ASIA unversity:Item 310904400/13153
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    题名: A Hilbert Curve-Based Distributed Index for Window Queries in Wireless Data Broadcast Systems
    作者: 沈俊宏;Shen, Jun-Hong;沈俊宏;Shen, Jun-Hong
    贡献者: 資訊傳播學系
    日期: 2008-06
    上传时间: 2012-11-22 16:46:27 (UTC+8)
    摘要: Location-dependent spatial query in the wireless environment is that mobile users query the spatial objects dependent on their current location. The window query is one of the essential spatial queries, which finds spatial objects located within a given window. In this paper, we propose a Hilbert curve-based distributed index for window queries in the wireless data broadcast systems. Our proposed algorithm allocates spatial objects in the Hilbert-curve order to preserve the spatial locality. Moreover, to quickly answer window queries, our proposed algorithm utilizes the neighbor-link index, which has knowledge about neighbor objects, to return the answered objects. From our experimental study, we have shown that our proposed algorithm outperforms the distributed spatial index.
    關聯: Proc. of the IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing
    显示于类别:[資訊傳播學系] 會議論文

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