A Calculation Method for Key Data of Data Stream Based on ρ-dominant and n-of-Nρ-dominant Skylines

BA Jianmin;GUO Yonghong;PENG Long;ZHAO Dongyang;SHAO Pengzhi;DU Hongbo

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2021, Vol. 42 ›› Issue (5) : 1004-1015. DOI: 10.3969/j.issn.1000-1093.2021.05.013
Paper

A Calculation Method for Key Data of Data Stream Based on ρ-dominant and n-of-Nρ-dominant Skylines

  • BA Jianmin, GUO Yonghong, PENG Long, ZHAO Dongyang, SHAO Pengzhi, DU Hongbo
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Abstract

The data collection method has constantly been enriched and developed, but the network in the data collection area is often limited, such as intermittent network and small network bandwidth, so the collected data is difficult to be accurately transmitted to the application side in real time. It is very important to ensure how to calculate the key data to reduce the network usage during data transmission. Based on the state data transmission of armored vehicles,the nature of the ρ-dominant relationship in the data stream is reanalyzed,and the query algorithm of ρ-dominant skyline in the data stream is changed and expanded. On this basis, a query algorithm of n-of-Nρ-dominant skyline in the data stream is proposed to further meet the requirements of the selection and transmission of key data in the network-restricted environment. Through the experiment, it is found that the improved ρ-dominant skyline query algorithm and the n-of-Nρ-dominant skyline query algorithm can calculate the relatively critical data, thereby reducing the network cost of data transmission,and n-of-Nρ-dominant skyline query has wider application than ρ-dominant skyline query in the data stream.

Key words

datastream / skylinequery / ρ-dominantskyline / n-of-Nρ-dominantskyline / datatransmission

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BA Jianmin, GUO Yonghong, PENG Long, ZHAO Dongyang, SHAO Pengzhi, DU Hongbo. A Calculation Method for Key Data of Data Stream Based on ρ-dominant and n-of-Nρ-dominant Skylines. Acta Armamentarii. 2021, 42(5): 1004-1015 https://doi.org/10.3969/j.issn.1000-1093.2021.05.013

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