查询词典 prediction theory
- 与 prediction theory 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Although the panel logit models verify the effects of the explanatory variables consistently with the theory, the prediction accuracy is not as good as that of neuro fuzzy. In addition to the better out-sample prediction accuracy, neuro fuzzy also provides a more detailed and complicated relationship among the variables through the rule base mid 3-dimension graphics, which could be used for further theory development or modification Overall, the banking crises ca be predictable; however, each country needs different forecasting model. The mapping between the forecasting model mid data set characteristics ca be further developed for the future research.
实证结果显示,虽然Panel Logit之固定效果与随机效果模型皆验证了过去理论上各变数对银行危机之影响方向,但整体而言,其预测准确度并不比类神经模糊好;而类神经模糊除了提供更准确的样本外预测之外,其所建构的规则库与3D图提供较以往更为细腻的变数关系,此关系可作为未来理论发展之基础;整体而言银行危机可以被有效的预测,然而单一国家的预测结果显示不同的国家适用不同的预测工具,没有一项工具能够适用於所有的国家;而资料集属性与预测工具之对应关系可作为未来之研究方向。
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Accordingly, this paper proposes a short-term traffic flow prediction model of data fusion algorithm based on Filtering step by step. Compared with traditional prediction model through Kalman Filtering Theory, this model is not only reduce the computation and lower model to center processor's request, but also ensure estimate accuracy.
基于此,本文提出了一种基于分步式滤波的数据融合算法(Fusion Algorithm of Filtering Step By Step ,简记FAFSS)的短时交通流量预测模型,该模型与传统的基于卡尔曼滤波理论的预测模型相比,不仅减少了计算量,降低了模型对中心处理器的要求,而且保证了预测的精确度。
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Guided by the theory of sequence stratigraphy, using the data of seismic, drill, well-logging and core, and adopting the multiplex geophysical techniques of well-logging and seismic composite analysis, 3D seismic interpretation, well-logging inversion, isochronism slicing and Stratimagic seismic facies analysis, this paper goes deep into studying some technical problems about the establishment of isochronal sequence stratigraphy framework, the prediction of sedimentary microfacies distribution and the prediction of the subtle reservoirs, and then preliminarily establishes a set of techniques about high resolution sequence stratigraphy research and subtle reservoir exploration, which is guided by the theory of modern sequence stratigraphy and armed with advanced geophysical interpretation techniques.
本文以层序地层学理论为指导,综合利用地震、钻井、测井和岩芯等资料,充分应用井-震综合分析技术、三维地震解释技术、井约束反演技术、等时地层切片技术和Stratimagic地震相分析技术等手段,深入研究了井-震等时层序划分、沉积微相展布及隐蔽油藏分布预测等技术难题,初步形成了一套以现代层序地层学理论为指导,以先进的地球物理解释技术为手段的高分辨率层序地层学研究和隐蔽油藏预测技术方法体系,并将该技术方法体系在四方坨子地区进行了试用,取得了明显成效。
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We give left and right prediction of jump detection on basis of orthonormal polynomial. In theory analysis, we first give some theorems, then to proof the approximation, which is in a jump point detection by nonlinear prediction, can arrive one to number of samples. This result is considerable well. In the meantime, we study the approximate theory of measurement of jump point.
在理论分析中,我们首先给出了几个引理,然后证明了非线性预测法在检测单个突变点的逼近程度达到样本数的分之一,这样的结果是比较好的。
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According to the characteristics presented by armed helicopters during cruising or searching for ground targets, this paper has established the mean-square deviation stationary random model of helicopter tracks. It is an important method to decorrelate the measure noise by estimating the parameters of the color noise online. Kalman filtering and forecasting have been made with helicopter tracks. The simulated study has been carried out on helicopter tracks under the condition of color noise. It is very difficult to get an accurate and reliable prediction when the data is very limited. The paper make use of the theory of grey system to resolve the problem of prediction of helicopter tracks, establishing the GM model of grey systems and the cumulative residual error model of n degree, then correcting the GM forecast model. In the period of sampling, GM model and residual error model have been established on line to improve prediction precision.
结合武装直升机在巡航或搜索地面目标的特点,给出直升机航迹模型为协方差平稳随机模型,在线估计有色噪声参数,对测量噪声去相关,对直升机航迹进行卡尔曼滤波与预估,最后对有色噪声条件下的航迹进行了仿真研究;在数据非常有限的情况下,准确地预测又很困难,本文提出了用灰色系统理论解决直升机航迹预测问题,建立了灰色系统GM预测模型和n次累加残差模型并对GM预测模型进行修正,在每个采样期间内,实时在线建立GM预测模型和残差模型以提高预测精度。
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Language. The result show that outburst coal structure can be divided according to features of geology, logging and physical mechanics; according to basic features and mechanism of gas outburst, with geology factors, mathematical geology model predicting gas content, emission and outburst can be established by quantification theory; the result of prediction for gas danger in Huainan Pansan mine by predicting model is relatively reliable, and the weaved map of gas geology can meet the need of production; the design of gas danger prediction software make prediction more convenient and fleeter.
