结构函数
- 与 结构函数 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Up to now, the performance index is almost described as an algebraic function of manipulating variables, it implies the response of performance index to the manipulating variables is instantaneous or the system is in steady state, and the effects of disturbances on the objective function are not taken into consideration.
在以往的工作中,大都把过程的调优变量与目标函数之间的关系用代数方程描述,这意味着目标函数对调优变量的响应是瞬时的,或假定过程处于静态,而且一般也不考虑过程中其它干扰对目标函数的影响,即在算法结构中,调优变量与目标函数构成唯一的因果关系。
-
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 expansion coefficients Of aperture fields are Obtained after the three-dimensional arbitrary aperture fields have been represented by the sum of three-dimensional Gaussian function in the configuration-spatial wavenumber phase space.
本文利用Gabor原理把三维任意口面场表示成离散结构-波数相位空间中三维高斯基函数的叠加,将二维高斯基函数与相位空间谱双重正交的函数推广到三维,从而得到口面场展开函数。
-
According to the structured element representation theorem of fuzzy number and fuzzy-valued function, we obtained one-to-one isometric mapping from the family of standard bounded monotone function with same monotonic formal on [-1, 1] to the fuzzy number space, and proved they are homeomorphic.
在模糊值函数的模糊结构元表述理论的基础上,利用[-1,1]上同序标准单调函数类上的距离诱导出模糊值函数空间上的距离,证明了模糊实数空间与[-1,1]上同序单调函数类同胚。
-
In the program, user can choose multiple hidden layers and ten transfer functions for neuron including Linear transfer function, Sigmoid transfer function, Hyperbolic Tangent transfer function, Gaussian transfer function, etc. The capability of the program is better than that of program developed by our laboratory before.
本研究所开发之前馈式类神经网路视窗程式,在结构上可以选择多层的隐藏层,且转换函数有线性函数、S形函数、双曲正切函数、高斯函数等十种可做选择,比实验室开发的前一个版本,在功能上又提升了不少。
-
Quantifying similarity/difference between two objects plays an important role in many contexts The quality of the similarity/difference scores can be improved by considering the semantic information related to the features of objects A flexible semantic distance function called X Dist is proposed, which can utilize the semantic information to measure the difference between two objects based on a solution to the transportation problem from linear optimization With a ground distance function for single features being a metric, X Dist is also a metric This property is very useful for making searching efficient, but is not investigated in the previous research Moreover, the experimental results show X Dist can be as good as the previously studied similarity measures in nearest neighbor searching, discriminative power and computing speed
量化对象间相似性/差别的方法具有广泛的用途,利用相关的语义信息能够得到更好的量化结果提出了一个量化对象间语义差别的距离函数XDist,它基于线性优化中的运输问题模型和相关的语义信息量化两个对象之间的差别在量化特征的差别函数是度量的情况下,XDist是一个度量,在提高搜索的效率方面具有优势,弥补了以往研究的不足,而且实验初步表明,此函数在最近邻查询效果、差别分辨力和计算速度方面能与已有函数相媲美1 引言量化对象间相似性/差别的方法具有广泛的用途,例如数据挖掘中的聚类;信息检索中的相似文档查询;协同过滤中的相似用户查询;CBR中的相似案例查询集合是对象特征表示的常用结构,集合的元素是与对象特征相关的项,它们可以
-
In this paper employing periodic function of complex function, a power function and a logarithmic function were constructed to obtain Principle Quantum Number , Angular Quantum Number , Magnetic Quantum Number , Spin Quantum Number and the relations between them.
利用复变函数中周期函数结构,构造了一个幂函数和一个对数函数。给出了电子的主量子数、角量子数、磁量子数和自旋量子数,以及它们之间的关系。
-
First,we consider the lower semicontinuity property fora functional with linear growth in LDΩthe second, in the SBD space,we discussthe lower semicontinuity of an integral functional that the integrand is a Carathéodoryfunction and that satisfies a symmetric quasi-convex assumption, by the compactnesstheorem of the SBD space,blow-up method and Morrey theorem,prove that integral functional is lower semicontinuous with respect to L~1- convergence;then by using theone-dimentional sections method and the structure theorem of the BD functions, dis-cuss the lower semicontinuity of the integral functional in the whole BD space.
首先我们考虑LD空间满足线性增长的积分泛函的下半连续性;其次在SBD函数空间讨论了被积函数为Carathéodory函数时的积分泛函在满足对称拟凸条件时的下半连续性,主要利用SBD函数空间的紧性定理和blow-up方法以及Morrey定理等给出了积分泛函关于L~1-强收敛的下半连续性;然后利用BD函数的一维截断方法和结构定理,讨论了在BD全空间上的积分泛函的下半连续性。
-
Deduced the analytical structure of the Mamdani fuzzy system whose input sets were with generalized linear membership function and manifested that the output of the fuzzy systems were monotonical, decreasing, continuous and bounded.
设计了一种将三角形和梯形隶属函数作为特例的广义线性隶属函数,推导了输入采用广义线性隶属函数的典型Mamdani模糊系统的解析结构,证明了典型模糊系统是单调、递减的有界连续函数;在此基础上证明了该类模糊系统能以任意精度逼近任意连续实函数,最后仿真实例证明了本设计的有效性。
-
Second, based on the spherical vector wave function in uniaxial anisotropic medium, and the first, second, third and fourth spherical Bessel functions satisfy the same differential equation and recursive formula. The scattering fields in terms of spherical vector wave function from a uniaxial anisotropic spherical shell and an anisotropic uniaxial-coated conducting sphere by a plane wave are derived. The electromagnetic fields in uniaxial anisotropic medium and free space can be expressed in terms of spherical vector wave functions in uniaxial anisotropic media and isotropic medium.
二、在建立均匀各向异性单轴介质球矢量波函数理论的基础上,利用二阶线性偏微分方程的性质和第一、第二、第三和第四类球Bessel函数满足相同的微分方程和递推关系,我们分别研究了单轴介质球壳和单轴介质涂覆导体球对平面波的电磁散射特性,首先给出了各个区域的电磁场用球矢量波函数来表示的解析表达式,进而利用电磁场在边界上满足电磁场切向连续的边界条件和球谐函数的正交性,得出了各向异性单轴介质球结构中电磁场用球矢量波函数表示的系数所满足的矩阵方程。
- 推荐网络例句
-
Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
-
The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
-
However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。