Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (3): 755-761.doi: 10.12305/j.issn.1001-506X.2023.03.16

• Systems Engineering • Previous Articles     Next Articles

Relational analysis model and its application for general grey number panel data

Honghua WU1,2,*, Sifeng LIU1, Zhigeng FANG1   

  1. 1. College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
    2. School of Mathematical Sciences, University of Jinan, Jinan 250022, China
  • Received:2021-06-15 Online:2023-02-25 Published:2023-03-09
  • Contact: Honghua WU

Abstract:

To solve the problem of inconsistent grey relational order caused by the index order transformation of general grey number panel data, a grey centroid triangular surface relational analysis model is built. Firstly, based on the permutation and combination principle, the sample matrix is decomposed into binary index submatrices, and the kernel and upper and lower bounds of the general grey number elements of the sample matrix are given. Secondly, the center of gravity of the geometry determined by the upper and lower bounds of the adjacent four points of the binary index submatrix is given, and the spatial center of gravity triangle surface composed of the kernel and the center of gravity is determined. Then, based on the volume of the cylinder with the triangular surface of the spatial center of gravity as the curved top, the relational coefficient formula is constructed, and the grey relational analysis model of the general grey number panel data is obtained. Finally, the proposed model is applied to the selection problem of complex equipment suppliers to verify its rationality and effectiveness.

Key words: general grey number, panel data, relational analysis, center of gravity

CLC Number: 

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