Spatial Interpolation of Streaming Geosensor Network Data in the RISER System

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9080)

Abstract

Managing the data generated by emerging spatiotemporal data sources, such as geosensor networks, presents a growing challenge to traditional, offline GIS architectures. This paper explores the development of an end-to-end system for near real-time monitoring of environmental variables related to wildfire hazard, called RISER. The system is built upon a geosensor network and web-GIS technologies, connected by a stream-processing system. Aside from exploring the system architecture, this paper focuses specifically on the important role of stream processing as a bridge between data capture and web GIS, and as a spatial analysis engine. The paper highlights the compromise between efficiency and accuracy in spatiotemporal stream processing that must often be struck in the stream operator design. Using the specific example of spatial interpolation operators, the impact of changes to the configurations of spatial and temporal windows on the accuracy and efficiency of different spatial interpolation methods is evaluated.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Xu Zhong
    • 1
  • Allison Kealy
    • 1
  • Guy Sharon
    • 2
  • Matt Duckham
    • 1
  1. 1.Department of Infrastructure EngineeringThe University of MelbourneMelbourneAustralia
  2. 2.IBM Research AustraliaCarltonAustralia

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