News Column

Investigators from Dongguk University Target Applied Mathematics

June 17, 2014

By a News Reporter-Staff News Editor at Journal of Mathematics -- Data detailed on Applied Mathematics have been presented. According to news originating from Gyeongbuk, South Korea, by VerticalNews correspondents, research stated, "A rapid development in wireless communication and radio frequency technology has enabled the Internet of Things (IoT) to enter every aspect of our life. However, as more and more sensors get connected to the Internet, they generate huge amounts of data."

Our news journalists obtained a quote from the research from Dongguk University, "Thus, widespread deployment of IoT requires development of solutions for analyzing the potentially huge amounts of data they generate. A top-k query processing can be applied to facilitate this task. The top-k queries retrieve.. tuples with the lowest or the highest scores among all of the tuples in the database. There are many methods to answer top-k queries, where skyline methods are efficient when considering all attribute values of tuples. The representative skyline methods are soft-filter-skyline (SFS) algorithm, angle-based space partitioning (ABSP), and plane-project-parallel-skyline (PPPS). Among them, PPPS improves ABSP by partitioning data space into a number of spaces using hyperplane projection. However, PPPS has a high index building time in high-dimensional databases. In this paper, we propose a new skyline method (called Grid-PPPS) for efficiently handling top-k queries in IoT applications. The proposed method first performs grid-based partitioning on data space and then partitions it once again using hyperplane projection."

According to the news editors, the research concluded: "Experimental results show that our method improves the index building time compared to the existing state-of-the-art methods."

For more information on this research see: Grid-PPPS: A Skyline Method for Efficiently Handling Top-k Queries in Internet of Things. Journal of Applied Mathematics, 2014;():1-10. Journal of Applied Mathematics can be contacted at: Hindawi Publishing Corporation, 410 Park Avenue, 15TH Floor, #287 Pmb, New York, NY 10022, USA. (Hindawi Publishing -; Journal of Applied Mathematics -

The news correspondents report that additional information may be obtained from S.Y. Ihm, Dongguk Univ Gyeongju, Sch Comp Engn, Gyeongbuk 780714, South Korea. Additional authors for this research include A. Nasridinov and Y.H. Park.

Keywords for this news article include: Asia, Gyeongbuk, South Korea, Applied Mathematics

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Source: Journal of Mathematics

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