查询词典 polynomial model

Introduces the notion of Feynman's path integrals and path integrals approach to financial modeling; Derives the path-dependent options pricing formula by making use of the Lagrange form of path integrals; Discusses Ilinski(2003)'s Gauge model which based on path integrals and fibre bundle, and its application for real-options evaluation; Summarizes the general modeling framework of options evaluation, taking advantage of the Hamilton form of path integrals; Applies the Geske-Johnson's analytical approximation in the path integrals form to the real-options evaluation for investment decisions, detailed procedure is presented under the assumption that underlying asset price dynamic follows a geometric Brownian motion, and the integral reduction for multivariate normal integrals and polynomial approximation for real-options evaluation is given.

系统论述了路径积分概念方法及其在期权估值中的应用，利用路径积分方法的Lagrange表述推导了路径依赖期权定价公式：探讨了基于路径积分和纤维丛的Gauge模型思想方法在实物期权价值评估中的应用；利用路径积分的Hamilton表述形式，总结了基于Hamilton表述的期权估值一般化框架；基于路径积分的形式框架建立了一个新的投资期权估值模型，并在具体的估值算法中给出了多重正态积分的降阶计算和期权价值的多项式逼近方法。

For the order selection of polynomial model is generally based on our experience,it has great randomness.

对多项式阶数的选择，一般根据经验选择，但这具有很大的随机性。

A method of the order selection of polynomial model for geometric errors modeling for NC machine tool was presented.

提出了一种针对数控机床几何误差多项式模型的阶数选择方法。

The three order polynomial of pump's efficiency curve for different speeds was inferenced for the first time, and the mathematical model for optimal operation of pumping unit by speed control was established.

详细地研究了螺旋离心泵的变速性能。首次推导出不同转速下泵效率曲线的3次多项式方程，并建立了变速优化运行数学模型。

The errors and area limits caused by the lunar curvature were avoided in this model established under the Selenocentric Orthogonal Coordinate System, the accidental errors of exterior line elements were reduced by orbit fitting and interpolation, the polynomial orders of systematic errors in satellite orbits were decreased with their expression in the flying coordinate system moving and rotating with satellites, and the reliability of exterior orientation solution was enhanced under the condition of sparse and low accuracy control points by appending constraint of orbit and attitude parameters.

该模型通过在月心直角坐标系进行影像空中三角测量来消除月球曲率引起的误差和测图范围限制，通过轨道形状的拟合与插值来减小摄影时刻轨道位置的偶然误差，在飞行坐标系中建立轨道修正模型来减少定向参数的数目，对轨道和姿态增加约束条件来提高月面控制点数目稀少及精度低条件下外方位解算的精度与可靠性。

The distinguishing feature is a clear physical conception. HIFNC-Ⅱ is an orthonormal basis neural network model. The neurons' output nonlinear function in the hidden layer is an orthogonal system of polynomial, which optimizes the configuration of the neural network.

在智能控制理论方面，详细剖析了一种仿人智能控制器，证明了广义频率函数与非线性系统描述函数的关系，并将其应用于仿人智能控制器的稳定性分析，在理论上证明了HIC的鲁棒特性。

To obtain more practically optimal solutions for production planning in chemical enterprises, piecewise linear function and polynomial function were used to model nonlinear unit consumptions.The optimal solutions obtained by the two approaches were compared in case studies.

为了得到更切合实际的化工企业生产计划优化结果，采用分段线性函数和多项式函数对非线性单耗问题建模并进行比较。

The back-propagation neural network was applied to modeling the primary mirror surface with inputs of actuator applied force and outputs of Zernike polynomial coefficient. By using primary mirror finite element analysis data, BP model was trained offline and its predictive precision was verified.

应用BP神经网络的方法建立了以致动器作用力为输入、镜面形变的Zernike多项式拟合系数为输出的镜面形变模型，并利用镜面形变的有限元分析的大量数据，对BP模型进行离线训练和模型预测效果的检验。

In the article , we adopt the Unrestricted Polynomial Distribution Lag model in

本文采用经济计量学中无约束多项式分布滞后模型，研究了利用

of polynomial distribution lag model was employed.

研究方法：多项式分布滞后模型和实证分析法。

The quality of both red and white wine depends very much on the wine maker talent and on the quality of the grapes.

他的红酒和白酒的品质，根据酿造者的能力和葡萄的质量，各有差异。

No, I don't want to get drunk before my next match.

" "不，我不想让我的下一场比赛前喝醉了。