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The Time Sequence Data Mining Techniques Based on Grey System Theory

Liu Bin,Liu Sifeng,Dang Yaoguo

Strategic Study of CAE 2003, Volume 5, Issue 9, Pages 32-35

Abstract: Based on the thoughts and the grey system (GS) theory, it proposes the GS-based data mining method set

Keywords： grey system theories embedded knowledge time sequeke data mining GDMS forecast

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An Axiomatic Definition of Degree of Greyness of Grey Number

Liu Sifeng,Li Yi

Strategic Study of CAE 2004, Volume 6, Issue 8, Pages 91-94

Abstract:

In this paper, an axiomatic system for the definition of degree of greyness of grey number is builtbased on discussion with two definitions of degree of greyness of grey number which have been put forwardTaking axioms as the criterion for definition of degree of grayness of grey number, a new formula fordefinition of degree of grayness of grey number has been formed with measure of the right range of greynumber and the background or field which is brought about by the grey number.

Keywords： grey systems degree of greyness of grey number measure axiomatic definition

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Multi-objective optimization of cutting parameters in high-speed milling based on grey relational analysis

Tao FU, Jibin ZHAO, Weijun LIU

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4, Pages 445-452 doi: 10.1007/s11465-012-0338-z

Abstract: In this study, the optimum cutting parameters are obtained by the grey relational analysis.The results of experiments show that grey relational analysis coupled with principal component analysis

Keywords： high-speed milling grey relational analysis principal component analysis parameters optimization

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Study on the Multi-attribute Decision Model of Grey Target Based on Interval Number

Dang Yaoguo,Liu Sifeng,Liu Bin

Strategic Study of CAE 2005, Volume 7, Issue 8, Pages 31-35

Abstract: the uncertainty hinders decisionmakers from defining accurately indices values when they evaluate the systeminterval number to denote this index value, but none has studied the interval number decision model in greyBased on the above, the multi-attribute decision model of grey target based on interval number is derived, which extends the grey target decision model from real number sequence to interval number sequenceand richens the grey theories in grey target decision.

Keywords： interval number grey target decision model application

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Application of grey-taguchi method for optimization of dry sliding wear properties of aluminum MMCs

Rajesh SIRIYALA, Gopala Krishna ALLURU, Rama Murthy Raju PENMETSA, Muthukannan DURAISELVAM

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3, Pages 279-287 doi: 10.1007/s11465-012-0329-0

Abstract: Initially, the optimization of the dry sliding performance of the SiC-reinforced MMCs was performed using greyBased on the GRA, the optimum level parameters for overall grey relational grade in terms of WVL andAnalysis of variance was performed to determine the effect of individual factors on the overall grey

Keywords： aluminum ANOVA (analysis of variance) grey relational analysis metal matrix composites SiC particulates

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Analytic Method to a Kind of Grey Fuzzy Decision Making Based on Entropy

Luo Dang,Liu Siwei

Strategic Study of CAE 2004, Volume 6, Issue 10, Pages 48-51

Abstract:

Based on grey system theory and fuzzy theory, uncertain decision making problems and several relativearticles were studied, then points out the advantage and shortage of them when dealing with grey fuzzymaximum entropy formulism, a method for multi-attribute group decision making based on the theory of grey

Keywords： grey fuzzy relation entropy multi-attribute decision making

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A novel grey wolf optimizer and its applications in 5G frequency selection surface design Research Article

Zhihao HE, Gang JIN, Yingjun WANG

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 9, Pages 1338-1353 doi: 10.1631/FITEE.2100580

Abstract: genetic algorithm (GA), particle swarm optimizer (PSO), improved (IGWO), and selective opposition based grey

Keywords： Grey wolf optimizer Fifth-generation wireless communication system (5G) Frequency selection surface

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An optimized grey wolf optimizer based on a mutation operator and eliminating-reconstructing mechanism Article

Xiao-qing ZHANG, Zheng-feng MING

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11, Pages 1705-1719 doi: 10.1631/FITEE.1601555

Abstract: Due to its simplicity and ease of use, the standard grey wolf optimizer (GWO) is attracting much attention

