The improvement of fitting and results is obvious through the comparative analysis of 1iilear regression and forecasting in 1998.
经过与线性回归的对比和1998年的预报,在历史拟合率和预报效果上的提高较为明显。
In this paper, a new model system is introduced, which synthetically applies time series model, nonlinear regression and combination forecasting model to forecast the change of the market price.
文章通过对一套市场价格预测模型体系的介绍,综合运用时间序列模型、多元非线性回归和组合模型来预测市场价格走势,探索从多角度综合预测市场价格的问题。
Regression analysis, grey-system and exponential smoothing method are in common use as forecasting methods of maritime accidents nowadays.
回归分析法、灰色系统模型法和指数平滑法是目前常用的水上交通事故预测方法。
Discuss the means of deducing bidding models by linear regression and curve fit method, and further more, acquire rivals' bidding competitive ratio with fuzzy forecasting technique.
研究运用线性回归及曲线拟合手段推导投标报价模型的方法,并进一步运用模糊预测技术研究获取对手的竞标能力值。
There are traditional model methods of forecasting short-term load, such as time series, regression analysis, and so on.
电力系统短期负荷预测使用的方法有传统建模方法,诸如时间序列、回归分析等方法。
Using the information of rice phenology observed in Kai- yuan City and with the method of multiple regression, a long term forecasting model for rice yield was established.
本文以辽宁省开原市水稻物候观测实际资料为例,采用多重回归的方法,建立了影响水稻产量的多时效预报模式。
According to the economic indices of recent years, this paper constructs an econometric model of civil automobile by linear regression method and does some estimating and forecasting.
本文根据近年来国内各项经济指标,运用线性回归方法建立了民用汽车需求的计量经济模型,并对模型进行评价和预测。
Coupling partial least-squares regression and neural network in the article, the forecasting model of the quantity of runoff is established.
将偏最小二乘回归与神经网络耦合,建立了径流量预报模型。
Combining the advantages of regression analysis methods and time series forecast model with equal step length, a compound forecasting model was set up , and was tested with engineering data.
结果显示,把最小二乘支持向量机回归预测与等步长时序预测相结合的预测方法应用于地下工程围岩位移监测数据的分析及预测是可行的;
Based on the regression fitting and Markov chain forecast method, the "Regression-Markov" integration model for forecasting road accidents is built in this paper.
在回归拟合函数的基础上,引入马尔可夫链预测理论,建立了道路交通事故的“回归-马尔可夫”复合预测模型。
The multiple linear regression model for forecasting the electricity demand and factors affecting it was established consequently and was optimized by regression tests.
建立了用电需求量与主要影响因素之间的多元线性回归预测模型,经过回归检验,确定了优化的多元线性回归预测模型。
Maize dwarf Mosaic was predicted using growth model forecasting method, Markov chains forecasting method and regression model forecasting method. And yield loss of MDM was assessed.
利用生长模型预测法、马尔科夫链预测法和回归模型预测法对玉米矮花叶病发生流行进行预测,并对玉米矮花叶病损失估计进行了初步探讨。
Based on the classical model of liner regression and considering effects of fuzzy factors on load forecasting, a liner regression method of tow-layer fuzzy factors for load forecasting is established.
基于经典的线性预测回归模型,引入了模糊因素对预测结果的影响,构成了二级模糊因素的多元线性回归法。
Parameters of aircraft effectiveness is analyzed, and a new effectiveness forecasting method based on partial least-square regression is proposed.
通过实例与神经网络法的结果进行了比较,结果表明偏最小二乘回归更精确和简单。
In first the linear regression model resulted from least square method is presented and its disadvantage is analyse, great forecasting error exists when extreme abnormal case exists.
本文先介绍了用最小二乘法进行线性回归预测的方法,并分析了其不足,即当存在着极端的异常情况时,往往存在着较大的预测误差。
For non-linear problem, the forecasting technique of pre-classification and later regression was proposed, based on the classification approach of Support Vector Machine (SVM).
针对非线性问题,提出了基于支持向量机分类基础的先分类、再回归的预测方法。
The results of regression analysis showed self-esteem of job seekers has forecasting effect on total and all latitudes of job-search behavior.
回归分析结果显示自尊对求职行为及其各个维度都有明显的预测作用。
Based on these, multiple linear regression, LMBP, MOBP, VLBP and BRBP model are used to forecast oil-gas prospecting cost, and each of their forecasting performances is compared.
在此基础上,采用了多元线性回归模型、LMBP模型、MOBP模型、VLBP模型与BRBP模型对油气勘探成本进行预测,并对各模型的预测性能进行了比对。
The paper also provides the judgement criteria of optimal fitting regression equation and optimal forecasting. At last the concept of forecating risk degree is given.
本文还提出了最优选配回归方程和最优预计的判别准则以及预计风险度的概念。
The defects of forecasting disease and pest of mulberry trees by the method of convention statistical regression were analyzed in present paper, and its corresponding improved measures were suggested.
分析了用常规统计分析回归法在桑树病虫害预测预报中所存在的缺陷,提出了改进的思路。
A concrete dam deformation forecasting model is established based on the particle swarm optimization (PSO) algorithm and the traditional multi-statistical regression model.
将粒子群算法引入大坝安全监控领域,并结合多元回归统计模型,建立基于粒子群算法的混凝土坝变形预报模型。
Finally an optimal combinatorial forecasting model for fire in China has been established through combining the Grey and regression models.
再将最佳回归模型与最佳灰色模型有机地结合起来建立中国火灾最佳灰色回归组合预测模型。
The intervening system of college students 'psychological crisis should have 5 functions of first behavior, forecasting, intervention, transference, regression and health care.
大学生心理危机干预体系应具备5大职能即首发职能、预警职能、干预职能、转介职能、回归保健职能。
We found that the supply of residence is more than the needs in the future in Chengdu by forecasting by regression analysis and estimates of the curve.
本文运用回归分析和曲线估计法对成都市未来的住宅需求进行预测,通过预测,发现未来成都市住宅市场中,住宅供大于求。
With the excellence in complex and non-linear information processing, artificial neural network is fitter for the forecasting of fetal weight than traditional regression methods.
对复杂的、非线性信息处理有其独特的优势。在预测胎儿体重这一领域,人工神经网络的方法比传统的回归分析法有着更大的优势。
There are many methods for medium- and long-term runoff forecasting, such as time series, multiple linear regression and so on, which often have deviation in forecasting precision.
径流中长期预报一直以来都是人们关注的热点研究问题,常用的时间序列法、多元回归分析法等都存在预报精度偏差过大的问题。
There are many methods for medium- and long-term runoff forecasting, such as time series, multiple linear regression and so on, which often have deviation in forecasting precision.
径流中长期预报一直以来都是人们关注的热点研究问题,常用的时间序列法、多元回归分析法等都存在预报精度偏差过大的问题。
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