Title

Exploring Dynamic Fan Shapes for Nearby Traffic Monitoring Queries in Road Networks

Publication Type

Conference Proceeding Article

Publication Date

11-2011

Abstract

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.

Discipline

Databases and Information Systems | Numerical Analysis and Scientific Computing

Research Areas

Data Management and Analytics

Publication

GIS '11: Proceedings of the 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 1-4 November 2011, Chicago

First Page

433

Last Page

436

ISBN

9781450310314

Identifier

10.1145/2093973.2094041

Publisher

ACM

City or Country

Chicago, IL

Additional URL

http://dx.doi.org/10.1145/2093973.2094041