TY - GEN
T1 - Exploring dynamic fan shapes for nearby traffic monitoring queries in road networks
AU - Lin, Ting Wei
AU - Zheng, Baihua
AU - Wei, Ling Yin
AU - Peng, Wen-Chih
PY - 2011/12/1
Y1 - 2011/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84856507843&partnerID=8YFLogxK
U2 - 10.1145/2093973.2094041
DO - 10.1145/2093973.2094041
M3 - Conference contribution
AN - SCOPUS:84856507843
SN - 9781450310314
T3 - GIS: Proceedings of the ACM International Symposium on Advances in Geographic Information Systems
SP - 433
EP - 436
BT - 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL GIS 2011
T2 - 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL GIS 2011
Y2 - 1 November 2011 through 4 November 2011
ER -