Exploring dynamic fan shapes for nearby traffic monitoring queries in road networks

Ting Wei Lin*, Baihua Zheng, Ling Yin Wei, Wen-Chih Peng

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

In this paper, we first introduce the traffic status estimation service, a location-based continuous range query application provided by the CarWeb system. The service provides users nearby realtime traffic estimation according to their locations and moving behaviors. This paper focuses on how to provide users with the most relevant information efficiently and accurately. We propose the Continuous Query with Dynamic Fan-Shape framework (CQ-DFS) which dynamically changes parameters of fan shape range query to efficiently acquire more useful query results without compromising the performance of the system. We conduct extensive experiments to demonstrate the effectiveness of CQ-DFS framework by using real world vehicle trajectories.

原文English
主出版物標題19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL GIS 2011
頁面433-436
頁數4
DOIs
出版狀態Published - 1 12月 2011
事件19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL GIS 2011 - Chicago, IL, United States
持續時間: 1 11月 20114 11月 2011

出版系列

名字GIS: Proceedings of the ACM International Symposium on Advances in Geographic Information Systems

Conference

Conference19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL GIS 2011
國家/地區United States
城市Chicago, IL
期間1/11/114/11/11

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