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Research of adaptive index based on slide window for spatial-textual query

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Abstract

Aiming at the spatial-textual continuous query with timeliness, we designed an Adaptive Index based on Slide Window, named as SWSA-Tree, which is composed of a slide window to deal with the time factor and a multi-way Self-Adjust Tree (named as SA-Tree) to index queries adaptively by their spatial and textual information. Based on the proposed index structure, we designed a spatial-textual continuous query algorithm. The experiments were conducted to compare the performance among the proposed SWSA-Tree, the index based on the quadtree and Inverted File (named as QIF) and IQ-tree. The comparison results demonstrated that the proposed adaptive index based on the slide window and the spatial-textual continuous query algorithm were with good scalability and low matching cost.

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Acknowledgements

This work was supported by National Natural Science Fund of China under grants 61502185 and 61370210, the Fundamental Research Funds for the Central Universities (No: 2017KFYXJJ071).

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Correspondence to HongJu Cheng.

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Yuan, L., Wang, M. & Cheng, H. Research of adaptive index based on slide window for spatial-textual query. Multimed Tools Appl 78, 30221–30240 (2019). https://doi.org/10.1007/s11042-018-6921-5

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  • DOI: https://doi.org/10.1007/s11042-018-6921-5

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