Also , following the digital processing of these logs , the optimal discrimination functions for determination of different types of bioherm reservoirs are presented by means of optimal partition , cluster and regression methods 利用岩心和测井数据总结了生物礁各种类型的测井响应,提出了适合柴西地区生物礁储集层的测井曲线特徵。
The influence of regression method and the complexity of the sample components on prediction accuracy and essential instrumental precision are discussed . the efficient means to enhance the prediction accuracy is presented 研究了建模方法和测量样品成份的复杂性对测量精度和必要仪器精度的影响,提出了提高测量精度的有效途径。
Founded on the theories of statistical learning , mathematical programming and functional analysis , svr is shown to outperform the traditional multiple linear regression method from the perspective of regression accuracy 根基于统计学习、数学规划及泛函分析理论,支持矢量回归方法较常规的多元回归方法在回归正确性上有较好的成效。
According to the time - varying behavior of concrete dam ' s deformation , the water pressure component is established considering the time - varying action and the temperature component is established by the integration regression method 摘要针对混凝土坝变形的时变特性,构建了考虑时变作用的坝体水压分量,采用积分回归法建立了温度分量。
Through the experiment on the cod data and compared with some commonly used regression methods , it proves the efficiency and applicability of the ensemble learning boosting regression algorithm 通过对一批水质cod数据进行的实验仿真,并将其结果和一些常用的回归方法作了比较,证明了集成学习boosting回归算法对各种实际问题的有效性和适应性。
Because the dependent variable in the models is the share of consumption of food , and the models are equation of demand system , therefore , zellner s seemingly unrelated regression method is applied to estimate the models 因为在模型中作为因变量的是食物的消费份额,同时模型是需求系统方程,因而,采用近乎非相关的系统迭代回归法进行模型估计。
In order to control the process of flexography and prove the quality , density mathematical model with colorful flexography plate was established by conic regression method , and the exactness of the model was testified 摘要为了更好地控制柔印流程,提高柔印质量,拟用柔版彩印样张通过2次曲线回归的方法,建立了密度式彩色柔版印刷呈色模型,并对模型的精度进行了检验。
3 the distributive dynamics of 95zr absorbed in crucian and the behavioral trait of 95zr in an aquatic ecosystem was studied by using isotope - tracer technology , and the mathematical model was confirmed by application of nonlinear regression method 3 、研究了卿鱼对952 :的吸收和在其体内的分布动态以及95zr在水生生态系统中的行为特性,并运用非线性拟合方法建立其数学模型。
In this paper , the design of flexure hinge is studied by advanced computer aided engineering software ( cad / cae ) , and the mathematical model of flexure hinge is conducted by orthogonal experimental scheme and stepwise regression method 本文通过先进的计算机辅助工程软件( cad cae )探讨了柔性铰链参数的设计,从统计学原理运用正交试验表和回归理论导出了柔性铰链设计参数的数学模型。
This paper is based on characteristics of transpacific shipping , analyzes its market features , and makes forecasting on container volumes and capacity of coming years with several methods employed which includes time series , regression method and so on 本文还对中美两国未来的运量,运力供给进行了详尽的预测,同时还对中美箱量不平衡解决方案和集装箱运价制定策略给予大量的篇幅。