Efficient window query processing method using area-maximising points

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Efficient window query processing method using area-maximising points

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The use of area-maximising points (AMPs) is proposed as a method for improving the performance of window query processing. The AMP method is a progressive approximation method and is used to identify hits from the candidates. It involves the use of four sampled points of an object and shows a higher filter ratio and shorter processing time when compared with established approximation methods.

Inspec keywords: geographic information systems; query processing

Other keywords: processing time; progressive approximation method; filter ratio; sampled points; area-maximising points; window query processing method; GISs

Subjects: Spatial and pictorial databases; Geography and cartography computing

References

    1. 1)
      • Lee, In-Seok, Kang, Shin-Bong, Choy, Yoon-Chul: `Efficient spatial query processing using multi-filter', Proc. Conf. Korea Computer Graphics Society, 1995, p. 74–78.
    2. 2)
      • Joo, In-Hak, Choy, Yoon-Chul: `A study on the efficient spatial query processing method using MBR operatorand NCP filter', Proc. 12th Annual Symp. Geographic Information Systems (GIS98/RT98), 1998, p. 241–245.
    3. 3)
      • H.P. Kriegel , T. Brinkhoff , R. Schneider . Efficient spatial query processing in geographic database systems. IEEE Bull. Data Eng. , 3 , 10 - 15
    4. 4)
      • Brinkhoff, T., Kriegel, H.P., Schneider, R.: `Comparison of approximations ofcomplex objects used for approximation-based query processing in spatial database system', Proc. 9th Int. Conf. Data Engineering, 1993, p. 40–49.
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