查询词典 piecewise regulated function

To avoid these shortcomings, this paper uses particle swarm optimization approach, instead of Gauss-Newtonian algorithm, to optimize projecting direction, and applies Hermite polynomial, instead of piecewise linear regression, to fit ridge function.

但一般投影寻踪回归算法构造技术较为复杂，采用多次局部光滑回归，计算量较大，外推较为繁杂，容易陷于局部解。

The main tool is the notion of the Lipschitz condition with positive non-decreasing integrable function L-average along the piecewise geodesic which includes theclassical Lipschitz condition as well as theγ-condition as special cases.

同时，我们在研究中引入了沿着分段测地线的关于取正值非减可积函数L-平均的Lipschitz条件的概念，从而把流形上的Kantorovich定理及Smale理论统一起来研究。

By using the techniques of an explicit criterion to determine the number of real roots of a univariate polynomial in ( [13] , [73] ); B-net form of bivariate splines function; discriminant sequence of polynomial (cf. [13] , [73] ) and the number of sign changes in the sequence of coefficients of the highest degree terms of sturm sequence, this paper determines the number of real intersection points two piecewise algebraic curves whose common points are finite.

3：利用杨路，张景中，侯晓荣在文献（[13]，[73]）中关于一元多项式实根的显式判准，以及二元样条函数的B-网形式，多项式的判别序列和Sturm序列的最高次数项系数序列的变号数，本文给出了两个分片代数曲线的实交点数的计算公式。

By virtue of the invariant manifolds and conservative property of Hamiltonian system, we construct a"switching algorithm"to compute the periodic solution of equation (4) when the dispersion distribution σ is periodic and piecewise constant function.

4运用不变流形的分析方法和哈氏系统的守恒性质，给出了当色散分布σ为周期的分片常数情形计算方程(4)的周期轨的一个"开关算法"。

Present a new LVQ wavelet image coding algorithm in which entropy coding and enumeration codes of different length are utilized. For wavelet image coding, there is a problem of mismatch between lattice distribution and the input vector probability density function in traditional LVQ algorithms (such as product-code pyramid VQ and piecewise uniform LVQ).

提出一种使用熵编码和非等长枚举码的格点矢量量化算法用于小波图象的编码，该算法以格点标记码码长的变化来适应输入矢量的非均匀分布，解决了传统的乘积码塔形矢量量化和分块均匀格点矢量量化算法中格点的调整难以与输入矢量概率分布实现良好匹配的问题。

This paper discusses themethod of building state model directly from the piecewise linear function.

讨论了状态模型的建立方法，可以直接从分段线性函数求得。

According designing field experiment of two factors and four levels for nitrogen and potassium in winter wheat, this paper analyzed the effect relationship between N and K fertilization in winter wheat in middle-high fertilizer loamy soil environment by the method of piecewise analytic function.

通过设计氮、钾二因素四水平的试验处理，利用分段函数量化分析了在中高肥力壤土条件下小麦N肥和K肥相互效应的定量关系。

Since the objective function of the model is nonlinear, the gradient of which is piecewise constant, the normal nonlinear programming algorithm can not be used.

该模型是非线性的且目标函数的梯度是分段常数，不能采用常规的非线性规划算法进行求解。

Value iteration based on the vector set results in the piecewise linear convex form of the optimal value function, which can also be used to obtain the optimal policy.

在向量集上进行的值迭代可以得到最优值函数的分段线性凸函数表示形式，同样也可以得到对应的策略。

In Chapter 2, by using a class of piecewise continuous Lyapunov function and the method of analysis, we study existence, uniqueness and stability of impulsive Volterra intergro-differential equations.

在第二章中，主要利用分析技巧和分段Lyapunov函数等方法，讨论了含脉冲的Volterra积分微分方程解的存在性和其零解稳定性的充分或必要条件。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。