结果表明,根据突出煤体的地质、测井和物理力学特征可以划分突出煤体结构;根据瓦斯突出的基本特征和机理,采用地质因素,利用数量化理论可以建立瓦斯含量、涌出量及突出预测的数学地质模型;利用预测模型对淮南潘三矿瓦斯危险性的预测结果较为可靠,编制的瓦斯地质图可以满足生产的要求;瓦斯危险性预测软件的开发使预测更为便捷和快速。
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First the theory of grey system and of principle grey prediction model is presented.Based on the data of sown areas of farm crops in Hubei Province for 9 years,the GM(1,1) grey prediction model is established and the precision of prediction is higher by checking the result,so the model may be applied to the prediction of sown areas of farm crops in Hubei Province for futural severe years.
中文摘要:首先介绍了灰色系统理论及灰色预测建模原理,以湖北省连续9年的农作物播种面积数据为基础,建立GM(1,1)灰色预测模型,对湖北省未来8年的农作物播种面积进行了预测,并对预测结果进行检验,预测结果精度较高,可以用来对湖北省未来几年的农作物播种面积进行预测。
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Firstly, data processing method based on gray theory is used to change acoustic emission information into prediction data. Then prediction data is transformed into essential format of cusp catastrophic model by the least squares principle curve fitting and differential coefficient homeomorphous change. Finally, the gray and catastrophic prediction model is put forward to forecast failure time of rock slope.
首先运用灰色理论对声发射监测数据进行处理,得到预测数据,运用最小二乘曲线拟合展开,再运用微分同胚变换,转换为尖点突变模型的基本形式,建立灰色突变预测预报模型,从而对崩塌的时间进行预报。
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2Based on the nonlinear theory, we found the reservoir seismic nonlinearprediction and evaluation method technology, it is constituted by three nonlinearmethods and the technologys of the fracture prediction, the seismic inversion and thereservoir synthesis prediction evaluation: The seismic nonlinear prediction ofreservoir fracture is one new method which is composed with the phase spacereconstruction, the nonlinear parameters pick-up technology and the syntheticprediction evaluation method. The reservoir seismic high resolution nonlinearinversion is a new seismic inversion way which the BP algorithm is embeded in theauto-adapted genetic algorithms interior to have the predominances of neural networktechnology and genetic algorithms, it adopts the new embedded GA-BP mixalgorithms and the nonlinear mapping technology, and realizes the inversionautomatically, obtains the high resolution seismic inversion profile. The reservoirseismic nonlinear synthesis prediction and evaluation is a new method which iscombined organically of genetic algorithms and adaptive neural fuzzy inferencesystem, it will optimize the new seismic attribute space which are processed to take the input, uses the new adaptive mix algorithm which GDand LSE(least-square estimation) mix algorithms of ANFIS network insert to the GAinterior and taboo search algorithms is added to the intercrossed operation place,the simulation of the evaluation parameters is used quantitative evaluation guide lineto the reservoir quality and oil-gas distribution.
2基于非线性理论,创建了储层地震非线性预测与评价方法技术,它是由裂缝预测、地震反演和储层综合预测与评价等三大非线性方法与技术组成:储层裂缝地震非线性预测是由相空间重建、非线性参数提取与预测技术及综合评价方法组成的一种新型裂缝预测方法;储层地震高分辨率非线性反演是将BP算法嵌入自适应遗传算法内部所构成的集遗传算法和神经网络技术优势于一体的新的地震反演方法,它采用嵌入式新的混合算法及非线性映射技术,自动实现反演,获得高分辨率地震反演剖面;储层地震非线性综合预测与评价是由遗传算法与自适应神经网络—模糊推理系统有机地相结合而产生的储层预测与评价的新方法,它将优化处理所形成的新地震属性参数空间作为输入,采用将ANFIS网络中的混合算法嵌入到GA算法内部与禁忌搜索算法加在交叉操作处产生新的自适应混合算法,将综合评价参数作为储层品质和含油气性的定量评价指标。
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In this paper, different coal face 3801 in a mine gas emission time is based on gray theory of gas emission prediction method, a mine gas emission in GM (1, 1) prediction model made its prediction of gas emission, by making the residual test, the results show that the prediction accuracy can be predicted.
本文以某矿3801采煤工作面不同时间段瓦斯涌出量为依据,运用灰色理论提出了瓦斯涌出量的预测方法,建立了矿井瓦斯涌出量的GM(1 ,1)预测模型,并对其进行了瓦斯涌出量的预测,通过进行残差检验,结果表明预测精度高,可以进行预测。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?