Processing of Location-Dependent Continuous Queries on Real-Time Spatial Data : The View from RETINA

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

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Detail(s)

Original languageEnglish
Title of host publicationProceedings - 14th International Workshop on Database and Expert Systems Applications
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages961-965
ISBN (Print)0769519938
Publication statusPublished - Sep 2003

Publication series

Name
Volume2003-January
ISSN (Print)1529-4188

Conference

Title14th International Workshop on Database and Expert Systems Applications (DEXA 2003)
PlaceCzech Republic
CityPrague
Period1 - 5 September 2003

Abstract

In this paper, using RETINA, a real-time navigation system, as an example, we study the important design issues underlying the processing of location-dependent continuous queries, especially those requiring access to data describing the current status of a dynamic environment and possessing spatial properties. To minimize the probability of missing the arrival deadline associated with each navigation request, we use a time-stamp with prediction scheme to model the traffic data and replicated dynamic directed graphs to organize the traffic data required for path searching and path calculation. Correctness of the best path calculations and scalability of the system are improved through an adaptive Push or Pull (APoP) scheme to monitor the best path and traffic data in navigation.

Research Area(s)

  • Conferences, Expert systems, Real time systems, Retina, Spatial databases, Real-time data management, temporal consistency, mobile computing

Citation Format(s)

Processing of Location-Dependent Continuous Queries on Real-Time Spatial Data : The View from RETINA. / Hung, Dick; Lam, Kam-Yiu; Chan, Edward; Ramamritham, Krithi.

Proceedings - 14th International Workshop on Database and Expert Systems Applications. Institute of Electrical and Electronics Engineers Inc., 2003. p. 961-965 1232146.

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review