Abstract
Smart medical technologies, combine Internet of Things, cloud computing and artificial intelligence technologies, are redefining the family life. With the advent of the era of big data, traditional medical service systems cannot meet the needs of big data processing in the current medical system because of the limited computing resources, slow operation speed and poorly distributed processing capacity. In this chapter, cloud-based smart medical system applying MapReduce distributed processing technology is proposed to solve these problems. A new distributed k-nearest neighbour (kNN) algorithm that combines the Voronoi-inverted grid (VIG) index and the MapReduce programming framework is developed to improve the efficiency of the data processing. Here, VIG is a spatial index, which uses the grid structure and the inverted index based on Voronoi partitioning technology. The results of extensive experimental evaluations indicate the efficiency and scalability of the proposed approach with real and synthetic data sets.
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Acknowledgements
This work is supported by the National Nature Science Foundation of China (61702071 and 61501076), Industrial and educational cooperation and collaborative education project of the ministry of education (201702029010), Science and Technology Public Welfare Institute Fund of Liaoning Province (20170053), the Project of College Students’ Innovative and Entrepreneurial Training Program (2018004, 2018016, 2018044, 2018046, 2018066, 2018125, 2018173, 2018243), the Key Research and Development Program of Liao Ning Province of China (2017104014), the Liao Ning Provincial Ph.D. Start-up Foundation of China (20170520438), the Natural Science Foundation of Liao Ning Province of China (20180551247), the Science and Technology Innovation Fund Project of Dalian of China (2018J12GX049, 2018J13SN088), Dalian Key Laboratory of Smart Medical and Health , Liaoning optoelectronic information technology engineering laboratory.
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Ji, C., Gao, Y., Wang, Z., Qin, J. (2020). A Distributed Spatial Index on Smart Medical System. In: Chen, F., García-Betances, R., Chen, L., Cabrera-Umpiérrez, M., Nugent, C. (eds) Smart Assisted Living. Computer Communications and Networks. Springer, Cham. https://doi.org/10.1007/978-3-030-25590-9_14
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