求的时空查询条件。
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| 关 键 词： | 基于网络的轨迹数据 时空查询条件 动态交通流 |
Spatial-temporal Condition Queries Based on Network-constrained Trajectory Data |
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| ZHANG Xiaoyu,ZHANG Yanping,LI Xiang,TANG Daimin.Spatial-temporal Condition Queries Based on Network-constrained Trajectory Data[J].Computer and Communications,2009,27(5):44-47. |
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| Authors: | ZHANG Xiaoyu ZHANG Yanping LI Xiang TANG Daimin |
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| Institution: | Department of Geography;East China Normal University;Shanghai 200062;China;Key Laboratory of Geographic Information Science;Ministry of Education;China |
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| Abstract: | In this paper,an improved query language,through which transportation information from trajectory data can be easily extracted,is proposed.By studying the critical components of a query language,a spatial-temporal query conditions that can be used to extract network-constrained trajectory data,is developed. |
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| Keywords: | network-constrained trajectory spatial-temporal query condition query dynamic traffic flow |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