Keywords： Swarm intelligence Grey wolf optimizer Optimization Radial basis function network

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Study on Improvement of Token and Arithmetic of Interval Grey Numbers and Its GM(1,1) Model

Fang Zhigeng,Liu Sifeng,Lu Fang,Wan Jun,Liu Bin

Strategic Study of CAE 2005, Volume 7, Issue 2, Pages 57-61

Abstract:

Aimed at the severe problems in tokens and computations of grey numbers, which expanded unnecessarilyand distorted the information heavily, this paper defined the standard interval grey number and thefirst and the second standard grey number, and analyzed their relationship.Furthermore, it designed the transformation rule from general grey number to the standard interval greynumber, and developed the operation principle of the standard interval grey number to solve preferably

Keywords： interval grey number standard interval grey number token GM(1 1) model computation rules

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Forecast of fire accidents based on Grey-Markov model

Mao Zhanli,ZhuYi,Yang Bozhong,ZhuLei

Strategic Study of CAE 2010, Volume 12, Issue 1, Pages 98-101

Abstract: is influenced by many complex factors, and it has the characteristics of random and fluctuation, so greymodel and Markov model are combined together to establish a new Grey-Markov model in this paper .Thepaper adopts grey model and Markov model to show grey feature and random separately, at last the modelThe result shows the forecast precision of Grey-Markov model is higher than the forecast precision ofgrey model, the model can satisfy the demand in forecast precision, and it can be used for fire accidents

Keywords： Grey model Markov model fire accidents forecast

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Study on the Optimization of Public Traffic Line Network Based on Grey Fuzzy Numbers and Its Application

Deng Wei,Hu Qizhou

Strategic Study of CAE 2007, Volume 9, Issue 11, Pages 21-25

Abstract: nbsp;the decision-making method for the optimization of urban public traffic line network is set up by grey This paper proposes to use interval numbers of three parameters to present grey fuzzy numbers.

Keywords： public traffic line network optimization grey fuzzy numbers

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The research of grey clustering decision of assembly sequence based on petri net

Mo Qian,Luo Yi

Strategic Study of CAE 2008, Volume 10, Issue 11, Pages 65-68

Abstract: assembly sequence are certainly qualitative, fuzzy, non-numerical, assembly sequence is regarded as a gray system, and grey clustering decision method is adopted to evaluate feasible assembly sequence.This paper analyzes the gray classification of the influence factor and studies grey clustering decision

Keywords： assembly sequence petri net grey clustering decision method

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Study on Grey Incidence Decision Model of the Dynamic Multiple-attribute

Dang Yaoguo,Liu Sifeng,Liu Bin,Tao Yong

Strategic Study of CAE 2005, Volume 7, Issue 2, Pages 69-72

Abstract:

Based on the decision character of the dynamic multiple-attribute system, in initializing the attributeBy this method to find the positive and negative ideal precept of each period, a new grey incidence decisionIn this model, the developing character of each attribute in the system is fully consider, and appliedto grey incidence analysis.

Keywords： grey incidence analysis multi-attribute decision model

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Improvement on Degree of Grey Slope Incidence

Dang Yaoguo,Liu Sifeng,Liu Bin,Mi Chuanmin

Strategic Study of CAE 2004, Volume 6, Issue 3, Pages 41-44

Abstract: An improvement model on degree of grey slope incidence is developed.positive and negative relation of sequence and by the model the value of the degree and coefficient of greyAt the same time, the characteristics of the degree and the coefficient of grey incidence are studiedof the information of every timetable and its correlation of positive or negative, and the result of grey

Keywords： degree of grey incidence slope non-dimensionalization changing data sequence

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The Optimization of Grey Model GM (1,1)

Luo Dang,Liu Sifeng,Dang Yaoguo

Strategic Study of CAE 2003, Volume 5, Issue 8, Pages 50-53

Abstract:

This paper analyzes the reason that grey model GM (1,1) often makes errors in simulated data.GM (1,1) about the simulation, it can be concluded that the structure method of background value in greyThe optimum background value makes grey model GM (1,1) have better fitting and forecasting precision.

Keywords： grey model GM (1 1) winterization equation background value