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This language can be extended when components are well designed. By the introduction of a data type conversion function in the edge design and can-connect function in input terminal, the extended data flow language successfully solved the data conversion between different data types. It is a difficult problem in data flow language to realize conditional jump and recursion, however, by using the mechanism of active condition, this dissertation solves the problem well.

相比其它现有的数据流语言,扩展数据流语言具有以下特点:元件设计中定义了一种可激活函数,不同类型的节点允许定义各自的可激活条件,通过合理设计虚拟仪器元件,可以扩展语言的功能;在边的定义中引入类型转换函数,在输入端的设计中引入可连接函数,从而解决了不同数据类型之间数据传递的问题;在数据流语言中实现条件分支与循环通常是具有挑战性的一个问题,本文采用可激活函数的机制给出了一种解决方法。

This paper presents a new algorithm for feed forward neural networks based on a new optimal target function constructed according to Young inequality in the conjugate of convex function.

提出的算法是利用凸函数共轭性质中的Young不等式构造优化目标函数,这个优化目标函数对于权值和隐层输出来说为凸函数,不存在局部最小。

After a power spectrum is constructed, empirical wavelet coefficients are used to detect the jump points in the function to obtain the strong consistent estimator of the position and number of the frequencies. Numerical simulations show this method is reliable.

根据它们的协方差函数可以表示为一个Fourier级数,而其Fourier系数可通过协方差函数的逆变换得到的特性,我们对于零均值的近周期相关序列构造了类似于周期图的函数,并构造其经验小波系数,利用频率处于此函数的尖点的特性,以及此性质在经验小波系数中的反映,来确定频率的个数和位置,所有的估计量都是强相合的,此外,数值模拟的结果表明,我们的方法是有效的。

In this paper, the relevant definitions and theorems of function series continuity and function of the carried out a detailed convergence analysis, so that readers of their intrinsic relationship between the more detailed understanding.

本文通过相关定义与定理对函数的连续性及函数项级数的收敛性进行了详细的分析,使读者对它们之间存在的内在关系有更详细的认识。关键词:函数列;函数项级数;连续性;收敛性;一致收敛性

The application of the lattice Boltzmann method in unsteady open channel flows was studied in detail in the paper. An existing lattice BGK model was mended; For the problem of negative local equilibrium and evolutionary distribution, we proposed a lattice Boltzmann model based on cell-population equilibrium, which is a direct non-negative approximation to the continuous Maxwell distribution. The model reduces the transport and collision, two basic evolution steps in the LB model, to transport of the non-equilibrium distribution.

本文系统的研究了格子Boltzmann 方法在明渠非恒定流中的应用问题,改进了一个现有的LB 模型,数值实验表明此改进是有效的;在平衡态分布函数及分布函数的非负性问题上,作者提出了一个基于单元均衡的格子Boltzmann 模型,通过直接对Maxwell 分布函数的离散化实现对速度分布函数的非负离散,这种方法将传统模型演化过程中的碰撞和输运两个步骤直接表现为粒子的输运。

As for continuous random variable, the connection of distribution function between random variable and its function -- a new random variable can be obtained first according to the definition of distribution function, then the connection between distribution densities can be obtained by derivation; thus the distribution density is solved.

对于连续型随机变量ξ来说,可由分布函数的定义先求出随机变量ξ和它的函数η=f这个新的随机变量的分布函数之间的联系,然后通过求导,得到密度函数之间的联系,从而求得η的分布密度。

The relationship between the topology and convegence of networks is approached and the reason causing overtraining and overfitting is analysed. Then the redundant weights and nodes in the network are defined by using improved activity function and a new algorithm called the BPNSO for determining the network structure for any application is proposed, which use dual optimization objective function combining the mean squre error of the network output with network complexity penalty function.

文章对网络拓扑结构与网络收敛性和稳定性的关系进行了探讨,分析了网络出现Overtraining或Overfitting的原因和解决的目标,提出了神经网络结构优化的策略,改进了活化函数,定义了冗余权值和冗余节点的概念,为辨识和删除冗余权值和冗余节点,提出采用优化目标函数中增加网络复杂度罚函数的双重优化目标函数,并对罚因子提出了基于学习误差和权值的自适应动态调整公式,论文定义了这种BP网络结构优化方法为BPNSO,并给出了完整的计算流程。

The techniques of computing the domain of convergence and sum function and expanding functions in several variables to power series of functions in several variables are mainly discussed by many examples.

引入了多元函数项级数的概念,给出了其收敛域及和函数的定义;通过详实的例子讨论了多元幂级数的收敛域、和函数及多元函数展开为多元幂级数的计算方法。

Furthermore, we show that every generator of a nondegenerate distribution cosine function generates a regularized cosine function.

自然地 ,我们可以考虑一类退化型的分布余弦函数,并讨论该分布余弦函数与二阶 Cauchy问题、积分余弦函数及其其它类型余弦函数的关系。

In chapter 2, using the favorable characters of the function Q = ch{x - 1, we construct the hyperbolic cosine penalty function and algorithms and proved its convergence .

在第二章中,我们利用函数Q=ch-1良好的性质,提出一种用双曲余弦函数作罚项的双曲余弦罚函数及算法,证明了该罚函数和算法的合理性及迭代点列的收敛性。

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I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。