查询词典 piecewise regulated function

After that, based on the CVaR optimization model with transaction costs, we simulate smoothly the piecewise linear function in objective function separately, and obtain the continuous smooth CVaR optimization model. As an application, we explain via an example when the smooth simulation model is applied in the big scale investment portfolio choice problems, its convergence and stability has the enhancement comparing with the above linear model.

其次，在带交易费用的CVaR最优化模型的基础上，将模型目标函数进行了平滑模拟，得到连续平滑的CVaR最优化模型，并经过实例说明，对于较大规模投资组合选择问题，经过平滑模拟后的模型其解的收敛性和稳定性较之原模型的解都得到了提高。

The improvements consist of two parts: 1 generalizing the PDE based approach to contrast enhancement to adapt to any specified stretch function for global and local contrast enhancement; 2 proposing a piecewise linear stretch function design method to achieve better histogram equalization.

改进包含两个方面：1 修改并推广了原有的基于PDE的灰度增强方法，使之可适用于任何设定的灰度拉伸函数；2给出了一种通用的分段线性拉伸函数设计方法，它较采用累积直方图作为灰度变换函数可达到更好的直方图均衡化效果。

Comparatively, the quadratic function approach was lack of these advantages.The piecewise linear function approach has been implemented in the graphical modeling system for optimal production planning of chemical companies, and the system is used in Baling Branch Company Sinopec.

分段线性函数建模方法已经在化工企业生产计划图形建模优化系统中实现，并在中国石化巴陵分公司得到应用。

An extra force is produced using the piecewise-constant MS model during the segmenting. In each time step, the additional force is added to reinitialize the level set function, advance the speed of the curve evolution. Otherwise, a nonlinear function Ψ is introduced to instead of u+ and u-for edge preserving in MS model.

该方法在分割过程中利用分段常数MS模型产生一种驱动力，在每个时间间隔加入这种驱动力来推动水平集函数的进化，提高曲线演化速度；另外，通过在MS模型中引入一个非线性函数Ψ代替u+和u-实现保边。

The basic idea behind recursive subdivision is to create a function by repeatedly refining an initial piecewise-linear function f〓 to produce a sequence of increasingly detailed functions f〓, f〓...

细分的基本思想是通过对初始分片线性函数f〓不断地加细加密得到一系列越来越精细的函数列f〓，f〓。。。，最终得到该函数列的极限函数f。

Error analysis and estimation of the second order extended state observer were done by noncontinuous piecewise Lyapunov function, and the system stability were proved by multiple Lyapunov function method.

利用非连续的分段Lyapunov函数进行二阶扩张状态观测器的误差分析与估计，并用多Lyapunov函数方法证明了系统的稳定性。

Several improvements has been made to the existing error analysis as follows: considering the complete form of the fal function in the error analysis; choosing the noncontinuous piecewise Lyapunov function to get better choose rule of parameters; giving the judging criteria of error convergence for the ESO with different parameters and the convergence value of the error.

在现有误差分析的基础上做了如下改进：误差分析中考虑fal函数的完整形式；选用非连续的分段Lyapunov函数，得到了更好的参数选取规则；给出了不同参数下扩张状态观测器误差收敛的评价标准以及误差收敛值。

The piecewise function is a kind of expression of specific functions, secondary school mathematics is an important function model.

分段函数是一类表达形式特殊的函数，是中学数学中一种重要函数模型。

Basically, a spline function is a piecewise function, each segment of which defines a traffic condition (e.g., congested or uncongested).

其中，每一曲线被表达成两个直线方程的组合。

This article intended to analyze and compare its function in English and Chinese social communication from the following aspects: protocol function in personal communication; active function in language speaking; humorous function in making the meaning of words more funny; deceit function in coving up the truth; ironic function in lashing out against the society and human nature.

本文从五个方面分析和比较了委婉语在中英社会交际中的功能，即：人际交流中的礼仪功能，言谈措辞的积极功能，使语言妙趣横生的幽默功能，掩盖事实真相的欺骗功能和鞭挞社会，人性的讽刺功能。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。