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grey modelling
相关语句
  灰色建模
     The Method of Transformation for Grey Modelling in GIM(1) and It's Application
     GIM(1)灰色建模的变换方法及其应用
短句来源
     STUDY ON GREY MODELLING OF RESISTANCE CHANGE OF FATIGUE LIFE GAGE
     疲劳寿命计电阻变化的灰色建模研究
短句来源
     Study on the Model Precision of the Grey Modelling
     关于灰色建模的模型精度问题的研究
短句来源
     An Approach of the Grey Modelling Based on cotx Transformation
     基于函数cotx变换的灰色建模方法
短句来源
     STUDY ON GREY MODELLING OF FATIGUE LIFE-SPAN
     疲劳寿命的灰色建模研究
短句来源
更多       
  灰色模拟
     STUDY ON THE THEORY AND METHODOLOGY OF THE GREY MODELLING,PLANNING AND ASSESSMENT OF THE REGIONAL WATER ENVIRONMENTAL QUALITY
     区域水环境质量灰色模拟、规划和评价的理论和方法研究
短句来源
     The advantage of the grey modelling is that it can take the effects of many unknown and accidental factors in the river water quality system into consideration.
     灰色模拟考虑了实际河流水质系统中客观存在的不确知因素和偶然因素影响。
短句来源
     This review covers the research on the theory and methodology of the grey modelling, planning and assessment of the regional water environmental quality and the future development trend in this field is prospected.
     综述了区域水环境质量灰色模拟、规划和评价的理论和方法研究领域已取得的进展,展望了该研究领域有待进一步研究的问题。
短句来源
  “grey modelling”译为未确定词的双语例句
     Dynamic Grey Modelling Identification and Predication of Multi-point Deformation
     多点变形动态灰色模型辨识及预测
短句来源
     Finally, the paper presents the grey connection theory, GM(1, N) grey modelling theory, GM(1, 1)prediction model theory which respectivelyresolve such aspects: theory of correlative degree related to the influence of the carbonization depth, establishing the model of carbonization depths, modelling theory of estimating carbonization depths. And they achieve a better result with high precision.
     最后,本研究采用灰色系统理论的关联度分析、GM(1,N)建模理论、GM(1,1)预测模型理论三种方法,分别对碳化影响因素与碳化深度的关联度、碳化深度间模型、碳化深度预测加以分析,分析结果与实际情况较为接近。
短句来源
     On the basis of minimum of bilateral difference errors, a new calculating scheme is deduced for es-timating parameters in grey modelling by means of least square.
     基于使双向差分误差最小的准则,利用最小二乘原理,本文导出了估计灰色模型参数的一种新计算格式。
短句来源
     In this paper, a new approach by using linear regression method to solve the GM(1, 1) model was put forward. On this basis, a new precision test of the grey modelling was proposed.
     本文研究了GM(1,1)模型的解法,提出了用线性回归法来建立GM(1,1)模型,从而避免了复杂的矩阵运算,讨论了模型的后验差检验方法,提出了GM(1,1)模型的显著性检验方法。
短句来源
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By proving that calculated values from GM(1. 1) model of sequence are independent of the initial value of the sequence, the grey modelling problem of the sequence with three initial values was discussed in this paper. We obtain the conclusion that the minimal number of values in the sequence is three, which is required by GM(1,1) modelling in Grey System Theory.

本文通过论证序列的GM(1,1)模型计算值与原始序列的初值无关,讨论仅有三个数据构成的序列的灰色建模问题,得出可进行灰色建模的最少数据数为3的结论.

In this paper, we deal with the precision test of the grey modelling. We point out that the test of precision in [1] was unsuitable, and the statistical tests of the error in modelling are discussed. Based on the analysis of the model modifier, two improving methods are proposed. Finally we analyze an example in detail.

本文首先肯定了用数的生成方式来寻找数的规律性是一种很好的数据处理新方法。接着对灰色GM(1,1)建模的模型精度问题进行详细的讨论。否定了后验差检验方法,同时,利用数理统计常用方法对模型精度进行了比较深入的分析研究。最后,在此基础上提出了残差均值修正模型和尾部数列GM(1,1)修正模型两种新的模型修正方法。

On the basis of minimum of bilateral difference errors, a new calculating scheme is deduced for es-timating parameters in grey modelling by means of least square. As its application, forecasts of carbon dioxide concentration in the atmosphere and the foreign trade of China are exemplified and they are in good agreement with the statistical data.

基于使双向差分误差最小的准则,利用最小二乘原理,本文导出了估计灰色模型参数的一种新计算格式。作为其应用,文中给出了大气中二氧化碳含量和我国出口贸易预测的实例,其效果是令人满意的。

 
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