Grey correlation theory
WebGrey correlation theory is an uncertainty analysis method, which can find the relevance of various factors studied through certain data processing in incomplete information and find the main influencing factors. WebNov 5, 2024 · The current study exposed not only the inappropriate execution of Deng’s Grey Relational Analysis model, which is referred to as grey correlational theory in that publication, but also some miscalculations. Problem with the design of the experiment and other issues have also been reported.
Grey correlation theory
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WebJun 1, 2024 · Seven controlling factors were determined by analyzing 76 large or medium tunnel collapses in China. By means of synthesizing all kind of index parameters, grey relational coefficients were calculated based on grey correlation theory. Entropy weight method was used to compute the weight coefficients. And a comprehensive risk… View … Web1. Introduction of the grey theory. In 1982, “Systems & control letters” issued by the North Holland Publishing Company published the first grey system paper “The control …
WebFeb 27, 2024 · Grey relational degree analysis is a method used to analyze the correlation degree of various factors in the system [ 3, 4 ]. In short, grey relational analysis is an analytical comparison of geometric shapes … WebJul 1, 2024 · To perform better future trend prediction for an economy-energy-environment (3E) system and address the shortcomings of traditional multivariate grey models, this paper introduces a spatial correlation term into the multivariate discrete grey model, thus creating the SLDGM(1,n) model, and improves the final calculation of the model according to the …
WebApr 1, 2009 · Gray correlation theory is a system science theory pioneered by a famous scholar in China. Professor Deng [70] [71] [72] proposed the gray correlation model and the concept of gray... WebGrey system theory • Initially proposed by Julong Deng in 1982 • Multidisciplinary character • Aims to cope with the uncertainty of a system (so-called "grey …
WebApr 12, 2024 · In order to improve the synergy level of marine disaster monitoring and early warning in coastal cities, an evaluation index system of 21 factors with 5 dimensions was constructed based on the synergy theory. The weights of all levels of indicators were determined by coefficient of variation method, and 24 representative coastal cities in …
WebCorrelation degree was used to describe degree of correlation of two systems in the process of development and changes. Using grey correlation analysis method can analyze more accurately the correlation between the two systems through a small amount of data. T correlation coefficient was used to Compare the close degree of two sequences[2]. let ( ) eip21 cs1WebGrey correlation analysis is a kind of analysis method to measure the degree of association degree based on the similarity or dissimilarity of form and trend between the factors. Taking into account randomness and uncertainty of the logistics system and economic system, and the relationships of the logistics industry and economic growth ... eip2 amounthttp://ijbssnet.com/journals/Vol_7_No_2_February_2016/10.pdf font word thai sarabunWebOct 31, 2008 · The two methods, namely, direct criterion method and indirect grouping method, are based on the synthetic grey correlation theory. They are applied to analyze the data of an air cutting experiment on a CNC turning center. After optimization, the number of thermal points reduced from 16 to four. fontworks embroidery softwarefont word simile a latexWebFeb 10, 2024 · The grey theory is applied in various filed including manufacturing, process and service operations. The theory is also … font word simboliWebApr 22, 2024 · The grey correlation analysis method, as an effective model for evaluating systems with a large amount of unknown information, is a comprehensive evaluation … font worker