期刊名称：International Journal of Advanced Computer Research
印刷版ISSN：2249-7277
电子版ISSN：2277-7970
出版年度：2019
卷号：9
期号：42
页码：434-439
DOI：10.19101/IJACR.2019.940030
出版社：Association of Computer Communication Education for National Triumph (ACCENT)
摘要：High speed data retrieval is a main problem which affects the efficiency of hospital management system with internet of things (IoT). For this reason, we propose a new retrieval method, named dynamical clustering center (DCC) method, which dynamically determines the optimized clustering center when constructing the R-tree. By choosing an optimized clustering center, the method allows the spatial data in the same subspace to be organized into the same sub-tree, and builds an efficient R-tree index layer by layer from the root to the leaves. The experiments show that the proposed method can improve system stability and retrieval efficiency for the smart hospital information system.
